Optimization of Cobalt Loading in Co-CeO2 Catalyst for the High Temperature Water-Gas Shift Reaction
- Authors
- Lee, Yeol-Lim; Jha, Ajay; Jang, Won-Jun; Shim, Jae-Oh; Jeon, Kyung-Won; Na, Hyun-Suk; Kim, Hak-Min; Lee, Da-We; Yoo, Seong-Yeun; Jeon, Byong Hun; Bae, Jong Wook; Roh, Hyun-Seog
- Issue Date
- Jul-2017
- Publisher
- SPRINGER/PLENUM PUBLISHERS
- Keywords
- Water-gas shift reaction; Co-CeO2; Cobalt; loading; Dispersion
- Citation
- TOPICS IN CATALYSIS, v.60, no.9-11, pp.721 - 726
- Indexed
- SCIE
SCOPUS
- Journal Title
- TOPICS IN CATALYSIS
- Volume
- 60
- Number
- 9-11
- Start Page
- 721
- End Page
- 726
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/152027
- DOI
- 10.1007/s11244-017-0776-2
- ISSN
- 1022-5528
- Abstract
- We varied the cobalt loading (10, 15, 25, 35 wt%) to determine the optimum loading in a Co-CeO2 catalytic system used for the high temperature water-gas shift (WGS) reaction. Severe reaction conditions were used to compare the catalytic performances including a very high gas hourly space velocity (142,663 h(-1)) and a high CO concentration (similar to 38%). Among the prepared catalysts, 15% Co-CeO2 exhibited excellent catalytic activity in the temperature range of 350-550 degrees C without promoting the methanation reaction. In addition, this catalyst showed relatively stable activity for 50 h at 400 degrees C. The outstanding performance of 15% Co-CeO2 catalyst is mainly due to the highest amount of dispersed cobalt atoms on the catalyst surface. Additionally, the WGS activity was affected by the oxygen vacancy concentration.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 공과대학 > 서울 자원환경공학과 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/152027)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.