An important parameter for synthesis of Al2O3 supported Cu-Zn catalysts in low-temperature water-gas shift reaction under practical reaction condition
- Authors
- Shim, Jae-Oh; Na, Hyun-Suk; Ahn, Seon-Yong; Jeon, Kyung-Won; Jang, Won-Jun; Jeon, Byong Hun; Roh, Hyun-Seog
- Issue Date
- Jun-2019
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Aging time and temperature; Cu-Zn-Al; LT-WGS; Physical properties
- Citation
- INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, v.44, no.29, pp.14853 - 14860
- Indexed
- SCIE
SCOPUS
- Journal Title
- INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
- Volume
- 44
- Number
- 29
- Start Page
- 14853
- End Page
- 14860
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/147704
- DOI
- 10.1016/j.ijhydene.2019.04.042
- ISSN
- 0360-3199
- Abstract
- Herein, we investigated the effects of aging time and temperature on the performance of co-precipitation-prepared Cu-Zn-Al catalysts in the low-temperature water-gas shift (LT-WGS) reaction. The highest CO conversion within the employed temperature range as well as very stable activity over 200 h were observed for the catalyst prepared at 80 degrees C and aged for 72 h, which was ascribed to its high surface area and close-to-100% degree of CuO reduction. Conversely, catalysts aged at temperatures below 80 degrees C had poor physical properties, while aging for <72 h resulted in the formation of bulk copper oxide, which was hardly reduced under the low-temperature conditions.
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