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Title: Defect and pyridinic nitrogen engineering of carbon-based metal-free nanomaterial toward oxygen reduction
Authors: Zhang, Jian
Sun, Yuanmiao
Zhu, Jiawei
Kou, Zongkui
Hu, Pei
Liu, Lei
Li, Shuzhou
Mu, Shichun
Huang, Yunhui
Keywords: Engineering::Materials
Issue Date: 2018
Source: 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
Journal: Nano Energy
Abstract: 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).
ISSN: 2211-2855
DOI: 10.1016/j.nanoen.2018.08.003
Rights: © 2018 Elsevier Ltd. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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