Design of polyaniline encapsulated greigite(Fe3S4) microparticles for excellent microwave absorption performance with broad bandwidth and ultrahigh reflection loss
Exploring microwave absorption materials with the advantages of wide effective absorption bandwidth, thin thickness, strong absorption capacity and light weight is significant to solving the problems of electromagnetic (EM) irradiation in both military and civil areas. Herein, to make up for the wea...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Liu, Qingzhong [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2022transfer abstract |
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| Übergeordnetes Werk: |
Enthalten in: Road traffic crash characteristics of drivers who take prescription medicines that carry a risk to driving - Lu, Li ELSEVIER, 2020, including materials science communications : an international, interdisciplinary journal on science characterization and processing of advanced materials : the international journal of the Chinese Society for Materials Science, New York, NY [u.a.] |
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| Übergeordnetes Werk: |
volume:290 ; year:2022 ; day:15 ; month:10 ; pages:0 |
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| DOI / URN: |
10.1016/j.matchemphys.2022.126593 |
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ELV058750975 |
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| 245 | 1 | 0 | |a Design of polyaniline encapsulated greigite(Fe3S4) microparticles for excellent microwave absorption performance with broad bandwidth and ultrahigh reflection loss |
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| 520 | |a Exploring microwave absorption materials with the advantages of wide effective absorption bandwidth, thin thickness, strong absorption capacity and light weight is significant to solving the problems of electromagnetic (EM) irradiation in both military and civil areas. Herein, to make up for the weaknesses of single component Fe3S4 or polyaniline in microwave absorption performance, the composites with extraordinary microwave absorption performance composed of Fe3S4 encapsulated in polyaniline was elaborately designed. The successful synthesis and the microwave absorption mechanisms of Fe3S4PANI composites were demonstrated by several characterizations. The results indicated that the dielectric constant of the composites can easily be adjusted by the content of PANI in favor of the impedance matching within the frequency range. Therefore, the sample F–P-2 presented the optimum performance, the minimum reflection loss (RLmin) value and broadest effective absorption bandwidth (EAB) respectively reach −63.8 dB at 7.68 GHz and 5.04 GHz (ranging from 12.88 to 17.92 GHz) under 40 wt% loading. Such good performance could be dependent on multiple loss mechanisms, such as the interface and dipole polarization, conduction loss as well as the multiple reflection and scattering. Based on the excellent properties and simple preparation methods, the Fe3S4@PANI composites can be a potential candidate in military and civil microwave absorption field. | ||
| 520 | |a Exploring microwave absorption materials with the advantages of wide effective absorption bandwidth, thin thickness, strong absorption capacity and light weight is significant to solving the problems of electromagnetic (EM) irradiation in both military and civil areas. Herein, to make up for the weaknesses of single component Fe3S4 or polyaniline in microwave absorption performance, the composites with extraordinary microwave absorption performance composed of Fe3S4 encapsulated in polyaniline was elaborately designed. The successful synthesis and the microwave absorption mechanisms of Fe3S4PANI composites were demonstrated by several characterizations. The results indicated that the dielectric constant of the composites can easily be adjusted by the content of PANI in favor of the impedance matching within the frequency range. Therefore, the sample F–P-2 presented the optimum performance, the minimum reflection loss (RLmin) value and broadest effective absorption bandwidth (EAB) respectively reach −63.8 dB at 7.68 GHz and 5.04 GHz (ranging from 12.88 to 17.92 GHz) under 40 wt% loading. Such good performance could be dependent on multiple loss mechanisms, such as the interface and dipole polarization, conduction loss as well as the multiple reflection and scattering. Based on the excellent properties and simple preparation methods, the Fe3S4@PANI composites can be a potential candidate in military and civil microwave absorption field. | ||
