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 journalArticlepeer-review

7 Citations (Scopus)

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

Bibliographical note

Funding Information:
This work was conducted under the framework of the research and development program of the Korea Institute of Energy Research (B7-2424). It was supported (in part) by the Yonsei University Research Fund of 2019.

Publisher Copyright:
© 2019, The Korean Institute of Chemical Engineers.

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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