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题名: Wormholelike mesoporous carbon supported PtRu catalysts toward methanol electrooxidation
作者: Liu, Weifeng1, 2;  Qin, Xiaoping2;  Zhang, Xiongfu1;  Shao, Zhigang2;  Yi, Baolian2
关键词: Wormholelike mesoporous carbon ;  PtRu catalyst ;  Pore diameter ;  Methanol electrooxidation
刊名: JOURNAL OF ENERGY CHEMISTRY
发表日期: 2017
DOI: 10.1016/j.jechem.2016.08.003
卷: 26, 页:200-206
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Energy & Fuels ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Energy & Fuels ;  Engineering
英文摘要: Wormholelike mesoporous carbons (WMCs) with three different pore diameters (D-P), namely WMC-F7 (D-p = 8.5 nm), WMC-F30 (D-p =4.4 nm), and WMC-F0 (D-p =3.1 nm) are prepared via a modified sol-gel process. Then PtRu nanoparticles with the particle size (40 of 3.2 nm supported on WMCs are synthesized with a modified pulse microwave-assisted polyol method. It is found that the pore diameter of WMCs plays an important role in the electrochemical activity of PtRu toward alcohol electrooxidation reaction. PtRu/WMC-F7 with D-p > 2d(pt) exhibits the largest electrochemical surface area (ESA) and the highest activity toward methanol electrooxidation. With the decrease in Dp, PtRu/WMC-F30 and PtRu/WMC-F0 have much lower ESA and electrochemical activity, especially for the isopropanol electrooxidation with a larger molecular size. When D-p is more than twice d(pt), the mass transfer of reactants and electrolyte are easier, and thus more PtRu nanoparticles can be utilized and the catalysts activity can be enhanced. (C) 2016 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press. All rights reserved.
关键词[WOS]: OXYGEN REDUCTION REACTION ;  FUEL-CELLS ;  OXIDATION ;  ELECTROCATALYST
语种: 英语
WOS记录号: WOS:000401302600026
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/152311
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Dalian Univ Technol, Sch Chem Engn, State Key Lab Fine Chem, Dalian 116024, Liaoning, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China

Recommended Citation:
Liu, Weifeng,Qin, Xiaoping,Zhang, Xiongfu,et al. Wormholelike mesoporous carbon supported PtRu catalysts toward methanol electrooxidation[J]. JOURNAL OF ENERGY CHEMISTRY,2017,26:200-206.
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