Effect of preparation method on the oxygen vacancy concentration of CeO2-promoted Cu/γ-Al2O3 catalysts for HTS reactions

Jae Oh Shim, Hyun Suk Na, Ajay Jha, Won Jun Jang, Dae Woon Jeong, In Wook Nah, Byong Hun Jeon, Hyun Seog Roh

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

To investigate the effect of preparation method on the CeO2-promoted Cu/γ-Al2O3 catalyst for the high-temperature water gas shift reaction over simulated waste-derived synthesis gas, Ce/Cu/γ-Al2O3, Ce-Cu/γ-Al2O3, Cu/Ce/γ-Al2O3, and Cu/γ-Al2O3 catalysts were applied to the target reaction. Among the prepared catalysts, Ce/Cu/γ-Al2O3 showed the highest activity due to its high oxygen vacancy concentration and large amount of reduced Cu species, supported by XPS, Raman, and PL analysis. Additionally, TPR results showed that the catalyst preparation method effected the transformation of bulk CuO species to highly dispersed Cu-species, which influenced the catalyst activity.

Original languageEnglish
Pages (from-to)908-915
Number of pages8
JournalChemical Engineering Journal
Volume306
DOIs
Publication statusPublished - 2016 Dec 15

Fingerprint

Oxygen vacancies
catalyst
oxygen
Catalysts
Water gas shift
Synthesis gas
Catalyst activity
gas
X ray photoelectron spectroscopy
X-ray spectroscopy
effect
method
Temperature
water

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Environmental Chemistry
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

Cite this

Shim, Jae Oh ; Na, Hyun Suk ; Jha, Ajay ; Jang, Won Jun ; Jeong, Dae Woon ; Nah, In Wook ; Jeon, Byong Hun ; Roh, Hyun Seog. / Effect of preparation method on the oxygen vacancy concentration of CeO2-promoted Cu/γ-Al2O3 catalysts for HTS reactions. In: Chemical Engineering Journal. 2016 ; Vol. 306. pp. 908-915.
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Effect of preparation method on the oxygen vacancy concentration of CeO2-promoted Cu/γ-Al2O3 catalysts for HTS reactions. / Shim, Jae Oh; Na, Hyun Suk; Jha, Ajay; Jang, Won Jun; Jeong, Dae Woon; Nah, In Wook; Jeon, Byong Hun; Roh, Hyun Seog.

In: Chemical Engineering Journal, Vol. 306, 15.12.2016, p. 908-915.

Research output: Contribution to journalArticle

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T1 - Effect of preparation method on the oxygen vacancy concentration of CeO2-promoted Cu/γ-Al2O3 catalysts for HTS reactions

AU - Shim, Jae Oh

AU - Na, Hyun Suk

AU - Jha, Ajay

AU - Jang, Won Jun

AU - Jeong, Dae Woon

AU - Nah, In Wook

AU - Jeon, Byong Hun

AU - Roh, Hyun Seog

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