Defect and pyridinic nitrogen engineering of carbon-based metal-free nanomaterial toward oxygen reduction
Defect and N-activated electronic engineering are of paramount importance for developing highly active carbon-based electrocatalysts toward oxygen reduction reaction (ORR) because the binding affinity of the carbon matrix can be efficiently tuned and thus promote the electrocatalytic activity. Herei...
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sg-ntu-dr.10356-1395352020-06-01T10:01:47Z Defect and pyridinic nitrogen engineering of carbon-based metal-free nanomaterial toward oxygen reduction Zhang, Jian Sun, Yuanmiao Zhu, Jiawei Kou, Zongkui Hu, Pei Liu, Lei Li, Shuzhou Mu, Shichun Huang, Yunhui School of Materials Science & Engineering Engineering::Materials Electrocatalysts Oxygen Reduction Defect and N-activated electronic engineering are of paramount importance for developing highly active carbon-based electrocatalysts toward oxygen reduction reaction (ORR) because the binding affinity of the carbon matrix can be efficiently tuned and thus promote the electrocatalytic activity. Herein, we present a facile and general strategy for fabricating pyridinic-N dominated and defect-enriched graphene-like nanocarbon material (ND-GLC) involving in-situ alkaline activation of cellulose and ammonia injection. The ND-GLC material has a superior and enhanced ORR activity and stability compared to commercial Pt/C catalyst in both rotating disk electrode measurements and Zn-air battery applications. Experimental and theoretical studies describe that the high electrocatalytic activity of ND-GLC mainly originates from the synergetic effect of edges/defects and pyridinic-N dopants. Importantly, our concept is demonstrated to be universal for other carbon-based nanomaterials (i.e., graphite nanoplates, carbon nanotubes, carbon nanospheres, graphene nanosheets). 2020-05-20T04:34:53Z 2020-05-20T04:34:53Z 2018 Journal Article Zhang, J., Sun, Y., Zhu, J., Kou, Z., Hu, P., Liu, L., . . . Huang, Y. (2018). Defect and pyridinic nitrogen engineering of carbon-based metal-free nanomaterial toward oxygen reduction. Nano Energy, 52, 307-314. doi:10.1016/j.nanoen.2018.08.003 2211-2855 https://hdl.handle.net/10356/139535 10.1016/j.nanoen.2018.08.003 2-s2.0-85051054899 52 307 314 en Nano Energy © 2018 Elsevier Ltd. All rights reserved. |
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Engineering::Materials Electrocatalysts Oxygen Reduction Zhang, Jian Sun, Yuanmiao Zhu, Jiawei Kou, Zongkui Hu, Pei Liu, Lei Li, Shuzhou Mu, Shichun Huang, Yunhui Defect and pyridinic nitrogen engineering of carbon-based metal-free nanomaterial toward oxygen reduction |
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Defect and N-activated electronic engineering are of paramount importance for developing highly active carbon-based electrocatalysts toward oxygen reduction reaction (ORR) because the binding affinity of the carbon matrix can be efficiently tuned and thus promote the electrocatalytic activity. Herein, we present a facile and general strategy for fabricating pyridinic-N dominated and defect-enriched graphene-like nanocarbon material (ND-GLC) involving in-situ alkaline activation of cellulose and ammonia injection. The ND-GLC material has a superior and enhanced ORR activity and stability compared to commercial Pt/C catalyst in both rotating disk electrode measurements and Zn-air battery applications. Experimental and theoretical studies describe that the high electrocatalytic activity of ND-GLC mainly originates from the synergetic effect of edges/defects and pyridinic-N dopants. Importantly, our concept is demonstrated to be universal for other carbon-based nanomaterials (i.e., graphite nanoplates, carbon nanotubes, carbon nanospheres, graphene nanosheets). |
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School of Materials Science & Engineering |
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School of Materials Science & Engineering Zhang, Jian Sun, Yuanmiao Zhu, Jiawei Kou, Zongkui Hu, Pei Liu, Lei Li, Shuzhou Mu, Shichun Huang, Yunhui |
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Zhang, Jian Sun, Yuanmiao Zhu, Jiawei Kou, Zongkui Hu, Pei Liu, Lei Li, Shuzhou Mu, Shichun Huang, Yunhui |
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Zhang, Jian |
title |
Defect and pyridinic nitrogen engineering of carbon-based metal-free nanomaterial toward oxygen reduction |
title_short |
Defect and pyridinic nitrogen engineering of carbon-based metal-free nanomaterial toward oxygen reduction |
title_full |
Defect and pyridinic nitrogen engineering of carbon-based metal-free nanomaterial toward oxygen reduction |
title_fullStr |
Defect and pyridinic nitrogen engineering of carbon-based metal-free nanomaterial toward oxygen reduction |
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Defect and pyridinic nitrogen engineering of carbon-based metal-free nanomaterial toward oxygen reduction |
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defect and pyridinic nitrogen engineering of carbon-based metal-free nanomaterial toward oxygen reduction |
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2020 |
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https://hdl.handle.net/10356/139535 |
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1681058016082788352 |