| 650 | 7 | |a Encapsulation |2 Elsevier | |
| 650 | 7 | |a Fe3S4@PANI composites |2 Elsevier | |
| 650 | 7 | |a Microwave absorption |2 Elsevier | |
| 650 | 7 | |a Loss mechanisms |2 Elsevier | |
| 700 | 1 | |a Guo, Jianming |4 oth | |
| 700 | 1 | |a Ye, Mingquan |4 oth | |
| 700 | 1 | |a Han, Aijun |4 oth | |
| 700 | 1 | |a Liao, Jun |4 oth | |
| 700 | 1 | |a Yu, Gaoqiang |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier |a Lu, Li ELSEVIER |t Road traffic crash characteristics of drivers who take prescription medicines that carry a risk to driving |d 2020 |d including materials science communications : an international, interdisciplinary journal on science characterization and processing of advanced materials : the international journal of the Chinese Society for Materials Science |g New York, NY [u.a.] |w (DE-627)ELV005250781 |
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10.1016/j.matchemphys.2022.126593 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001885.pica (DE-627)ELV058750975 (ELSEVIER)S0254-0584(22)00899-9 DE-627 ger DE-627 rakwb eng 610 VZ 44.38 bkl 44.91 bkl Liu, Qingzhong verfasserin aut Design of polyaniline encapsulated greigite(Fe3S4) microparticles for excellent microwave absorption performance with broad bandwidth and ultrahigh reflection loss 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Exploring microwave absorption materials with the advantages of wide effective absorption bandwidth, thin thickness, strong absorption capacity and light weight is significant to solving the problems of electromagnetic (EM) irradiation in both military and civil areas. Herein, to make up for the weaknesses of single component Fe3S4 or polyaniline in microwave absorption performance, the composites with extraordinary microwave absorption performance composed of Fe3S4 encapsulated in polyaniline was elaborately designed. The successful synthesis and the microwave absorption mechanisms of Fe3S4PANI composites were demonstrated by several characterizations. The results indicated that the dielectric constant of the composites can easily be adjusted by the content of PANI in favor of the impedance matching within the frequency range. Therefore, the sample F–P-2 presented the optimum performance, the minimum reflection loss (RLmin) value and broadest effective absorption bandwidth (EAB) respectively reach −63.8 dB at 7.68 GHz and 5.04 GHz (ranging from 12.88 to 17.92 GHz) under 40 wt% loading. Such good performance could be dependent on multiple loss mechanisms, such as the interface and dipole polarization, conduction loss as well as the multiple reflection and scattering. Based on the excellent properties and simple preparation methods, the Fe3S4@PANI composites can be a potential candidate in military and civil microwave absorption field. Exploring microwave absorption materials with the advantages of wide effective absorption bandwidth, thin thickness, strong absorption capacity and light weight is significant to solving the problems of electromagnetic (EM) irradiation in both military and civil areas. Herein, to make up for the weaknesses of single component Fe3S4 or polyaniline in microwave absorption performance, the composites with extraordinary microwave absorption performance composed of Fe3S4 encapsulated in polyaniline was elaborately designed. The successful synthesis and the microwave absorption mechanisms of Fe3S4PANI composites were demonstrated by several characterizations. The results indicated that the dielectric constant of the composites can easily be adjusted by the content of PANI in favor of the impedance matching within the frequency range. Therefore, the sample F–P-2 presented the optimum performance, the minimum reflection loss (RLmin) value and broadest effective absorption bandwidth (EAB) respectively reach −63.8 dB at 7.68 GHz and 5.04 GHz (ranging from 12.88 to 17.92 GHz) under 40 wt% loading. Such good performance could be dependent on multiple loss mechanisms, such as the interface and dipole polarization, conduction loss as well as the multiple reflection and scattering. Based on the excellent properties and simple preparation methods, the Fe3S4@PANI composites can be a potential candidate in military and civil microwave absorption field. Encapsulation Elsevier Fe3S4@PANI composites Elsevier Microwave absorption Elsevier Loss mechanisms Elsevier Guo, Jianming oth Ye, Mingquan oth Han, Aijun oth Liao, Jun oth Yu, Gaoqiang oth Enthalten in Elsevier Lu, Li ELSEVIER Road traffic crash characteristics of drivers who take prescription medicines that carry a risk to driving 2020 including materials science communications : an international, interdisciplinary journal on science characterization and processing of advanced materials : the international journal of the Chinese Society for Materials Science New York, NY [u.a.] (DE-627)ELV005250781 volume:290 year:2022 day:15 month:10 pages:0 https://doi.org/10.1016/j.matchemphys.2022.126593 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.38 Pharmakologie VZ 44.91 Psychiatrie Psychopathologie VZ AR 290 2022 15 1015 0 |
