Effect of precipitation sequence on physicochemical properties of CeO2 support for hydrogen production from low-temperature water-gas shift reaction

Hyun Suk Na; Jae Oh Shim; Seon Yong Ahn; Won Jun Jang; Kyung Won Jeon; Hak Min Kim; Yeol Lim Lee; Kyoung Jin Kim; Hyun Seog Roh

doi:10.1016/j.ijhydene.2018.08.009

Effect of precipitation sequence on physicochemical properties of CeO₂ support for hydrogen production from low-temperature water-gas shift reaction

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

Division of Environmental Engineering

Research output: Contribution to journal › Article

6 Citations (Scopus)

Abstract

A one-step reverse precipitation method has been developed to prepare nano-sized ceria (CeO₂) support with controlled physicochemical properties for low temperature water-gas shift (LT-WGS) reaction. The nano-sized CeO₂ support prepared by reverse precipitation method has a high Brunauer-Emmett-Teller (BET) surface area of 162.8 m²/g. To compare catalytic activity with that of CeO₂ prepared by normal precipitation method, 5 wt% Cu was employed as the active metal, coupled to the CeO₂ support. The catalytic activity of CeO₂ supported Cu catalyst prepared by reverse precipitation method was evaluated for the first time in LT-WGS reaction. Notably, the CeO₂ – R supported Cu catalyst, prepared by reverse precipitation method, showed higher CO conversion and turnover frequency (TOF) values than CeO₂–N supported Cu catalyst prepared by normal precipitation method.

Original language	English
Pages (from-to)	17718-17725
Number of pages	8
Journal	International Journal of Hydrogen Energy
Volume	43
Issue number	37
DOIs	https://doi.org/10.1016/j.ijhydene.2018.08.009
Publication status	Published - 2018 Sep 13

All Science Journal Classification (ASJC) codes

Renewable Energy, Sustainability and the Environment
Fuel Technology
Condensed Matter Physics
Energy Engineering and Power Technology

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Na, H. S., Shim, J. O., Ahn, S. Y., Jang, W. J., Jeon, K. W., Kim, H. M., Lee, Y. L., Kim, K. J., & Roh, H. S. (2018). Effect of precipitation sequence on physicochemical properties of CeO₂ support for hydrogen production from low-temperature water-gas shift reaction. International Journal of Hydrogen Energy, 43(37), 17718-17725. https://doi.org/10.1016/j.ijhydene.2018.08.009

Na, Hyun Suk ; Shim, Jae Oh ; Ahn, Seon Yong ; Jang, Won Jun ; Jeon, Kyung Won ; Kim, Hak Min ; Lee, Yeol Lim ; Kim, Kyoung Jin ; Roh, Hyun Seog. / Effect of precipitation sequence on physicochemical properties of CeO₂ support for hydrogen production from low-temperature water-gas shift reaction. In: International Journal of Hydrogen Energy. 2018 ; Vol. 43, No. 37. pp. 17718-17725.

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title = "Effect of precipitation sequence on physicochemical properties of CeO2 support for hydrogen production from low-temperature water-gas shift reaction",

abstract = "A one-step reverse precipitation method has been developed to prepare nano-sized ceria (CeO2) support with controlled physicochemical properties for low temperature water-gas shift (LT-WGS) reaction. The nano-sized CeO2 support prepared by reverse precipitation method has a high Brunauer-Emmett-Teller (BET) surface area of 162.8 m2/g. To compare catalytic activity with that of CeO2 prepared by normal precipitation method, 5 wt% Cu was employed as the active metal, coupled to the CeO2 support. The catalytic activity of CeO2 supported Cu catalyst prepared by reverse precipitation method was evaluated for the first time in LT-WGS reaction. Notably, the CeO2 – R supported Cu catalyst, prepared by reverse precipitation method, showed higher CO conversion and turnover frequency (TOF) values than CeO2–N supported Cu catalyst prepared by normal precipitation method.",

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

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Effect of precipitation sequence on physicochemical properties of CeO₂ support for hydrogen production from low-temperature water-gas shift reaction. / Na, Hyun Suk; Shim, Jae Oh; Ahn, Seon Yong; Jang, Won Jun; Jeon, Kyung Won; Kim, Hak Min; Lee, Yeol Lim; Kim, Kyoung Jin; Roh, Hyun Seog.

In: International Journal of Hydrogen Energy, Vol. 43, No. 37, 13.09.2018, p. 17718-17725.

Research output: Contribution to journal › Article

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T1 - Effect of precipitation sequence on physicochemical properties of CeO2 support for hydrogen production from low-temperature water-gas shift reaction

AU - Na, Hyun Suk

AU - Shim, Jae Oh

AU - Ahn, Seon Yong

AU - Jang, Won Jun

AU - Jeon, Kyung Won

AU - Kim, Hak Min

AU - Lee, Yeol Lim

AU - Kim, Kyoung Jin

AU - Roh, Hyun Seog

PY - 2018/9/13

Y1 - 2018/9/13

N2 - A one-step reverse precipitation method has been developed to prepare nano-sized ceria (CeO2) support with controlled physicochemical properties for low temperature water-gas shift (LT-WGS) reaction. The nano-sized CeO2 support prepared by reverse precipitation method has a high Brunauer-Emmett-Teller (BET) surface area of 162.8 m2/g. To compare catalytic activity with that of CeO2 prepared by normal precipitation method, 5 wt% Cu was employed as the active metal, coupled to the CeO2 support. The catalytic activity of CeO2 supported Cu catalyst prepared by reverse precipitation method was evaluated for the first time in LT-WGS reaction. Notably, the CeO2 – R supported Cu catalyst, prepared by reverse precipitation method, showed higher CO conversion and turnover frequency (TOF) values than CeO2–N supported Cu catalyst prepared by normal precipitation method.

AB - A one-step reverse precipitation method has been developed to prepare nano-sized ceria (CeO2) support with controlled physicochemical properties for low temperature water-gas shift (LT-WGS) reaction. The nano-sized CeO2 support prepared by reverse precipitation method has a high Brunauer-Emmett-Teller (BET) surface area of 162.8 m2/g. To compare catalytic activity with that of CeO2 prepared by normal precipitation method, 5 wt% Cu was employed as the active metal, coupled to the CeO2 support. The catalytic activity of CeO2 supported Cu catalyst prepared by reverse precipitation method was evaluated for the first time in LT-WGS reaction. Notably, the CeO2 – R supported Cu catalyst, prepared by reverse precipitation method, showed higher CO conversion and turnover frequency (TOF) values than CeO2–N supported Cu catalyst prepared by normal precipitation method.

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