Constructing Pd&PEDOTCNTs nanoarchitectures for dually detecting hydrogen and ammonia at room temperature
Hydrogen (H2) and ammonia (NH3) are both promising clean energy carriers, and timely detecting their leakage will guarantee future safe utilization. Employing an individual sensor to detect dual gases at room temperature may contribute to the miniaturization of sensors prototypes, however, remains c...
Ausführliche Beschreibung
Autor*in: |
Du, Lingling [verfasserIn] Xing, Xiaxia [verfasserIn] Feng, Dongliang [verfasserIn] Wang, Chen [verfasserIn] Li, Zhenxu [verfasserIn] Tian, Yingying [verfasserIn] Yang, Dachi [verfasserIn] |
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Format: |
E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2022 |
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Schlagwörter: |
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Übergeordnetes Werk: |
Enthalten in: Sensors and actuators |
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Übergeordnetes Werk: |
volume:375 |
DOI / URN: |
10.1016/j.snb.2022.132873 |
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Katalog-ID: |
ELV008789398 |
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245 | 1 | 0 | |a Constructing Pd&PEDOTCNTs nanoarchitectures for dually detecting hydrogen and ammonia at room temperature |
264 | 1 | |c 2022 | |
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520 | |a Hydrogen (H2) and ammonia (NH3) are both promising clean energy carriers, and timely detecting their leakage will guarantee future safe utilization. Employing an individual sensor to detect dual gases at room temperature may contribute to the miniaturization of sensors prototypes, however, remains challenging. Here, nanoarchitectures (NAs) of palladium (Pd) and poly-3, 4-ethylenedioxythiophene (PEDOT) self-assembling upon multi-wall carbon nanotubes (Pd&PEDOTCNTs) have been constructed via ultrasound-assisted redox. Such strategy achieves uniform PEDOT layer and the well-dispersed Pd nanoparticles (NPs) with sub-nanometer interface gaps upon CNTs. Benefitting from the unique nanostructures, the Pd&PEDOT@CNTs NAs exhibit the resistance-decreasing response to 0.2–40 v/v% H2, and the resistance-increasing one to 0.5 ppm - 30 v/v% NH3 at room temperature, respectively. Meanwhile, a principal component analysis (PCA) is conducted to understand the discrimination toward H2 and NH3, and such dual sensing displays 30 days long-term stability towards H2 and NH3. Theoretically, the dual sensing is ascribed to that the volume expansion of PdHx reduces the interface gaps among the Pd NPs and their conductivity; while a neutral polymer backbone is generated in PEDOT exposed in NH3 for elevating the resistivity. Our strategy could be employed to other dual-target gases detection in future miniaturized sensors prototypes. | ||
650 | 4 | |a Nanoarchitectures | |
650 | 4 | |a Dual-target gases | |
650 | 4 | |a Hydrogen sensing | |
650 | 4 | |a Ammonia sensing | |
650 | 4 | |a Room temperature | |
700 | 1 | |a Xing, Xiaxia |e verfasserin |4 aut | |
700 | 1 | |a Feng, Dongliang |e verfasserin |4 aut | |
700 | 1 | |a Wang, Chen |e verfasserin |4 aut | |
700 | 1 | |a Li, Zhenxu |e verfasserin |4 aut | |
700 | 1 | |a Tian, Yingying |e verfasserin |4 aut | |
700 | 1 | |a Yang, Dachi |e verfasserin |4 aut | |
773 | 0 | 8 | |i Enthalten in |t Sensors and actuators <Lausanne> / B |d Amsterdam [u.a.] : Elsevier Science, 1990 |g 375 |h Online-Ressource |w (DE-627)306710358 |w (DE-600)1500731-5 |w (DE-576)082435855 |x 0925-4005 |7 nnns |
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10.1016/j.snb.2022.132873 doi (DE-627)ELV008789398 (ELSEVIER)S0925-4005(22)01516-7 DE-627 ger DE-627 rda eng 530 620 DE-600 50.22 bkl 35.07 bkl Du, Lingling verfasserin aut Constructing Pd&PEDOTCNTs nanoarchitectures for dually detecting hydrogen and ammonia at room temperature 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Hydrogen (H2) and ammonia (NH3) are both promising clean energy carriers, and timely detecting their leakage will guarantee future safe utilization. Employing an individual sensor to detect dual gases at room temperature may contribute to the miniaturization of sensors prototypes, however, remains challenging. Here, nanoarchitectures (NAs) of palladium (Pd) and poly-3, 4-ethylenedioxythiophene (PEDOT) self-assembling upon multi-wall carbon nanotubes (Pd&PEDOTCNTs) have been constructed via ultrasound-assisted redox. Such strategy achieves uniform PEDOT layer and the well-dispersed Pd nanoparticles (NPs) with sub-nanometer interface gaps upon CNTs. Benefitting from the