Kim, Sung Ho Nam, Suk-Woo Lim, Tae-Hoon Lee, Ho-In 2024-01-20T23:05:29Z 2024-01-20T23:05:29Z 2021-09-03 2008-05-30 0926-3373 https://pubs.kist.re.kr/handle/201004/133479 An Ni metal catalyst manufactured by the tapecasting method for use as a structural catalyst did not exhibit catalytic activity for the carbon monoxide (CO) removal reaction. However, the catalyst pretreated by an oxidation and reduction process showed superior activity for CO removal via water-gas shift and methanation, resulting in a decrease of the CO concentration to below 1% in reformate gas. The catalytic activity was generated by the reorganization of the surface structure of Ni metal, and enhanced by surface oxygen intermediates such as Ni(OH)(2) and NiOOH promoted by NiO oxidized incompletely after the pretreatment. After the reorganization process induced by the pretreatment, the Ni metal on the surface was converted to active Ni and NiO which played the role of a promoter. (C) 2007 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV RESIDENTIAL PEMFCS CARBON-MONOXIDE METAL-CATALYSTS HYDROXYL-GROUPS FUEL PROCESSOR TEMPERATURE MECHANISM OXIDATION HYDROGEN NICKEL Effect of pretreatment on the activity of Ni catalyst for CO removal reaction by water-gas shift and methanation Article 10.1016/j.apcatb.2007.12.009 1 APPLIED CATALYSIS B-ENVIRONMENTAL, v.81, no.1-2, pp.97 - 104 APPLIED CATALYSIS B-ENVIRONMENTAL 81 1-2 97 104 scie scopus 000256603200010 2-s2.0-43049176184 Chemistry, Physical Engineering, Environmental Engineering, Chemical Chemistry Engineering Article RESIDENTIAL PEMFCS CARBON-MONOXIDE METAL-CATALYSTS HYDROXYL-GROUPS FUEL PROCESSOR TEMPERATURE MECHANISM OXIDATION HYDROGEN NICKEL fuel processor disk type carbon monoxide water-gas shift methanation