Effect of Pore Structure on Cu/Ce-Mesoporous Silica Catalysts for the Preferential Oxidation of CO
Introduction A promising fuel cell technology currently under rapid development for various applications is the polymer electrolyte membrane fuel cell (PEMFC) fueled with hydrogen. Hydrogen can be produced through reforming of liquid fuels or natural gas. The reformate gases contain about 50％ H2, 20％ CO2, 0.5–1％ CO, 10％ H2O and N2. The PEMFC anode will be poisoned by CO at levels of 10–100 ppm. As a result, carbon monoxide must be reduced to below these levels. An effective route for the removal of CO is the preferential oxidation (PROX) of CO in H2. Ceria is one of the most commonly used supports for Cu nanoparticles in CO oxidation. We are interested in meso-porous silicas are thought to be particularly useful as carriers or matrices for functional molecules or nano-particles because of their high thermal and chemical stability. Here we have explored the use of Ce-meso porous silicas as a matrix for the formation of thermally stable nano-sized Cu metal particles and the using of the composite as CO-oxidation catalyst.
Jae-Woo Park Jong-Su Lee Suk-Jin Choung
Chemical Eng. College of Engineering, Kyung Hee University, Yongin-Si, Gyeonggi-Do, 446-701, Korea Ordeg Co., Ltd, Tech. Center, ＃404, Mognae-Dong, Danwon-Gu, Ansan-Si, Gyeonggi-Do, 425-100, Korea
国际会议
6th International Conference on Environmental Catalysis(第六届国际环境催化大会 ICEC 2010)
北京
英文
166-166
2010-09-12（万方平台首次上网日期，不代表论文的发表时间）