unique nanostructures, the Pd&PEDOT@CNTs NAs exhibit the resistance-decreasing response to 0.2–40 v/v% H2, and the resistance-increasing one to 0.5 ppm - 30 v/v% NH3 at room temperature, respectively. Meanwhile, a principal component analysis (PCA) is conducted to understand the discrimination toward H2 and NH3, and such dual sensing displays 30 days long-term stability towards H2 and NH3. Theoretically, the dual sensing is ascribed to that the volume expansion of PdHx reduces the interface gaps among the Pd NPs and their conductivity; while a neutral polymer backbone is generated in PEDOT exposed in NH3 for elevating the resistivity. Our strategy could be employed to other dual-target gases detection in future miniaturized sensors prototypes. Nanoarchitectures Dual-target gases Hydrogen sensing Ammonia sensing Room temperature Xing, Xiaxia verfasserin aut Feng, Dongliang verfasserin aut Wang, Chen verfasserin aut Li, Zhenxu verfasserin aut Tian, Yingying verfasserin aut Yang, Dachi verfasserin aut Enthalten in Sensors and actuators <Lausanne> / B Amsterdam [u.a.] : Elsevier Science, 1990 375 Online-Ressource (DE-627)306710358 (DE-600)1500731-5 (DE-576)082435855 0925-4005 nnns volume:375 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 50.22 Sensorik 35.07 Chemisches Labor chemische Methoden AR 375 |
spelling |
10.1016/j.snb.2022.132873 doi (DE-627)ELV008789398 (ELSEVIER)S0925-4005(22)01516-7 DE-627 ger DE-627 rda eng 530 620 DE-600 50.22 bkl 35.07 bkl Du, Lingling verfasserin aut Constructing Pd&PEDOTCNTs nanoarchitectures for dually detecting hydrogen and ammonia at room temperature 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Hydrogen (H2) and ammonia (NH3) are both promising clean energy carriers, and timely detecting their leakage will guarantee future safe utilization. Employing an individual sensor to detect dual gases at room temperature may contribute to the miniaturization of sensors prototypes, however, remains challenging. Here, nanoarchitectures (NAs) of palladium (Pd) and poly-3, 4-ethylenedioxythiophene (PEDOT) self-assembling upon multi-wall carbon nanotubes (Pd&PEDOTCNTs) have been constructed via ultrasound-assisted redox. Such strategy achieves uniform PEDOT layer and the well-dispersed Pd nanoparticles (NPs) with sub-nanometer interface gaps upon CNTs. Benefitting from the unique nanostructures, the Pd&PEDOT@CNTs NAs exhibit the resistance-decreasing response to 0.2–40 v/v% H2, and the resistance-increasing one to 0.5 ppm - 30 v/v% NH3 at room temperature, respectively. Meanwhile, a principal component analysis (PCA) is conducted to understand the discrimination toward H2 and NH3, and such dual sensing displays 30 days long-term stability towards H2 and NH3. Theoretically, the dual sensing is ascribed to that the volume expansion of PdHx reduces the interface gaps among the Pd NPs and their conductivity; while a neutral polymer backbone is generated in PEDOT exposed in NH3 for elevating the resistivity. Our strategy could be employed to other dual-target gases detection in future miniaturized sensors prototypes. Nanoarchitectures Dual-target gases Hydrogen sensing Ammonia sensing Room temperature Xing, Xiaxia verfasserin aut Feng, Dongliang verfasserin aut Wang, Chen verfasserin aut Li, Zhenxu verfasserin aut Tian, Yingying verfasserin aut Yang, Dachi verfasserin aut Enthalten in Sensors and actuators <Lausanne> / B Amsterdam [u.a.] : Elsevier Science, 1990 375 Online-Ressource (DE-627)306710358 (DE-600)1500731-5 (DE-576)082435855 0925-4005 nnns volume:375 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 50.22 Sensorik 35.07 Chemisches Labor chemische Methoden AR 375 |
allfields_unstemmed |
10.1016/j.snb.2022.132873 doi (DE-627)ELV008789398 (ELSEVIER)S0925-4005(22)01516-7 DE-627 ger DE-627 rda eng 530 620 DE-600 50.22 bkl 35.07 bkl Du, Lingling verfasserin aut Constructing Pd&PEDOTCNTs nanoarchitectures for dually detecting hydrogen and ammonia at room temperature 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Hydrogen (H2) and ammonia (NH3) are both promising clean energy carriers, and timely detecting their leakage will guarantee future safe utilization. Employing an individual sensor to detect dual gases at room temperature may contribute to the miniaturization of sensors prototypes, however, remains challenging. Here, nanoarchitectures (NAs) of palladium (Pd) and poly-3, 4-ethylenedioxythiophene (PEDOT) self-assembling upon multi-wall carbon nanotubes (Pd&PEDOTCNTs) have been constructed via ultrasound-assisted redox. Such strategy achieves uniform PEDOT layer and the well-dispersed Pd