A novel Ir/CeO2-C nanoparticle electrocatalyst for the hydrogen oxidation reaction of alkaline anion exchange membrane fuel cells

doi:10.1039/c7ra03675b

	A novel Ir/CeO2-C nanoparticle electrocatalyst for the hydrogen oxidation reaction of alkaline anion exchange membrane fuel cells
	Qin, Bowen 1,2; Yu, Hongmei 2; Chi, Jun 1,2; Jia, Jia 1,2; Gao, Xueqiang 1,2; Yao, Dewei 1,2; Yi, Baolian 2; Shao, Zhigang 2
刊名	RSC ADVANCES
	2017
卷号	7 页码:31574-31581
DOI	10.1039/c7ra03675b
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
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/152130]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100039, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell Syst & Engn Grp, Zhongshan Rd 457, Dalian 116023, Peoples R China
推荐引用方式 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.