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, Hyunseog Roh

Research output: Contribution to journalArticle

3 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 languageEnglish
Pages (from-to)17718-17725
Number of pages8
JournalInternational Journal of Hydrogen Energy
Volume43
Issue number37
DOIs
Publication statusPublished - 2018 Sep 13

Fingerprint

Water gas shift
hydrogen production
Hydrogen production
Catalyst supports
Catalysts
shift
Catalyst activity
gases
water
Cerium compounds
catalysts
Temperature
catalytic activity
Metals
metals

All Science Journal Classification (ASJC) codes

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

Cite this

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, Hyunseog. / 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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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, Hyunseog.

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

Research output: Contribution to journalArticle

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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, Hyunseog

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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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