nanoparticles (NPs) with sub-nanometer interface gaps upon CNTs. Benefitting from the unique nanostructures, the Pd&PEDOT@CNTs NAs exhibit the resistance-decreasing response to 0.2–40 v/v% H2, and the resistance-increasing one to 0.5 ppm - 30 v/v% NH3 at room temperature, respectively. Meanwhile, a principal component analysis (PCA) is conducted to understand the discrimination toward H2 and NH3, and such dual sensing displays 30 days long-term stability towards H2 and NH3. Theoretically, the dual sensing is ascribed to that the volume expansion of PdHx reduces the interface gaps among the Pd NPs and their conductivity; while a neutral polymer backbone is generated in PEDOT exposed in NH3 for elevating the resistivity. Our strategy could be employed to other dual-target gases detection in future miniaturized sensors prototypes. Nanoarchitectures Dual-target gases Hydrogen sensing Ammonia sensing Room temperature Xing, Xiaxia verfasserin aut Feng, Dongliang verfasserin aut Wang, Chen verfasserin aut Li, Zhenxu verfasserin aut Tian, Yingying verfasserin aut Yang, Dachi verfasserin aut Enthalten in Sensors and actuators <Lausanne> / B Amsterdam [u.a.] : Elsevier Science, 1990 375 Online-Ressource (DE-627)306710358 (DE-600)1500731-5 (DE-576)082435855 0925-4005 nnns volume:375 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 50.22 Sensorik 35.07 Chemisches Labor chemische Methoden AR 375 |
allfieldsGer |
10.1016/j.snb.2022.132873 doi (DE-627)ELV008789398 (ELSEVIER)S0925-4005(22)01516-7 DE-627 ger DE-627 rda eng 530 620 DE-600 50.22 bkl 35.07 bkl Du, Lingling verfasserin aut Constructing Pd&PEDOTCNTs nanoarchitectures for dually detecting hydrogen and ammonia at room temperature 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Hydrogen (H2) and ammonia (NH3) are both promising clean energy carriers, and timely detecting their leakage will guarantee future safe utilization. Employing an individual sensor to detect dual gases at room temperature may contribute to the miniaturization of sensors prototypes, however, remains challenging. Here, nanoarchitectures (NAs) of palladium (Pd) and poly-3, 4-ethylenedioxythiophene (PEDOT) self-assembling upon multi-wall carbon nanotubes (Pd&PEDOTCNTs) have been constructed via ultrasound-assisted redox. Such strategy achieves uniform PEDOT layer and the well-dispersed Pd nanoparticles (NPs) with sub-nanometer interface gaps upon CNTs. Benefitting from the unique nanostructures, the Pd&PEDOT@CNTs NAs exhibit the resistance-decreasing response to 0.2–40 v/v% H2, and the resistance-increasing one to 0.5 ppm - 30 v/v% NH3 at room temperature, respectively. Meanwhile, a principal component analysis (PCA) is conducted to understand the discrimination toward H2 and NH3, and such dual sensing displays 30 days long-term stability towards H2 and NH3. Theoretically, the dual sensing is ascribed to that the volume expansion of PdHx reduces the interface gaps among the Pd NPs and their conductivity; while a neutral polymer backbone is generated in PEDOT exposed in NH3 for elevating the resistivity. Our strategy could be employed to other dual-target gases detection in future miniaturized sensors prototypes. Nanoarchitectures Dual-target gases Hydrogen sensing Ammonia sensing Room temperature Xing, Xiaxia verfasserin aut Feng, Dongliang verfasserin aut Wang, Chen verfasserin aut Li, Zhenxu verfasserin aut Tian, Yingying verfasserin aut Yang, Dachi verfasserin aut Enthalten in Sensors and actuators <Lausanne> / B Amsterdam [u.a.] : Elsevier Science, 1990 375 Online-Ressource (DE-627)306710358 (DE-600)1500731-5 (DE-576)082435855 0925-4005 nnns volume:375 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 50.22 Sensorik 35.07 Chemisches Labor chemische Methoden AR 375 |
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530 620 DE-600 50.22 bkl 35.07 bkl Constructing Pd&PEDOTCNTs nanoarchitectures for dually detecting hydrogen and ammonia at room temperature Nanoarchitectures Dual-target gases Hydrogen sensing Ammonia sensing Room temperature |
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Constructing Pd&PEDOTCNTs nanoarchitectures for dually detecting hydrogen and ammonia at room temperature |
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Constructing Pd&PEDOTCNTs nanoarchitectures for dually detecting hydrogen and ammonia at room temperature |
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Du, Lingling |
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Du, Lingling Xing, Xiaxia Feng, Dongliang Wang, Chen Li, Zhenxu Tian, Yingying Yang, Dachi |
