A novel catalyst coated membrane embedded with Cs-substituted phosphotungstates for proton exchange membrane water electrolysis

IMR OpenIR

	A novel catalyst coated membrane embedded with Cs-substituted phosphotungstates for proton exchange membrane water electrolysis
	G. Y. Liu; J. Y. Xu; Y. T. Wang; J. M. Jiang; X. D. Wang
	2014
发表期刊	International Journal of Hydrogen Energy
ISSN	0360-3199
卷号	39 期号:27 页码:14531-14539
摘要	Catalyst coated membrane (CCM) is the core component of proton exchange membrane (PEM) water electrolysis and the main place for electrochemical reaction and mass transfer. Its properties directly affect the performance of PEM water electrolysis. Aiming at decreasing the polarization loss and the ohmic loss, a novel CCM embedded with Cs(1.5)HPA in the skeleton of the Nafion (R) ionomer and the Nafion (R) membrane was prepared and possessed functionality of improved protonic conductivity. Meanwhile, the Cs(1.5)HPA-Nafion ionomer content in the catalyst layers was further optimized. The SEM, EDS and pore volume distribution measurement showed that the Cs(1.5)HPA embedded in the CCM without agglomeration and the micropore and mesopore were well distributed in the catalyst layer. Furthermore, CCMs were tested in a PEM water electrolyser at 80 degrees C, beneficial effects on both the Tafel slope and the iR loss were obtained due to the improved protonic conductivity as well as the appropriate pore structure and increased specific pore volume. The performance of the electrolyser cell was obviously improved with the novel CCM. The highest cell performance of 1.59 Vat 2 A cm(-2) was achieved at 80 degrees C. At 35 degrees C and 300 mA cm(-2), the cell showed good durability within the test period of up to 570 h. Copyright (c) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
部门归属	[liu, gaoyang ; wang, yituo ; jiang, juming ; wang, xindong] univ sci & technol beijing, state key lab adv met, beijing 100083, peoples r china. [liu, gaoyang ; wang, yituo ; jiang, juming ; wang, xindong] univ sci & technol beijing, dept phys chem, beijing 100083, peoples r china. [xu, junyuan] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. ; wang, xd (reprint author), univ sci & technol beijing, dept phys chem, 30 coll rd, beijing 100083, peoples r china. ; echem@ustb.edu.cn
关键词	Proton Exchange Membrane Water Electrolysis Catalyst Layer Proton Transport Mass Transport Proton Conducting Phosphotungstates Oxygen Evolution Reaction Doped Tin Oxides Fuel-cells Hydrogen-production Composite Membranes Supports Electrocatalysis Conductivity Technologies Performance
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73299
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	G. Y. Liu,J. Y. Xu,Y. T. Wang,et al. A novel catalyst coated membrane embedded with Cs-substituted phosphotungstates for proton exchange membrane water electrolysis[J]. International Journal of Hydrogen Energy,2014,39(27):14531-14539.
APA	G. Y. Liu,J. Y. Xu,Y. T. Wang,J. M. Jiang,&X. D. Wang.(2014).A novel catalyst coated membrane embedded with Cs-substituted phosphotungstates for proton exchange membrane water electrolysis.International Journal of Hydrogen Energy,39(27),14531-14539.
MLA	G. Y. Liu,et al."A novel catalyst coated membrane embedded with Cs-substituted phosphotungstates for proton exchange membrane water electrolysis".International Journal of Hydrogen Energy 39.27(2014):14531-14539.