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10.1016/j.matchemphys.2022.126593 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001885.pica (DE-627)ELV058750975 (ELSEVIER)S0254-0584(22)00899-9 DE-627 ger DE-627 rakwb eng 610 VZ 44.38 bkl 44.91 bkl Liu, Qingzhong verfasserin aut Design of polyaniline encapsulated greigite(Fe3S4) microparticles for excellent microwave absorption performance with broad bandwidth and ultrahigh reflection loss 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Exploring microwave absorption materials with the advantages of wide effective absorption bandwidth, thin thickness, strong absorption capacity and light weight is significant to solving the problems of electromagnetic (EM) irradiation in both military and civil areas. Herein, to make up for the weaknesses of single component Fe3S4 or polyaniline in microwave absorption performance, the composites with extraordinary microwave absorption performance composed of Fe3S4 encapsulated in polyaniline was elaborately designed. The successful synthesis and the microwave absorption mechanisms of Fe3S4PANI composites were demonstrated by several characterizations. The results indicated that the dielectric constant of the composites can easily be adjusted by the content of PANI in favor of the impedance matching within the frequency range. Therefore, the sample F–P-2 presented the optimum performance, the minimum reflection loss (RLmin) value and broadest effective absorption bandwidth (EAB) respectively reach −63.8 dB at 7.68 GHz and 5.04 GHz (ranging from 12.88 to 17.92 GHz) under 40 wt% loading. Such good performance could be dependent on multiple loss mechanisms, such as the interface and dipole polarization, conduction loss as well as the multiple reflection and scattering. Based on the excellent properties and simple preparation methods, the Fe3S4@PANI composites can be a potential candidate in military and civil microwave absorption field. Exploring microwave absorption materials with the advantages of wide effective absorption bandwidth, thin thickness, strong absorption capacity and light weight is significant to solving the problems of electromagnetic (EM) irradiation in both military and civil areas. Herein, to make up for the weaknesses of single component Fe3S4 or polyaniline in microwave absorption performance, the composites with extraordinary microwave absorption performance composed of Fe3S4 encapsulated in polyaniline was elaborately designed. The successful synthesis and the microwave absorption mechanisms of Fe3S4PANI composites were demonstrated by several characterizations. The results indicated that the dielectric constant of the composites can easily be adjusted by the content of PANI in favor of the impedance matching within the frequency range. Therefore, the sample F–P-2 presented the optimum performance, the minimum reflection loss (RLmin) value and broadest effective absorption bandwidth (EAB) respectively reach −63.8 dB at 7.68 GHz and 5.04 GHz (ranging from 12.88 to 17.92 GHz) under 40 wt% loading. Such good performance could be dependent on multiple loss mechanisms, such as the interface and dipole polarization, conduction loss as well as the multiple reflection and scattering. Based on the excellent properties and simple preparation methods, the Fe3S4@PANI composites can be a potential candidate in military and civil microwave absorption field. Encapsulation Elsevier Fe3S4@PANI composites Elsevier Microwave absorption Elsevier Loss mechanisms Elsevier Guo, Jianming oth Ye, Mingquan oth Han, Aijun oth Liao, Jun oth Yu, Gaoqiang oth Enthalten in Elsevier Lu, Li ELSEVIER Road traffic crash characteristics of drivers who take prescription medicines that carry a risk to driving 2020 including materials science communications : an international, interdisciplinary journal on science characterization and processing of advanced materials : the international journal of the Chinese Society for Materials Science New York, NY [u.a.] (DE-627)ELV005250781 volume:290 year:2022 day:15 month:10 pages:0 https://doi.org/10.1016/j.matchemphys.2022.126593 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.38 Pharmakologie VZ 44.91 Psychiatrie Psychopathologie VZ AR 290 2022 15 1015 0 |
