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A novel Ir/CeO2-C nanoparticle electrocatalyst for the hydrogen oxidation reaction of alkaline anion exchange membrane fuel cells
Qin, Bowen1,2; Yu, Hongmei1; Chi, Jun1,2; Jia, Jia1,2; Gao, Xueqiang1,2; Yao, Dewei1,2; Yi, Baolian1; Shao, Zhigang1
刊名RSC ADVANCES
2017
DOI10.1039/c7ra03675b
7页:31574-31581
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]COATED COPPER NANOWIRES ; HIGH-PERFORMANCE ; ANODE CATALYST ; CARBON ; PLATINUM ; ELECTROLYTES ; CO ; ELECTROOXIDATION ; ELECTRODES ; KINETICS
英文摘要Alkaline anion exchange membrane fuel cells have faster kinetics for the oxygen reduction reaction (ORR) than proton exchange membrane fuel cells; however, the hydrogen oxidation reaction (HOR) at anodes with precious metals is more sluggish under alkaline conditions than that under acidic conditions, which hinders the further development of fuel cells. Herein, a novel catalyst, iridium nanoparticle-supported ceria-carbon black (10% Ir/CeO2-C), was developed for use in the hydrogen oxidation reaction (HOR) under basic conditions. Cyclic voltammetry reveals that the electrochemical surface area of 10% Ir/CeO2-C is 1.5 times that of 10% Ir/C. The RDE measurement suggests that the exchange current density of 10% Ir/CeO2-C is 2.4 times that of 10% Ir/C, and the mass activity and specific activity of 10% Ir/CeO2-C for HOR are greater than those of 10% Ir/C by 2.8 fold and 1.8 fold, respectively. The effective prevention of the agglomeration of the highly dispersed Ir nanoparticles could be ascribed to the strong metal-support interaction between Ir and CeO2, and the promoted electrocatalytic activity would benefit from the oxophilic effect due to the higher oxygen storage-release capacity of ceria. Thus, 10% Ir/CeO2-C would be a good candidate for use at the anode of alkaline anion exchange membrane fuel cells.
语种英语
WOS记录号WOS:000404076400051
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/152130
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell Syst & Engn Grp, Zhongshan Rd 457, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100039, Peoples R China
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GB/T 7714
Qin, Bowen,Yu, Hongmei,Chi, Jun,et al. A novel Ir/CeO2-C nanoparticle electrocatalyst for the hydrogen oxidation reaction of alkaline anion exchange membrane fuel cells[J]. RSC ADVANCES,2017,7:31574-31581.
APA Qin, Bowen.,Yu, Hongmei.,Chi, Jun.,Jia, Jia.,Gao, Xueqiang.,...&Shao, Zhigang.(2017).A novel Ir/CeO2-C nanoparticle electrocatalyst for the hydrogen oxidation reaction of alkaline anion exchange membrane fuel cells.RSC ADVANCES,7,31574-31581.
MLA Qin, Bowen,et al."A novel Ir/CeO2-C nanoparticle electrocatalyst for the hydrogen oxidation reaction of alkaline anion exchange membrane fuel cells".RSC ADVANCES 7(2017):31574-31581.
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