Templated transformation of g-C3N4 nanosheets into nitrogen-doped hollow carbon sphere with tunable nitrogen-doping properties for application in Li-ions batteries
Fine control of nitrogen-doping in carbon materials is an urgent issue with great challenges for the applications in energy storage devices. In this work, nitrogen-doped hollow carbon spheres (NHCS) with tunable nitrogen-doping properties are synthesized by using graphitic carbon nitride (g-C3N4) na...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Tang, Yihua [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2020transfer abstract |
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| Schlagwörter: |
Nitrogen-doped carbon materials |
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| Umfang: |
10 |
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| Übergeordnetes Werk: |
Enthalten in: Dynamic patterns of open review process - Zhao, Zhi-Dan ELSEVIER, 2021, an international journal sponsored by the American Carbon Society, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:168 ; year:2020 ; day:30 ; month:10 ; pages:458-467 ; extent:10 |
| Links: |
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| DOI / URN: |
10.1016/j.carbon.2020.07.022 |
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| Katalog-ID: |
ELV051248433 |
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| 245 | 1 | 0 | |a Templated transformation of g-C3N4 nanosheets into nitrogen-doped hollow carbon sphere with tunable nitrogen-doping properties for application in Li-ions batteries |
| 264 | 1 | |c 2020transfer abstract | |
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| 520 | |a Fine control of nitrogen-doping in carbon materials is an urgent issue with great challenges for the applications in energy storage devices. In this work, nitrogen-doped hollow carbon spheres (NHCS) with tunable nitrogen-doping properties are synthesized by using graphitic carbon nitride (g-C3N4) nanosheets as precursor and Zinc powder as the template. A series of characterization techniques were performed to evidence the successful transformation of NHCS from g-C3N4. The nitrogen-doping level from 12.76 at.% to 27.82 at.% and the relative doping fractions of pyridinic-N, pyrrolic-N and graphitic-N for the g–C3N4–derived carbon materials can be easily tuned by controlling the synthetic temperatures. Serving as Li-ions battery anodes, the resultant NHCS delivers an acceptable initial discharge capacity of 1012.4 mAh g−1 under a current density of 0.1 A g−1 and a promising cycling stability (1064.5 mAh g−1 after 400 cycles) as well as an excellent rate performance (360 mAh g−1 at 10 A g−1). This work provides a facile gateway to synthesize high nitrogen-doped carbon materials applying to energy storage devices, from nitrogen-rich g-C3N4 precursor. | ||
| 520 | |a Fine control of nitrogen-doping in carbon materials is an urgent issue with great challenges for the applications in energy storage devices. In this work, nitrogen-doped hollow carbon spheres (NHCS) with tunable nitrogen-doping properties are synthesized by using graphitic carbon nitride (g-C3N4) nanosheets as precursor and Zinc powder as the template. A series of characterization techniques were performed to evidence the successful transformation of NHCS from g-C3N4. The nitrogen-doping level from 12.76 at.% to 27.82 at.% and the relative doping fractions of pyridinic-N, pyrrolic-N and graphitic-N for the g–C3N4–derived carbon materials can be easily tuned by controlling the synthetic temperatures. Serving as Li-ions battery anodes, the resultant NHCS delivers an acceptable initial discharge capacity of 1012.4 mAh g−1 under a current density of 0.1 A g−1 and a promising cycling stability (1064.5 mAh g−1 after 400 cycles) as well as an excellent rate performance (360 mAh g−1 at 10 A g−1). This work provides a facile gateway to synthesize high nitrogen-doped carbon materials applying to energy storage devices, from nitrogen-rich g-C3N4 precursor. | ||
| 650 | 7 | |a Nitrogen-doping level |2 Elsevier | |
| 650 | 7 | |a Nitrogen-doped carbon materials |2 Elsevier | |
| 650 | 7 | |a Graphitic carbon nitride (g-C3N4) |2 Elsevier | |
| 650 | 7 | |a Nitrogen-doping types |2 Elsevier | |
| 650 | 7 | |a Li-ions batteries |2 Elsevier | |
| 700 | 1 | |a Wang, Xiao |4 oth | |
| 700 | 1 | |a Chen, Jingjing |4 oth | |
| 700 | 1 | |a Wang, Xinxin |4 oth | |
| 700 | 1 | |a Wang, Dajian |4 oth | |
