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

doi:10.1016/j.cattod.2019.11.017

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

Division of Environmental Engineering

Research output: Contribution to journal › Article › peer-review

32 Citations (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 language	English
Pages (from-to)	166-174
Number of pages	9
Journal	Catalysis Today
Volume	352
DOIs	https://doi.org/10.1016/j.cattod.2019.11.017
Publication status	Published - 2020 Aug 1

Bibliographical note

Funding Information:
This work was conducted under the framework of research and development program of the Korea Institute of Energy Research ( B7-2424 ).

Publisher Copyright:
© 2019 Elsevier B.V.

All Science Journal Classification (ASJC) codes

Catalysis
Chemistry(all)

Access to Document

10.1016/j.cattod.2019.11.017

Cite this

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

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.",

author = "Ahn, {Seon Yong} and Na, {Hyun Suk} and Jeon, {Kyung Won} and Lee, {Yeol Lim} and Kim, {Kyoung Jin} and Shim, {Jae Oh} and Roh, {Hyun Seog}",

note = "Funding Information: This work was conducted under the framework of research and development program of the Korea Institute of Energy Research ( B7-2424 ). Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

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AU - Ahn, Seon Yong

AU - Na, Hyun Suk

AU - Jeon, Kyung Won

AU - Lee, Yeol Lim

AU - Kim, Kyoung Jin

AU - Shim, Jae Oh

AU - Roh, Hyun Seog

N1 - Funding Information: This work was conducted under the framework of research and development program of the Korea Institute of Energy Research ( B7-2424 ). Publisher Copyright: © 2019 Elsevier B.V.

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AB - 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.

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