Sulfur Tolerant LSCM-based Composite Cathode for High Temperature   Electrolysis/Co-electrolysis of H2O and CO2

doi:10.1002/fuce.201600189

CORC > 北京大学 > 工学院

	Sulfur Tolerant LSCM-based Composite Cathode for High Temperature Electrolysis/Co-electrolysis of H2O and CO2
	Lim, C. K. ; Liu, Q. ; Zhou, J. ; Sun, Q. ; Chan, S. H.
	2017
关键词	Co-electrolysis Flue Gas Application High-temperature Electrolyzer Solid Oxide Cell (SOC) Sulfur-tolerant Cathode OXIDE FUEL-CELLS ANODE MATERIALS HYDROGEN-PRODUCTION SOFC ANODE OXIDATION LA0.75SR0.25CR0.5MN0.5O3-DELTA PEROVSKITES PERFORMANCE ELECTRODES STEAM
DOI	10.1002/fuce.201600189
英文摘要	The cathode performance of various LSCM-based composites for high temperature H2O electrolysis has been studied by examining their electrochemical behavior under current loading using three-electrode electrolysis cells with Pt as counter and reference electrodes. Experimental results among pure LSCM, LSCM-GDC, LSCM-YSZ and LSCM-(GDC-YSZ) have shown that LSCM-GDC exhibits the highest H2O electrolysis performance. The ratio between LSCM and GDC is further optimized and it is shown that the LSCM-GDC with 50-50 wt.% for each component exhibits the highest performance. Benchmarking with a 60-40 wt.% Ni-YSZ cathode have shown that the optimized LSCM-GDC cathode exhibits better performance for H2O electrolysis with a lower area specific resistance. Under a cathodic current of -0.1 A cm(-2), the optimized LSCM-GDC cathode shows much slower degradation, about 10 times slower as compared to the Ni-YSZ cathode when exposed to 10 ppm of SO2 for up to 72h. All the above electrochemical tests have been conducted at 800 degrees C and 70/30 pH(2)O/pH(2). Without the use of reducing agent, the optimized LSCM-GDC cathode also shows promising performance for co-electrolysis of H2O and CO2 at high current densities and stable performance with 5 ppm of SO2 in the feedstock gas.; National Research Foundation (NRF), Prime Minister's Office, Singapore under its Campus for Research Excellence and Technological Enterprise (CREATE) programme; CPCI-S(ISTP); 4,SI; 464-472; 17
会议录	12th European Solid Oxide Fuel Cell and Solid Oxide Electrolyzer (SOFC and SOE) Forum
语种	英语
内容类型	会议论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/469668]
专题	工学院
推荐引用方式 GB/T 7714	Lim, C. K.,Liu, Q.,Zhou, J.,et al. Sulfur Tolerant LSCM-based Composite Cathode for High Temperature Electrolysis/Co-electrolysis of H2O and CO2[C]. 见:.