| 700 | 1 | |a Mao, Zhiyong |4 oth | |
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10.1016/j.carbon.2020.07.022 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001451.pica (DE-627)ELV051248433 (ELSEVIER)S0008-6223(20)30682-5 DE-627 ger DE-627 rakwb eng 500 VZ 33.25 bkl 31.00 bkl Tang, Yihua verfasserin aut Templated transformation of g-C3N4 nanosheets into nitrogen-doped hollow carbon sphere with tunable nitrogen-doping properties for application in Li-ions batteries 2020transfer abstract 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Fine control of nitrogen-doping in carbon materials is an urgent issue with great challenges for the applications in energy storage devices. In this work, nitrogen-doped hollow carbon spheres (NHCS) with tunable nitrogen-doping properties are synthesized by using graphitic carbon nitride (g-C3N4) nanosheets as precursor and Zinc powder as the template. A series of characterization techniques were performed to evidence the successful transformation of NHCS from g-C3N4. The nitrogen-doping level from 12.76 at.% to 27.82 at.% and the relative doping fractions of pyridinic-N, pyrrolic-N and graphitic-N for the g–C3N4–derived carbon materials can be easily tuned by controlling the synthetic temperatures. Serving as Li-ions battery anodes, the resultant NHCS delivers an acceptable initial discharge capacity of 1012.4 mAh g−1 under a current density of 0.1 A g−1 and a promising cycling stability (1064.5 mAh g−1 after 400 cycles) as well as an excellent rate performance (360 mAh g−1 at 10 A g−1). This work provides a facile gateway to synthesize high nitrogen-doped carbon materials applying to energy storage devices, from nitrogen-rich g-C3N4 precursor. Fine control of nitrogen-doping in carbon materials is an urgent issue with great challenges for the applications in energy storage devices. In this work, nitrogen-doped hollow carbon spheres (NHCS) with tunable nitrogen-doping properties are synthesized by using graphitic carbon nitride (g-C3N4) nanosheets as precursor and Zinc powder as the template. A series of characterization techniques were performed to evidence the successful transformation of NHCS from g-C3N4. The nitrogen-doping level from 12.76 at.% to 27.82 at.% and the relative doping fractions of pyridinic-N, pyrrolic-N and graphitic-N for the g–C3N4–derived carbon materials can be easily tuned by controlling the synthetic temperatures. Serving as Li-ions battery anodes, the resultant NHCS delivers an acceptable initial discharge capacity of 1012.4 mAh g−1 under a current density of 0.1 A g−1 and a promising cycling stability (1064.5 mAh g−1 after 400 cycles) as well as an excellent rate performance (360 mAh g−1 at 10 A g−1). This work provides a facile gateway to synthesize high nitrogen-doped carbon materials applying to energy storage devices, from nitrogen-rich g-C3N4 precursor. Nitrogen-doping level Elsevier Nitrogen-doped carbon materials Elsevier Graphitic carbon nitride (g-C3N4) Elsevier Nitrogen-doping types Elsevier Li-ions batteries Elsevier Wang, Xiao oth Chen, Jingjing oth Wang, Xinxin oth Wang, Dajian oth Mao, Zhiyong oth Enthalten in Elsevier Science Zhao, Zhi-Dan ELSEVIER Dynamic patterns of open review process 2021 an international journal sponsored by the American Carbon Society Amsterdam [u.a.] (DE-627)ELV006580718 volume:168 year:2020 day:30 month:10 pages:458-467 extent:10 https://doi.org/10.1016/j.carbon.2020.07.022 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-MAT 33.25 Thermodynamik statistische Physik VZ 31.00 Mathematik: Allgemeines VZ AR 168 2020 30 1030 458-467 10 |
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10.1016/j.carbon.2020.07.022 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001451.pica (DE-627)ELV051248433 (ELSEVIER)S0008-6223(20)30682-5 DE-627 ger DE-627 rakwb eng 500 VZ 33.25 bkl 31.00 bkl Tang, Yihua verfasserin aut Templated transformation of g-C3N4 nanosheets into nitrogen-doped hollow carbon sphere with tunable nitrogen-doping properties for application in Li-ions batteries 2020transfer abstract 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Fine control of nitrogen-doping in carbon materials is an urgent issue with great challenges for the applications in energy storage devices. In this work, nitrogen-doped hollow carbon spheres (NHCS) with tunable nitrogen-doping properties are synthesized by using graphitic carbon nitride (g-C3N4) nanosheets as precursor and Zinc powder as the template. A series of characterization techniques were performed to evidence the successful transformation of NHCS from g-C3N4. The nitrogen-doping level from 12.76 at.