Design and preparation of high-surface-area Cu/ZnO/Al2O3 catalysts using a modified co-precipitation method for the water-gas shift reaction
- Authors
- Budiman, Adeline; Ridwan, Muhammad; Kim, Sung Min; Choi, Jae-Wook; Yoon, Chang Won; Ha, Jeong-Myeong; Suh, Dong Jin; Suh, Young-Woong
- Issue Date
- Jul-2013
- Publisher
- ELSEVIER
- Keywords
- Cu/ZnO/Al2O3; Water-gas shift; Co-precipitation; Aurichalcite; Ethylene glycol
- Citation
- APPLIED CATALYSIS A-GENERAL, v.462, pp.220 - 226
- Indexed
- SCIE
SCOPUS
- Journal Title
- APPLIED CATALYSIS A-GENERAL
- Volume
- 462
- Start Page
- 220
- End Page
- 226
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/162437
- DOI
- 10.1016/j.apcata.2013.05.010
- ISSN
- 0926-860X
- Abstract
- Highly dispersed Cu/ZnO/Al2O3 catalysts were prepared by modifying a conventional co-precipitation method. By manipulating the preparation conditions, in this case solvent, precipitating temperature, and pH, a Cu surface area of 45.5 +/- 1.7 m(2)/g was prepared, which was much greater than the surface area of 11.4-31.7 m(2)/g obtained by the conventional co-precipitation method and seemed to be the largest Cu surface area ever reported in the literature. The preparation of catalysts with a high Cu surface area was attributed to the formation of aurichalcite, a complex containing Cu and Zn. The catalysts prepared by the modified co-precipitation method were used for a water-gas shift reaction, exhibiting higher catalytic activity compared to those prepared by the conventional co-precipitation method.
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