An important parameter for synthesis of Al2O3 supported Cu-Zn catalysts in low-temperature water-gas shift reaction under practical reaction condition

Jae Oh Shim, Hyun Suk Na, Seon Yong Ahn, Kyung Won Jeon, Won Jun Jang, Byong Hun Jeon, Hyun Seog Roh

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Herein, we investigated the effects of aging time and temperature on the performance of co-precipitation–prepared Cu-Zn-Al catalysts in the low-temperature water-gas shift (LT-WGS)reaction. The highest CO conversion within the employed temperature range as well as very stable activity over 200 h were observed for the catalyst prepared at 80 °C and aged for 72 h, which was ascribed to its high surface area and close-to-100% degree of CuO reduction. Conversely, catalysts aged at temperatures below 80 °C had poor physical properties, while aging for <72 h resulted in the formation of bulk copper oxide, which was hardly reduced under the low-temperature conditions.

Original languageEnglish
Pages (from-to)14853-14860
Number of pages8
JournalInternational Journal of Hydrogen Energy
Volume44
Issue number29
DOIs
Publication statusPublished - 2019 Jun 7

Fingerprint

Water gas shift
catalysts
Catalysts
shift
synthesis
gases
water
copper oxides
Temperature
Aging of materials
temperature
physical properties
Copper oxides
Physical properties

All Science Journal Classification (ASJC) codes

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

Cite this

Shim, Jae Oh ; Na, Hyun Suk ; Ahn, Seon Yong ; Jeon, Kyung Won ; Jang, Won Jun ; Jeon, Byong Hun ; Roh, Hyun Seog. / An important parameter for synthesis of Al2O3 supported Cu-Zn catalysts in low-temperature water-gas shift reaction under practical reaction condition. In: International Journal of Hydrogen Energy. 2019 ; Vol. 44, No. 29. pp. 14853-14860.
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An important parameter for synthesis of Al2O3 supported Cu-Zn catalysts in low-temperature water-gas shift reaction under practical reaction condition. / Shim, Jae Oh; Na, Hyun Suk; Ahn, Seon Yong; Jeon, Kyung Won; Jang, Won Jun; Jeon, Byong Hun; Roh, Hyun Seog.

In: International Journal of Hydrogen Energy, Vol. 44, No. 29, 07.06.2019, p. 14853-14860.

Research output: Contribution to journalArticle

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AU - Shim, Jae Oh

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AU - Jeon, Kyung Won

AU - Jang, Won Jun

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AU - Roh, Hyun Seog

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AB - Herein, we investigated the effects of aging time and temperature on the performance of co-precipitation–prepared Cu-Zn-Al catalysts in the low-temperature water-gas shift (LT-WGS)reaction. The highest CO conversion within the employed temperature range as well as very stable activity over 200 h were observed for the catalyst prepared at 80 °C and aged for 72 h, which was ascribed to its high surface area and close-to-100% degree of CuO reduction. Conversely, catalysts aged at temperatures below 80 °C had poor physical properties, while aging for <72 h resulted in the formation of bulk copper oxide, which was hardly reduced under the low-temperature conditions.

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