% to 27.82 at.% and the relative doping fractions of pyridinic-N, pyrrolic-N and graphitic-N for the g–C3N4–derived carbon materials can be easily tuned by controlling the synthetic temperatures. Serving as Li-ions battery anodes, the resultant NHCS delivers an acceptable initial discharge capacity of 1012.4 mAh g−1 under a current density of 0.1 A g−1 and a promising cycling stability (1064.5 mAh g−1 after 400 cycles) as well as an excellent rate performance (360 mAh g−1 at 10 A g−1). This work provides a facile gateway to synthesize high nitrogen-doped carbon materials applying to energy storage devices, from nitrogen-rich g-C3N4 precursor. Fine control of nitrogen-doping in carbon materials is an urgent issue with great challenges for the applications in energy storage devices. In this work, nitrogen-doped hollow carbon spheres (NHCS) with tunable nitrogen-doping properties are synthesized by using graphitic carbon nitride (g-C3N4) nanosheets as precursor and Zinc powder as the template. A series of characterization techniques were performed to evidence the successful transformation of NHCS from g-C3N4. The nitrogen-doping level from 12.76 at.% to 27.82 at.% and the relative doping fractions of pyridinic-N, pyrrolic-N and graphitic-N for the g–C3N4–derived carbon materials can be easily tuned by controlling the synthetic temperatures. Serving as Li-ions battery anodes, the resultant NHCS delivers an acceptable initial discharge capacity of 1012.4 mAh g−1 under a current density of 0.1 A g−1 and a promising cycling stability (1064.5 mAh g−1 after 400 cycles) as well as an excellent rate performance (360 mAh g−1 at 10 A g−1). This work provides a facile gateway to synthesize high nitrogen-doped carbon materials applying to energy storage devices, from nitrogen-rich g-C3N4 precursor. Nitrogen-doping level Elsevier Nitrogen-doped carbon materials Elsevier Graphitic carbon nitride (g-C3N4) Elsevier Nitrogen-doping types Elsevier Li-ions batteries Elsevier Wang, Xiao oth Chen, Jingjing oth Wang, Xinxin oth Wang, Dajian oth Mao, Zhiyong oth Enthalten in Elsevier Science Zhao, Zhi-Dan ELSEVIER Dynamic patterns of open review process 2021 an international journal sponsored by the American Carbon Society Amsterdam [u.a.] (DE-627)ELV006580718 volume:168 year:2020 day:30 month:10 pages:458-467 extent:10 https://doi.org/10.1016/j.carbon.2020.07.022 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-MAT 33.25 Thermodynamik statistische Physik VZ 31.00 Mathematik: Allgemeines VZ AR 168 2020 30 1030 458-467 10 |
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10.1016/j.carbon.2020.07.022 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001451.pica (DE-627)ELV051248433 (ELSEVIER)S0008-6223(20)30682-5 DE-627 ger DE-627 rakwb eng 500 VZ 33.25 bkl 31.00 bkl Tang, Yihua verfasserin aut Templated transformation of g-C3N4 nanosheets into nitrogen-doped hollow carbon sphere with tunable nitrogen-doping properties for application in Li-ions batteries 2020transfer abstract 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Fine control of nitrogen-doping in carbon materials is an urgent issue with great challenges for the applications in energy storage devices. In this work, nitrogen-doped hollow carbon spheres (NHCS) with tunable nitrogen-doping properties are synthesized by using graphitic carbon nitride (g-C3N4) nanosheets as precursor and Zinc powder as the template. A series of characterization techniques were performed to evidence the successful transformation of NHCS from g-C3N4. The nitrogen-doping level from 12.76 at.% to 27.82 at.% and the relative doping fractions of pyridinic-N, pyrrolic-N and graphitic-N for the g–C3N4–derived carbon materials can be easily tuned by controlling the synthetic temperatures. Serving as Li-ions battery anodes, the resultant NHCS delivers an acceptable initial discharge capacity of 1012.4 mAh g−1 under a current density of 0.1 A g−1 and a promising cycling stability (1064.5 mAh g−1 after 400 cycles) as well as an excellent rate performance (360 mAh g−1 at 10 A g−1). This work provides a facile gateway to synthesize high nitrogen-doped carbon materials applying to energy storage devices, from nitrogen-rich g-C3N4 precursor. Fine control of nitrogen-doping in carbon materials is an urgent issue with great challenges for the applications in energy storage devices. In this work, nitrogen-doped hollow carbon spheres (NHCS) with tunable nitrogen-doping properties are synthesized by using graphitic carbon nitride (g-C3N4) nanosheets as precursor and Zinc powder as the template. A series of characterization techniques were performed to evidence the successful transformation of NHCS from g-C3N4. The nitrogen-doping level from 12.76 at.