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One-Step Synthesis of W2C@N,P-C Nanocatalysts for Efficient Hydrogen Electrooxidation across the Whole pH Range
Xiong, Bingyan; Zhao, Wenbin; Chen, Lisong; Shi, Jianlin
2019-08-01
Source PublicationADVANCED FUNCTIONAL MATERIALS
ISSN1616-301X
Volume29Issue:31
SubtypeArticle
AbstractHighly active and low-cost non-noble metal electrocatalysts for hydrogen oxidation reaction (HOR) are crucial for the large-scale applications of fuel cells, which, unfortunately, are rarely documented up to now. Here, a facile one-step strategy to fabricate W2C nanoparticles (approximate to 3 nm) encased in N, P-doped few layer carbon materials (W2C@N,P-C, WNPC) as an efficient non-noble metal HOR electrocatalyst simply by calcining the mixture of recrystallized phosphotungstic acid and dicyandiamide is reported. The obtained WNPC catalyst shows extraordinarily high HOR activities (1.03/0.91/0.84 mA cm(-2) at 0.05 V vs reversible hydrogen electrode in 0.1 m HClO4/0.1 m KOH/0.1 m neutral phosphate buffered saline electrolytes, respectively), excellent durability during accelerated degradation tests for 10 000 cycles, and outstanding CO tolerance. These high performances are attributed to the uniform structure of WNPC, and more essentially, the synergistic effect among N, P, and C species which elevates the reducibility of WNPC, favoring the generation of abundant HOR active sites.
Keywordelectrocatalysts hydrogen oxidation reaction non-noble-metal one-step calcining method W2C nanoparticles
DOI10.1002/adfm.201902505
Language英语
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/26936
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Xiong, Bingyan,Zhao, Wenbin,Chen, Lisong,et al. One-Step Synthesis of W2C@N,P-C Nanocatalysts for Efficient Hydrogen Electrooxidation across the Whole pH Range[J]. ADVANCED FUNCTIONAL MATERIALS,2019,29(31).
APA Xiong, Bingyan,Zhao, Wenbin,Chen, Lisong,&Shi, Jianlin.(2019).One-Step Synthesis of W2C@N,P-C Nanocatalysts for Efficient Hydrogen Electrooxidation across the Whole pH Range.ADVANCED FUNCTIONAL MATERIALS,29(31).
MLA Xiong, Bingyan,et al."One-Step Synthesis of W2C@N,P-C Nanocatalysts for Efficient Hydrogen Electrooxidation across the Whole pH Range".ADVANCED FUNCTIONAL MATERIALS 29.31(2019).
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