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10.1016/j.matchemphys.2022.126593 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001885.pica (DE-627)ELV058750975 (ELSEVIER)S0254-0584(22)00899-9 DE-627 ger DE-627 rakwb eng 610 VZ 44.38 bkl 44.91 bkl Liu, Qingzhong verfasserin aut Design of polyaniline encapsulated greigite(Fe3S4) microparticles for excellent microwave absorption performance with broad bandwidth and ultrahigh reflection loss 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Exploring microwave absorption materials with the advantages of wide effective absorption bandwidth, thin thickness, strong absorption capacity and light weight is significant to solving the problems of electromagnetic (EM) irradiation in both military and civil areas. Herein, to make up for the weaknesses of single component Fe3S4 or polyaniline in microwave absorption performance, the composites with extraordinary microwave absorption performance composed of Fe3S4 encapsulated in polyaniline was elaborately designed. The successful synthesis and the microwave absorption mechanisms of Fe3S4PANI composites were demonstrated by several characterizations. The results indicated that the dielectric constant of the composites can easily be adjusted by the content of PANI in favor of the impedance matching within the frequency range. Therefore, the sample F–P-2 presented the optimum performance, the minimum reflection loss (RLmin) value and broadest effective absorption bandwidth (EAB) respectively reach −63.8 dB at 7.68 GHz and 5.04 GHz (ranging from 12.88 to 17.92 GHz) under 40 wt% loading. Such good performance could be dependent on multiple loss mechanisms, such as the interface and dipole polarization, conduction loss as well as the multiple reflection and scattering. Based on the excellent properties and simple preparation methods, the Fe3S4@PANI composites can be a potential candidate in military and civil microwave absorption field. Exploring microwave absorption materials with the advantages of wide effective absorption bandwidth, thin thickness, strong absorption capacity and light weight is significant to solving the problems of electromagnetic (EM) irradiation in both military and civil areas. Herein, to make up for the weaknesses of single component Fe3S4 or polyaniline in microwave absorption performance, the composites with extraordinary microwave absorption performance composed of Fe3S4 encapsulated in polyaniline was elaborately designed. The successful synthesis and the microwave absorption mechanisms of Fe3S4PANI composites were demonstrated by several characterizations. The results indicated that the dielectric constant of the composites can easily be adjusted by the content of PANI in favor of the impedance matching within the frequency range. Therefore, the sample F–P-2 presented the optimum performance, the minimum reflection loss (RLmin) value and broadest effective absorption bandwidth (EAB) respectively reach −63.8 dB at 7.68 GHz and 5.04 GHz (ranging from 12.88 to 17.92 GHz) under 40 wt% loading. Such good performance could be dependent on multiple loss mechanisms, such as the interface and dipole polarization, conduction loss as well as the multiple reflection and scattering. Based on the excellent properties and simple preparation methods, the Fe3S4@PANI composites can be a potential candidate in military and civil microwave absorption field. Encapsulation Elsevier Fe3S4@PANI composites Elsevier Microwave absorption Elsevier Loss mechanisms Elsevier Guo, Jianming oth Ye, Mingquan oth Han, Aijun oth Liao, Jun oth Yu, Gaoqiang oth Enthalten in Elsevier Lu, Li ELSEVIER Road traffic crash characteristics of drivers who take prescription medicines that carry a risk to driving 2020 including materials science communications : an international, interdisciplinary journal on science characterization and processing of advanced materials : the international journal of the Chinese Society for Materials Science New York, NY [u.a.] (DE-627)ELV005250781 volume:290 year:2022 day:15 month:10 pages:0 https://doi.org/10.1016/j.matchemphys.2022.126593 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.38 Pharmakologie VZ 44.91 Psychiatrie Psychopathologie VZ AR 290 2022 15 1015 0 |
