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2D Layered non-precious metal mesoporous electrocatalysts for enhanced oxygen reduction reaction
Huo, LL; Liu, BC; Zhang, G; Si, R; Liu, J; Zhang, J
2017
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
Volume5Issue:10Pages:4868-4878
Subtype期刊论文
AbstractRational design of inexpensive, highly active, and long-term stable non-precious metal electrocatalysts for oxygen reduction reaction (ORR) is of significant importance for large-scale applications of fuel cells in practice. In this paper, we report, for the first time, the construction of 2D layered mesoporous transition metal-nitrogen-doped carbon/nitrogen-doped graphene (meso-M-N-C/N-G, M = Fe, Co, and Ni) electrocatalysts using 4,4-bipyridine as the nitrogen and carbon source and mesoporous KIT-6/N-G generated by in situ formation of KIT-6 on graphene nanosheets as a template. The meso-Fe-N-C/N-G electrocatalyst showed super electrocatalytic performance for ORR. Excitingly, its catalytic activity and durability were superior to those of Pt/C, making it a good candidate as an ORR electrocatalyst in fuel cells. The results suggested that the outstanding electrocatalytic performance of the electrocatalysts could be attributed to the unique mesoporous structure, high surface area, ultrasmall size of Fe or FeOx nanocrystals embedded in 2D layered N-G nanosheets, excellent electron transportation, homogeneous distribution of high-density pyridinic N and graphitic N, graphitic C, and abundant metal active sites (Fe-N-x). The synthesis approach can be used as a versatile route toward the construction of various 2D layered graphene-based mesoporous materials.
DOI10.1039/c6ta10261a
Indexed BySCI
Language英语
WOS IDWOS:000396146900015
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/27237
Collection中科院上海应用物理研究所2011-2018年
Recommended Citation
GB/T 7714
Huo, LL,Liu, BC,Zhang, G,et al. 2D Layered non-precious metal mesoporous electrocatalysts for enhanced oxygen reduction reaction[J]. JOURNAL OF MATERIALS CHEMISTRY A,2017,5(10):4868-4878.
APA Huo, LL,Liu, BC,Zhang, G,Si, R,Liu, J,&Zhang, J.(2017).2D Layered non-precious metal mesoporous electrocatalysts for enhanced oxygen reduction reaction.JOURNAL OF MATERIALS CHEMISTRY A,5(10),4868-4878.
MLA Huo, LL,et al."2D Layered non-precious metal mesoporous electrocatalysts for enhanced oxygen reduction reaction".JOURNAL OF MATERIALS CHEMISTRY A 5.10(2017):4868-4878.
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