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|Title:||Defect and pyridinic nitrogen engineering of carbon-based metal-free nanomaterial toward oxygen reduction||Authors:||Zhang, Jian
|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).||URI:||https://hdl.handle.net/10356/139535||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|
|Appears in Collections:||MSE Journal Articles|
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