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constructing pd&pedotcnts nanoarchitectures for dually detecting hydrogen and ammonia at room temperature |
title_auth |
Constructing Pd&PEDOTCNTs nanoarchitectures for dually detecting hydrogen and ammonia at room temperature |
abstract |
Hydrogen (H2) and ammonia (NH3) are both promising clean energy carriers, and timely detecting their leakage will guarantee future safe utilization. Employing an individual sensor to detect dual gases at room temperature may contribute to the miniaturization of sensors prototypes, however, remains challenging. Here, nanoarchitectures (NAs) of palladium (Pd) and poly-3, 4-ethylenedioxythiophene (PEDOT) self-assembling upon multi-wall carbon nanotubes (Pd&PEDOTCNTs) have been constructed via ultrasound-assisted redox. Such strategy achieves uniform PEDOT layer and the well-dispersed Pd nanoparticles (NPs) with sub-nanometer interface gaps upon CNTs. Benefitting from the unique nanostructures, the Pd&PEDOT@CNTs NAs exhibit the resistance-decreasing response to 0.2–40 v/v% H2, and the resistance-increasing one to 0.5 ppm - 30 v/v% NH3 at room temperature, respectively. Meanwhile, a principal component analysis (PCA) is conducted to understand the discrimination toward H2 and NH3, and such dual sensing displays 30 days long-term stability towards H2 and NH3. Theoretically, the dual sensing is ascribed to that the volume expansion of PdHx reduces the interface gaps among the Pd NPs and their conductivity; while a neutral polymer backbone is generated in PEDOT exposed in NH3 for elevating the resistivity. Our strategy could be employed to other dual-target gases detection in future miniaturized sensors prototypes. |
abstractGer |
Hydrogen (H2) and ammonia (NH3) are both promising clean energy carriers, and timely detecting their leakage will guarantee future safe utilization. Employing an individual sensor to detect dual gases at room temperature may contribute to the miniaturization of sensors prototypes, however, remains challenging. Here, nanoarchitectures (NAs) of palladium (Pd) and poly-3, 4-ethylenedioxythiophene (PEDOT) self-assembling upon multi-wall carbon nanotubes (Pd&PEDOTCNTs) have been constructed via ultrasound-assisted redox. Such strategy achieves uniform PEDOT layer and the well-dispersed Pd nanoparticles (NPs) with sub-nanometer interface gaps upon CNTs. Benefitting from the unique nanostructures, the Pd&PEDOT@CNTs NAs exhibit the resistance-decreasing response to 0.2–40 v/v% H2, and the resistance-increasing one to 0.5 ppm - 30 v/v% NH3 at room temperature, respectively. Meanwhile, a principal component analysis (PCA) is conducted to understand the discrimination toward H2 and NH3, and such dual sensing displays 30 days long-term stability towards H2 and NH3. Theoretically, the dual sensing is ascribed to that the volume expansion of PdHx reduces the interface gaps among the Pd NPs and their conductivity; while a neutral polymer backbone is generated in PEDOT exposed in NH3 for elevating the resistivity. Our strategy could be employed to other dual-target gases detection in future miniaturized sensors prototypes. |
abstract_unstemmed |
Hydrogen (H2) and ammonia (NH3) are both promising clean energy carriers, and timely detecting their leakage will guarantee future safe utilization. Employing an individual sensor to detect dual gases at room temperature may contribute to the miniaturization of sensors prototypes, however, remains challenging. Here, nanoarchitectures (NAs) of palladium (Pd) and poly-3, 4-ethylenedioxythiophene (PEDOT) self-assembling upon multi-wall carbon nanotubes (Pd&PEDOTCNTs) have been constructed via ultrasound-assisted redox. Such strategy achieves uniform PEDOT layer and the well-dispersed Pd nanoparticles (NPs) with sub-nanometer interface gaps upon CNTs. Benefitting from the unique nanostructures, the Pd&PEDOT@CNTs NAs exhibit the resistance-decreasing response to 0.2–40 v/v% H2, and the resistance-increasing one to 0.5 ppm - 30 v/v% NH3 at room temperature, respectively. Meanwhile, a principal component analysis (PCA) is conducted to understand the discrimination toward H2 and NH3, and such dual sensing displays 30 days long-term stability towards H2 and NH3. Theoretically, the dual sensing is ascribed to that the volume expansion of PdHx reduces the interface gaps among the Pd NPs and their conductivity; while a neutral polymer backbone is generated in PEDOT exposed in NH3 for elevating the resistivity. Our strategy could be employed to other dual-target gases detection in future miniaturized sensors prototypes. |
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