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10.1016/j.matchemphys.2022.126593 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001885.pica (DE-627)ELV058750975 (ELSEVIER)S0254-0584(22)00899-9 DE-627 ger DE-627 rakwb eng 610 VZ 44.38 bkl 44.91 bkl Liu, Qingzhong verfasserin aut Design of polyaniline encapsulated greigite(Fe3S4) microparticles for excellent microwave absorption performance with broad bandwidth and ultrahigh reflection loss 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Exploring microwave absorption materials with the advantages of wide effective absorption bandwidth, thin thickness, strong absorption capacity and light weight is significant to solving the problems of electromagnetic (EM) irradiation in both military and civil areas. Herein, to make up for the weaknesses of single component Fe3S4 or polyaniline in microwave absorption performance, the composites with extraordinary microwave absorption performance composed of Fe3S4 encapsulated in polyaniline was elaborately designed. The successful synthesis and the microwave absorption mechanisms of Fe3S4PANI composites were demonstrated by several characterizations. The results indicated that the dielectric constant of the composites can easily be adjusted by the content of PANI in favor of the impedance matching within the frequency range. Therefore, the sample F–P-2 presented the optimum performance, the minimum reflection loss (RLmin) value and broadest effective absorption bandwidth (EAB) respectively reach −63.8 dB at 7.68 GHz and 5.04 GHz (ranging from 12.88 to 17.92 GHz) under 40 wt% loading. Such good performance could be dependent on multiple loss mechanisms, such as the interface and dipole polarization, conduction loss as well as the multiple reflection and scattering. Based on the excellent properties and simple preparation methods, the Fe3S4@PANI composites can be a potential candidate in military and civil microwave absorption field. Exploring microwave absorption materials with the advantages of wide effective absorption bandwidth, thin thickness, strong absorption capacity and light weight is significant to solving the problems of electromagnetic (EM) irradiation in both military and civil areas. Herein, to make up for the weaknesses of single component Fe3S4 or polyaniline in microwave absorption performance, the composites with extraordinary microwave absorption performance composed of Fe3S4 encapsulated in polyaniline was elaborately designed. The successful synthesis and the microwave absorption mechanisms of Fe3S4PANI composites were demonstrated by several characterizations. The results indicated that the dielectric constant of the composites can easily be adjusted by the content of PANI in favor of the impedance matching within the frequency range. Therefore, the sample F–P-2 presented the optimum performance, the minimum reflection loss (RLmin) value and broadest effective absorption bandwidth (EAB) respectively reach −63.8 dB at 7.68 GHz and 5.04 GHz (ranging from 12.88 to 17.92 GHz) under 40 wt% loading. Such good performance could be dependent on multiple loss mechanisms, such as the interface and dipole polarization, conduction loss as well as the multiple reflection and scattering. Based on the excellent properties and simple preparation methods, the Fe3S4@PANI composites can be a potential candidate in military and civil microwave absorption field. Encapsulation Elsevier Fe3S4@PANI composites Elsevier Microwave absorption Elsevier Loss mechanisms Elsevier Guo, Jianming oth Ye, Mingquan oth Han, Aijun oth Liao, Jun oth Yu, Gaoqiang oth Enthalten in Elsevier Lu, Li ELSEVIER Road traffic crash characteristics of drivers who take prescription medicines that carry a risk to driving 2020 including materials science communications : an international, interdisciplinary journal on science characterization and processing of advanced materials : the international journal of the Chinese Society for Materials Science New York, NY [u.a.] (DE-627)ELV005250781 volume:290 year:2022 day:15 month:10 pages:0 https://doi.org/10.1016/j.matchemphys.2022.126593 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.38 Pharmakologie VZ 44.91 Psychiatrie Psychopathologie VZ AR 290 2022 15 1015 0 |
