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Topics in Catalysis

Optimization of Cobalt Loading in Co–CeO2 Catalyst for the High Temperature Water–Gas Shift Reaction

  • 10-04-2017
  • Original Paper
Published in:
Authors
Yeol-Lim Lee
Ajay Jha
Won-Jun Jang
Jae-Oh Shim
Kyung-Won Jeon
Hyun-Suk Na
Hak-Min Kim
Da-We Lee
Seong-Yeun Yoo
Byong-Hun Jeon
Jong Wook Bae
Hyun-Seog Roh
Published in
Topics in Catalysis | Issue 9-11/2017

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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 (~38%). Among the prepared catalysts, 15% Co–CeO2 exhibited excellent catalytic activity in the temperature range of 350–550 °C without promoting the methanation reaction. In addition, this catalyst showed relatively stable activity for 50 h at 400 °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.

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previous article CO and CO2 Methanation Over Supported Cobalt Catalysts
next article N-Dodecane Autothermal Reforming Properties of Ni-Al Based Catalysts Prepared by Various Methods
Title
Optimization of Cobalt Loading in Co–CeO2 Catalyst for the High Temperature Water–Gas Shift Reaction
Authors
Yeol-Lim Lee
Ajay Jha
Won-Jun Jang
Jae-Oh Shim
Kyung-Won Jeon
Hyun-Suk Na
Hak-Min Kim
Da-We Lee
Seong-Yeun Yoo
Byong-Hun Jeon
Jong Wook Bae
Hyun-Seog Roh
Publication date
10-04-2017
Publisher
Springer US
Published in
Topics in Catalysis / Issue 9-11/2017
Print ISSN: 1022-5528
Electronic ISSN: 1572-9028
DOI
https://doi.org/10.1007/s11244-017-0776-2
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