Effect of Cu/CeO2 catalyst preparation methods on their characteristics for low temperature water−gas shift reaction: A detailed study

Seon Yong Ahn, Hyun Suk Na, Kyung Won Jeon, Yeol Lim Lee, Kyoung Jin Kim, Jae Oh Shim, Hyun Seog Roh

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

To investigate the effect of Cu/CeO2 catalysts preparation methods for low temperature water−gas shift reaction, Cu/CeO2 catalysts were prepared with various impregnation sequences and applied to the water−gas shift reaction at a high gas hourly space velocity of 36,080 mL/g·h. The catalyst preparation method affected both the Cu−Ce synergistic effect and the physico−chemical properties of the Ce promoted Cu/CeO2 catalysts, such as specific surface area, Cu particle size, Cu dispersion, amount of active Cu species and oxygen vacancy concentration. Among the prepared catalysts, Cu–Ce/CeO2 showed the highest CO conversion because of the high contents of active Cu species and high concentration of oxygen vacancies.

Original languageEnglish
Pages (from-to)166-174
Number of pages9
JournalCatalysis Today
Volume352
DOIs
Publication statusPublished - 2020 Aug 1

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

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