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10.1016/j.matchemphys.2022.126593 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001885.pica (DE-627)ELV058750975 (ELSEVIER)S0254-0584(22)00899-9 DE-627 ger DE-627 rakwb eng 610 VZ 44.38 bkl 44.91 bkl Liu, Qingzhong verfasserin aut Design of polyaniline encapsulated greigite(Fe3S4) microparticles for excellent microwave absorption performance with broad bandwidth and ultrahigh reflection loss 2022transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Exploring microwave absorption materials with the advantages of wide effective absorption bandwidth, thin thickness, strong absorption capacity and light weight is significant to solving the problems of electromagnetic (EM) irradiation in both military and civil areas. Herein, to make up for the weaknesses of single component Fe3S4 or polyaniline in microwave absorption performance, the composites with extraordinary microwave absorption performance composed of Fe3S4 encapsulated in polyaniline was elaborately designed. The successful synthesis and the microwave absorption mechanisms of Fe3S4PANI composites were demonstrated by several characterizations. The results indicated that the dielectric constant of the composites can easily be adjusted by the content of PANI in favor of the impedance matching within the frequency range. Therefore, the sample F–P-2 presented the optimum performance, the minimum reflection loss (RLmin) value and broadest effective absorption bandwidth (EAB) respectively reach −63.8 dB at 7.68 GHz and 5.04 GHz (ranging from 12.88 to 17.92 GHz) under 40 wt% loading. Such good performance could be dependent on multiple loss mechanisms, such as the interface and dipole polarization, conduction loss as well as the multiple reflection and scattering. Based on the excellent properties and simple preparation methods, the Fe3S4@PANI composites can be a potential candidate in military and civil microwave absorption field. Exploring microwave absorption materials with the advantages of wide effective absorption bandwidth, thin thickness, strong absorption capacity and light weight is significant to solving the problems of electromagnetic (EM) irradiation in both military and civil areas. Herein, to make up for the weaknesses of single component Fe3S4 or polyaniline in microwave absorption performance, the composites with extraordinary microwave absorption performance composed of Fe3S4 encapsulated in polyaniline was elaborately designed. The successful synthesis and the microwave absorption mechanisms of Fe3S4PANI composites were demonstrated by several characterizations. The results indicated that the dielectric constant of the composites can easily be adjusted by the content of PANI in favor of the impedance matching within the frequency range. Therefore, the sample F–P-2 presented the optimum performance, the minimum reflection loss (RLmin) value and broadest effective absorption bandwidth (EAB) respectively reach −63.8 dB at 7.68 GHz and 5.04 GHz (ranging from 12.88 to 17.92 GHz) under 40 wt% loading. Such good performance could be dependent on multiple loss mechanisms, such as the interface and dipole polarization, conduction loss as well as the multiple reflection and scattering. Based on the excellent properties and simple preparation methods, the Fe3S4@PANI composites can be a potential candidate in military and civil microwave absorption field. Encapsulation Elsevier Fe3S4@PANI composites Elsevier Microwave absorption Elsevier Loss mechanisms Elsevier Guo, Jianming oth Ye, Mingquan oth Han, Aijun oth Liao, Jun oth Yu, Gaoqiang oth Enthalten in Elsevier Lu, Li ELSEVIER Road traffic crash characteristics of drivers who take prescription medicines that carry a risk to driving 2020 including materials science communications : an international, interdisciplinary journal on science characterization and processing of advanced materials : the international journal of the Chinese Society for Materials Science New York, NY [u.a.] (DE-627)ELV005250781 volume:290 year:2022 day:15 month:10 pages:0 https://doi.org/10.1016/j.matchemphys.2022.126593 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.38 Pharmakologie VZ 44.91 Psychiatrie Psychopathologie VZ AR 290 2022 15 1015 0 |
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design of polyaniline encapsulated greigite(fe3s4) microparticles for excellent microwave absorption performance with broad bandwidth and ultrahigh reflection loss |
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Design of polyaniline encapsulated greigite(Fe3S4) microparticles for excellent microwave absorption performance with broad bandwidth and ultrahigh reflection loss |