% to 27.82 at.% and the relative doping fractions of pyridinic-N, pyrrolic-N and graphitic-N for the g–C3N4–derived carbon materials can be easily tuned by controlling the synthetic temperatures. Serving as Li-ions battery anodes, the resultant NHCS delivers an acceptable initial discharge capacity of 1012.4 mAh g−1 under a current density of 0.1 A g−1 and a promising cycling stability (1064.5 mAh g−1 after 400 cycles) as well as an excellent rate performance (360 mAh g−1 at 10 A g−1). This work provides a facile gateway to synthesize high nitrogen-doped carbon materials applying to energy storage devices, from nitrogen-rich g-C3N4 precursor. Nitrogen-doping level Elsevier Nitrogen-doped carbon materials Elsevier Graphitic carbon nitride (g-C3N4) Elsevier Nitrogen-doping types Elsevier Li-ions batteries Elsevier Wang, Xiao oth Chen, Jingjing oth Wang, Xinxin oth Wang, Dajian oth Mao, Zhiyong oth Enthalten in Elsevier Science Zhao, Zhi-Dan ELSEVIER Dynamic patterns of open review process 2021 an international journal sponsored by the American Carbon Society Amsterdam [u.a.] (DE-627)ELV006580718 volume:168 year:2020 day:30 month:10 pages:458-467 extent:10 https://doi.org/10.1016/j.carbon.2020.07.022 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-MAT 33.25 Thermodynamik statistische Physik VZ 31.00 Mathematik: Allgemeines VZ AR 168 2020 30 1030 458-467 10 |
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10.1016/j.carbon.2020.07.022 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001451.pica (DE-627)ELV051248433 (ELSEVIER)S0008-6223(20)30682-5 DE-627 ger DE-627 rakwb eng 500 VZ 33.25 bkl 31.00 bkl Tang, Yihua verfasserin aut Templated transformation of g-C3N4 nanosheets into nitrogen-doped hollow carbon sphere with tunable nitrogen-doping properties for application in Li-ions batteries 2020transfer abstract 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Fine control of nitrogen-doping in carbon materials is an urgent issue with great challenges for the applications in energy storage devices. In this work, nitrogen-doped hollow carbon spheres (NHCS) with tunable nitrogen-doping properties are synthesized by using graphitic carbon nitride (g-C3N4) nanosheets as precursor and Zinc powder as the template. A series of characterization techniques were performed to evidence the successful transformation of NHCS from g-C3N4. The nitrogen-doping level from 12.76 at.% to 27.82 at.% and the relative doping fractions of pyridinic-N, pyrrolic-N and graphitic-N for the g–C3N4–derived carbon materials can be easily tuned by controlling the synthetic temperatures. Serving as Li-ions battery anodes, the resultant NHCS delivers an acceptable initial discharge capacity of 1012.4 mAh g−1 under a current density of 0.1 A g−1 and a promising cycling stability (1064.5 mAh g−1 after 400 cycles) as well as an excellent rate performance (360 mAh g−1 at 10 A g−1). This work provides a facile gateway to synthesize high nitrogen-doped carbon materials applying to energy storage devices, from nitrogen-rich g-C3N4 precursor. Fine control of nitrogen-doping in carbon materials is an urgent issue with great challenges for the applications in energy storage devices. In this work, nitrogen-doped hollow carbon spheres (NHCS) with tunable nitrogen-doping properties are synthesized by using graphitic carbon nitride (g-C3N4) nanosheets as precursor and Zinc powder as the template. A series of characterization techniques were performed to evidence the successful transformation of NHCS from g-C3N4. The nitrogen-doping level from 12.76 at.% to 27.82 at.