Effect of precipitation on physico-chemical and catalytic properties of Cu-Zn-Al catalyst for water-gas shift reaction

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

Research output: Contribution to journalArticle

Abstract

To investigate the effect of precipitation on physico-chemical and catalytic properties of Cu-Zn-Al catalyst, the pH value and injection rate in the precipitation process were systematically changed, and the water-gas shift reaction was carried out. The Cu-Zn-Al catalyst showed the highest CO conversion when the optimized synthesis parameters (i.e., pH=10-10.5 and injection rate=30 ml/min) were employed. This is mainly due to the enhanced physicochemical properties such as a high Brunauer-Emmett-Teller surface area, small crystallite size, high Cu dispersion, and easier reducibility.

Original languageEnglish
Pages (from-to)1243-1248
Number of pages6
JournalKorean Journal of Chemical Engineering
Volume36
Issue number8
DOIs
Publication statusPublished - 2019 Aug 1

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Water gas shift
Catalysts
Carbon Monoxide
Crystallite size

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Na, Hyun Suk ; Ahn, Seon Yong ; Shim, Jae Oh ; Jeon, Kyung Won ; Kim, Hak Min ; Lee, Yeol Lim ; Jang, Won Jun ; Jeon, Byong Hun ; Roh, Hyun Seog. / Effect of precipitation on physico-chemical and catalytic properties of Cu-Zn-Al catalyst for water-gas shift reaction. In: Korean Journal of Chemical Engineering. 2019 ; Vol. 36, No. 8. pp. 1243-1248.
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Effect of precipitation on physico-chemical and catalytic properties of Cu-Zn-Al catalyst for water-gas shift reaction. / Na, Hyun Suk; Ahn, Seon Yong; Shim, Jae Oh; Jeon, Kyung Won; Kim, Hak Min; Lee, Yeol Lim; Jang, Won Jun; Jeon, Byong Hun; Roh, Hyun Seog.

In: Korean Journal of Chemical Engineering, Vol. 36, No. 8, 01.08.2019, p. 1243-1248.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Effect of precipitation on physico-chemical and catalytic properties of Cu-Zn-Al catalyst for water-gas shift reaction

AU - Na, Hyun Suk

AU - Ahn, Seon Yong

AU - Shim, Jae Oh

AU - Jeon, Kyung Won

AU - Kim, Hak Min

AU - Lee, Yeol Lim

AU - Jang, Won Jun

AU - Jeon, Byong Hun

AU - Roh, Hyun Seog

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AB - To investigate the effect of precipitation on physico-chemical and catalytic properties of Cu-Zn-Al catalyst, the pH value and injection rate in the precipitation process were systematically changed, and the water-gas shift reaction was carried out. The Cu-Zn-Al catalyst showed the highest CO conversion when the optimized synthesis parameters (i.e., pH=10-10.5 and injection rate=30 ml/min) were employed. This is mainly due to the enhanced physicochemical properties such as a high Brunauer-Emmett-Teller surface area, small crystallite size, high Cu dispersion, and easier reducibility.

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