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Nitrogen-Doped Annealed Nanodiamonds with Varied sp(2)/sp(3) Ratio as Metal-Free Electrocatalyst for the Oxygen Reduction Reaction
Zhu, Yansong; Lin, Yangming; Zhang, Bingsen; Rong, Junfeng; Zong, Baoning; Su, Dang Sheng; dssu@imr.ac.cn
2015
Source PublicationCHEMCATCHEM
ISSN1867-3880
Volume7Issue:18Pages:2840-2845
AbstractNitrogen-doped nanocarbon materials as metal-free electrocatalysts for the oxygen reduction reaction (ORR) have attracted great attention, owing to their catalytic activity close to Pt/C in alkaline media. Annealed nanodiamonds (AND) possess a special structure, because we can finely control the carbon sp(2)/sp(3) ratio. This provides a good opportunity to study the relationship between ORR performance (activity and stability) and the special structure of AND. We have used nitrogen-doped annealed nanodiamonds (NAND) with varied carbon sp(2)/sp(3) ratio as metal-free electrocatalysts for ORR in alkaline media. NAND showed higher catalytic activity for ORR with higher content of sp(2) carbon and larger amount of nitrogen species present as pyridinic groups. More importantly, NAND displayed stability superior to other nitrogen-doped nanocarbon materials as a result of transformation of carbon from sp(3) to sp(2) during electrochemical cycling.
description.department[zhu, yansong ; lin, yangming ; zhang, bingsen ; su, dang sheng] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, liaoning, peoples r china ; [zhu, yansong] anshan normal univ, sch chem & life sci, anshan 114005, liaoning, peoples r china ; [rong, junfeng ; zong, baoning] res inst petr proc, beijing 100083, peoples r china
KeywordElectrocatalyst Nanodiamond Nitrogen-doped Oxygen Reduction Stability
Funding OrganizationMOST [2011CBA00504]; NSFC of China [21133010, 21203215, 51221264, 21261160487]; 'Strategic Priority Research Program' of the Chinese Academy of Sciences [XDA09030103]; Sinopec China [21203214]
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/75024
Collection中国科学院金属研究所
Corresponding Authordssu@imr.ac.cn
Recommended Citation
GB/T 7714
Zhu, Yansong,Lin, Yangming,Zhang, Bingsen,et al. Nitrogen-Doped Annealed Nanodiamonds with Varied sp(2)/sp(3) Ratio as Metal-Free Electrocatalyst for the Oxygen Reduction Reaction[J]. CHEMCATCHEM,2015,7(18):2840-2845.
APA Zhu, Yansong.,Lin, Yangming.,Zhang, Bingsen.,Rong, Junfeng.,Zong, Baoning.,...&dssu@imr.ac.cn.(2015).Nitrogen-Doped Annealed Nanodiamonds with Varied sp(2)/sp(3) Ratio as Metal-Free Electrocatalyst for the Oxygen Reduction Reaction.CHEMCATCHEM,7(18),2840-2845.
MLA Zhu, Yansong,et al."Nitrogen-Doped Annealed Nanodiamonds with Varied sp(2)/sp(3) Ratio as Metal-Free Electrocatalyst for the Oxygen Reduction Reaction".CHEMCATCHEM 7.18(2015):2840-2845.
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