% and the relative doping fractions of pyridinic-N, pyrrolic-N and graphitic-N for the g–C3N4–derived carbon materials can be easily tuned by controlling the synthetic temperatures. Serving as Li-ions battery anodes, the resultant NHCS delivers an acceptable initial discharge capacity of 1012.4 mAh g−1 under a current density of 0.1 A g−1 and a promising cycling stability (1064.5 mAh g−1 after 400 cycles) as well as an excellent rate performance (360 mAh g−1 at 10 A g−1). This work provides a facile gateway to synthesize high nitrogen-doped carbon materials applying to energy storage devices, from nitrogen-rich g-C3N4 precursor. Nitrogen-doping level Elsevier Nitrogen-doped carbon materials Elsevier Graphitic carbon nitride (g-C3N4) Elsevier Nitrogen-doping types Elsevier Li-ions batteries Elsevier Wang, Xiao oth Chen, Jingjing oth Wang, Xinxin oth Wang, Dajian oth Mao, Zhiyong oth Enthalten in Elsevier Science Zhao, Zhi-Dan ELSEVIER Dynamic patterns of open review process 2021 an international journal sponsored by the American Carbon Society Amsterdam [u.a.] (DE-627)ELV006580718 volume:168 year:2020 day:30 month:10 pages:458-467 extent:10 https://doi.org/10.1016/j.carbon.2020.07.022 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-MAT 33.25 Thermodynamik statistische Physik VZ 31.00 Mathematik: Allgemeines VZ AR 168 2020 30 1030 458-467 10 |
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10.1016/j.carbon.2020.07.022 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001451.pica (DE-627)ELV051248433 (ELSEVIER)S0008-6223(20)30682-5 DE-627 ger DE-627 rakwb eng 500 VZ 33.25 bkl 31.00 bkl Tang, Yihua verfasserin aut Templated transformation of g-C3N4 nanosheets into nitrogen-doped hollow carbon sphere with tunable nitrogen-doping properties for application in Li-ions batteries 2020transfer abstract 10 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Fine control of nitrogen-doping in carbon materials is an urgent issue with great challenges for the applications in energy storage devices. In this work, nitrogen-doped hollow carbon spheres (NHCS) with tunable nitrogen-doping properties are synthesized by using graphitic carbon nitride (g-C3N4) nanosheets as precursor and Zinc powder as the template. A series of characterization techniques were performed to evidence the successful transformation of NHCS from g-C3N4. The nitrogen-doping level from 12.76 at.% to 27.82 at.% and the relative doping fractions of pyridinic-N, pyrrolic-N and graphitic-N for the g–C3N4–derived carbon materials can be easily tuned by controlling the synthetic temperatures. Serving as Li-ions battery anodes, the resultant NHCS delivers an acceptable initial discharge capacity of 1012.4 mAh g−1 under a current density of 0.1 A g−1 and a promising cycling stability (1064.5 mAh g−1 after 400 cycles) as well as an excellent rate performance (360 mAh g−1 at 10 A g−1). This work provides a facile gateway to synthesize high nitrogen-doped carbon materials applying to energy storage devices, from nitrogen-rich g-C3N4 precursor. Fine control of nitrogen-doping in carbon materials is an urgent issue with great challenges for the applications in energy storage devices. In this work, nitrogen-doped hollow carbon spheres (NHCS) with tunable nitrogen-doping properties are synthesized by using graphitic carbon nitride (g-C3N4) nanosheets as precursor and Zinc powder as the template. A series of characterization techniques were performed to evidence the successful transformation of NHCS from g-C3N4. The nitrogen-doping level from 12.76 at.% to 27.82 at.% and the relative doping fractions of pyridinic-N, pyrrolic-N and graphitic-N for the g–C3N4–derived carbon materials can be easily tuned by controlling the synthetic temperatures. Serving as Li-ions battery anodes, the resultant NHCS delivers an acceptable initial discharge capacity of 1012.4 mAh g−1 under a current density of 0.1 A g−1 and a promising cycling stability (1064.5 mAh g−1 after 400 cycles) as well as an excellent rate performance (360 mAh g−1 at 10 A g−1). This work provides a facile gateway to synthesize high nitrogen-doped carbon materials applying to energy storage devices, from nitrogen-rich g-C3N4 precursor. Nitrogen-doping level Elsevier Nitrogen-doped carbon materials Elsevier Graphitic carbon nitride (g-C3N4) Elsevier Nitrogen-doping types Elsevier Li-ions batteries Elsevier Wang, Xiao oth Chen, Jingjing oth Wang, Xinxin oth Wang, Dajian oth Mao, Zhiyong oth Enthalten in Elsevier Science Zhao, Zhi-Dan ELSEVIER Dynamic patterns of open review process 2021 an international journal sponsored by the American Carbon Society Amsterdam [u.a.] (DE-627)ELV006580718 volume:168 year:2020 day:30 month:10 pages:458-467 extent:10 https://doi.org/10.1016/j.carbon.2020.07.022 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OPC-MAT 33.25 Thermodynamik statistische Physik VZ 31.00 Mathematik: Allgemeines VZ AR 168 2020 30 1030 458-467 10 |
