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Nitrogen-doped porous carbon derived from Fe-MIL nanocrystals as an electrocatalyst for efficient oxygen reduction
Yang, Limeng1,2; Bai, Yangzhi1,2; Zhang, Hongjie1,2; Geng, Jiangtao1; Shao, Zhigang1; Yi, Baolian1
刊名RSC ADVANCES
2017
DOI10.1039/c6ra27834e
7期:36页:22610-22618
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Multidisciplinary
研究领域[WOS]Chemistry
关键词[WOS]NONPRECIOUS METAL ELECTROCATALYSTS ; ENCAPSULATED IRON NANOPARTICLES ; ELECTROLYTE FUEL-CELLS ; HIGHLY EFFICIENT ; RECENT PROGRESS ; CATALYSTS ; GRAPHENE ; COMPOSITE ; FRAMEWORKS ; MECHANISM
英文摘要Exploring cheap and stable electrocatalysts to replace Pt for the oxygen reduction reaction (ORR) is now the key issue for the large-scale application of fuel cells. Herein, we report a novel mesoporous carbon material prepared by one-step pyrolysis of a dicyandiamide (DCD)-doped iron-based metal organic framework (MOF) compound-Materiaux de l'Institute Lavosier-101(Fe) (MIL-101(Fe)). The as-prepared nitrogen mesoporous carbon (MIL-5 DCD-800) is characterized by transmission electron microscopy (TEM), Xray powder diffraction (XRD), N-2 sorption isotherms and X-ray photoelectron spectroscopy. MIL-5 DCD-800 shows an onset potential of 1.08 V (vs. RHE) and a half-wave potential of 0.86 V (vs. RHE) in 0.1 M KOH, which are similar to those of commercial Pt/C (1.05 V@ 0.05 mA cm(-2)). Furthermore, the electrocatalyst also possesses a much better stability and resistance to methanol crossover than Pt/C. This excellent performance is attributable to the presence of pyridinic- and graphitic-N together with abundant Fe active sites that promotes the four-electron process in the ORR. High pore volume and appropriate mesopores boost the mass transfer and reactivity during electrocatalysis.
语种英语
WOS记录号WOS:000400157700075
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/152006
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, DICP, Dalian Natl Labs Clean Energy DNL, 457 Zhongshan Rd, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
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GB/T 7714
Yang, Limeng,Bai, Yangzhi,Zhang, Hongjie,et al. Nitrogen-doped porous carbon derived from Fe-MIL nanocrystals as an electrocatalyst for efficient oxygen reduction[J]. RSC ADVANCES,2017,7(36):22610-22618.
APA Yang, Limeng,Bai, Yangzhi,Zhang, Hongjie,Geng, Jiangtao,Shao, Zhigang,&Yi, Baolian.(2017).Nitrogen-doped porous carbon derived from Fe-MIL nanocrystals as an electrocatalyst for efficient oxygen reduction.RSC ADVANCES,7(36),22610-22618.
MLA Yang, Limeng,et al."Nitrogen-doped porous carbon derived from Fe-MIL nanocrystals as an electrocatalyst for efficient oxygen reduction".RSC ADVANCES 7.36(2017):22610-22618.
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