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Exploring microwave absorption materials with the advantages of wide effective absorption bandwidth, thin thickness, strong absorption capacity and light weight is significant to solving the problems of electromagnetic (EM) irradiation in both military and civil areas. Herein, to make up for the weaknesses of single component Fe3S4 or polyaniline in microwave absorption performance, the composites with extraordinary microwave absorption performance composed of Fe3S4 encapsulated in polyaniline was elaborately designed. The successful synthesis and the microwave absorption mechanisms of Fe3S4PANI composites were demonstrated by several characterizations. The results indicated that the dielectric constant of the composites can easily be adjusted by the content of PANI in favor of the impedance matching within the frequency range. Therefore, the sample F–P-2 presented the optimum performance, the minimum reflection loss (RLmin) value and broadest effective absorption bandwidth (EAB) respectively reach −63.8 dB at 7.68 GHz and 5.04 GHz (ranging from 12.88 to 17.92 GHz) under 40 wt% loading. Such good performance could be dependent on multiple loss mechanisms, such as the interface and dipole polarization, conduction loss as well as the multiple reflection and scattering. Based on the excellent properties and simple preparation methods, the Fe3S4@PANI composites can be a potential candidate in military and civil microwave absorption field. |
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Exploring microwave absorption materials with the advantages of wide effective absorption bandwidth, thin thickness, strong absorption capacity and light weight is significant to solving the problems of electromagnetic (EM) irradiation in both military and civil areas. Herein, to make up for the weaknesses of single component Fe3S4 or polyaniline in microwave absorption performance, the composites with extraordinary microwave absorption performance composed of Fe3S4 encapsulated in polyaniline was elaborately designed. The successful synthesis and the microwave absorption mechanisms of Fe3S4PANI composites were demonstrated by several characterizations. The results indicated that the dielectric constant of the composites can easily be adjusted by the content of PANI in favor of the impedance matching within the frequency range. Therefore, the sample F–P-2 presented the optimum performance, the minimum reflection loss (RLmin) value and broadest effective absorption bandwidth (EAB) respectively reach −63.8 dB at 7.68 GHz and 5.04 GHz (ranging from 12.88 to 17.92 GHz) under 40 wt% loading. Such good performance could be dependent on multiple loss mechanisms, such as the interface and dipole polarization, conduction loss as well as the multiple reflection and scattering. Based on the excellent properties and simple preparation methods, the Fe3S4@PANI composites can be a potential candidate in military and civil microwave absorption field. |
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Exploring microwave absorption materials with the advantages of wide effective absorption bandwidth, thin thickness, strong absorption capacity and light weight is significant to solving the problems of electromagnetic (EM) irradiation in both military and civil areas. Herein, to make up for the weaknesses of single component Fe3S4 or polyaniline in microwave absorption performance, the composites with extraordinary microwave absorption performance composed of Fe3S4 encapsulated in polyaniline was elaborately designed. The successful synthesis and the microwave absorption mechanisms of Fe3S4PANI composites were demonstrated by several characterizations. The results indicated that the dielectric constant of the composites can easily be adjusted by the content of PANI in favor of the impedance matching within the frequency range. Therefore, the sample F–P-2 presented the optimum performance, the minimum reflection loss (RLmin) value and broadest effective absorption bandwidth (EAB) respectively reach −63.8 dB at 7.68 GHz and 5.04 GHz (ranging from 12.88 to 17.92 GHz) under 40 wt% loading. Such good performance could be dependent on multiple loss mechanisms, such as the interface and dipole polarization, conduction loss as well as the multiple reflection and scattering. Based on the excellent properties and simple preparation methods, the Fe3S4@PANI composites can be a potential candidate in military and civil microwave absorption field. |
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