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templated transformation of g-c3n4 nanosheets into nitrogen-doped hollow carbon sphere with tunable nitrogen-doping properties for application in li-ions batteries |
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Templated transformation of g-C3N4 nanosheets into nitrogen-doped hollow carbon sphere with tunable nitrogen-doping properties for application in Li-ions batteries |
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Fine control of nitrogen-doping in carbon materials is an urgent issue with great challenges for the applications in energy storage devices. In this work, nitrogen-doped hollow carbon spheres (NHCS) with tunable nitrogen-doping properties are synthesized by using graphitic carbon nitride (g-C3N4) nanosheets as precursor and Zinc powder as the template. A series of characterization techniques were performed to evidence the successful transformation of NHCS from g-C3N4. The nitrogen-doping level from 12.76 at.% to 27.82 at.% and the relative doping fractions of pyridinic-N, pyrrolic-N and graphitic-N for the g–C3N4–derived carbon materials can be easily tuned by controlling the synthetic temperatures. Serving as Li-ions battery anodes, the resultant NHCS delivers an acceptable initial discharge capacity of 1012.4 mAh g−1 under a current density of 0.1 A g−1 and a promising cycling stability (1064.5 mAh g−1 after 400 cycles) as well as an excellent rate performance (360 mAh g−1 at 10 A g−1). This work provides a facile gateway to synthesize high nitrogen-doped carbon materials applying to energy storage devices, from nitrogen-rich g-C3N4 precursor. |
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Fine control of nitrogen-doping in carbon materials is an urgent issue with great challenges for the applications in energy storage devices. In this work, nitrogen-doped hollow carbon spheres (NHCS) with tunable nitrogen-doping properties are synthesized by using graphitic carbon nitride (g-C3N4) nanosheets as precursor and Zinc powder as the template. A series of characterization techniques were performed to evidence the successful transformation of NHCS from g-C3N4. The nitrogen-doping level from 12.76 at.% to 27.82 at.% and the relative doping fractions of pyridinic-N, pyrrolic-N and graphitic-N for the g–C3N4–derived carbon materials can be easily tuned by controlling the synthetic temperatures. Serving as Li-ions battery anodes, the resultant NHCS delivers an acceptable initial discharge capacity of 1012.4 mAh g−1 under a current density of 0.1 A g−1 and a promising cycling stability (1064.5 mAh g−1 after 400 cycles) as well as an excellent rate performance (360 mAh g−1 at 10 A g−1). This work provides a facile gateway to synthesize high nitrogen-doped carbon materials applying to energy storage devices, from nitrogen-rich g-C3N4 precursor. |
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Fine control of nitrogen-doping in carbon materials is an urgent issue with great challenges for the applications in energy storage devices. In this work, nitrogen-doped hollow carbon spheres (NHCS) with tunable nitrogen-doping properties are synthesized by using graphitic carbon nitride (g-C3N4) nanosheets as precursor and Zinc powder as the template. A series of characterization techniques were performed to evidence the successful transformation of NHCS from g-C3N4. The nitrogen-doping level from 12.76 at.% to 27.82 at.% and the relative doping fractions of pyridinic-N, pyrrolic-N and graphitic-N for the g–C3N4–derived carbon materials can be easily tuned by controlling the synthetic temperatures. Serving as Li-ions battery anodes, the resultant NHCS delivers an acceptable initial discharge capacity of 1012.4 mAh g−1 under a current density of 0.1 A g−1 and a promising cycling stability (1064.5 mAh g−1 after 400 cycles) as well as an excellent rate performance (360 mAh g−1 at 10 A g−1). This work provides a facile gateway to synthesize high nitrogen-doped carbon materials applying to energy storage devices, from nitrogen-rich g-C3N4 precursor. |
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Templated transformation of g-C3N4 nanosheets into nitrogen-doped hollow carbon sphere with tunable nitrogen-doping properties for application in Li-ions batteries |
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