Highly Active and Stable Pt-Loaded Ce0.75Zr0.25O2 Yolk-Shell Catalyst for Water-Gas Shift Reaction

Jae Oh Shim, Young Jun Hong, Hyun Suk Na, Won Jun Jang, Yun Chan Kang, Hyun Seog Roh

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Multishelled, Pt-loaded Ce0.75Zr0.25O2 yolk-shell microspheres were prepared by a simple spray pyrolysis process for use in the water-gas shift (WGS) reaction. The Pt-loading was optimized, obtaining highly active Pt/Ce0.75Zr0.25O2 yolk-shell nanostructures for the WGS. Of the prepared catalysts, a 2% Pt loading of the Ce0.75Zr0.25O2 yolk-shell microspheres showed the highest CO conversion. The high catalytic activity of the 2% Pt/Ce0.75Zr0.2O2 catalyst was mainly due to its easier reducibility and the maintenance of active catalytic Pt species. The Pt-loaded Ce0.75Zr0.25O2 catalyst microspheres were highly resistant to Pt sintering because of their unique yolk-shell structure. Spray pyrolysis was found to be highly efficient for the production of precious-metal-loaded, multicomponent metal oxide yolk-shell microspheres for catalytic applications.

Original languageEnglish
Pages (from-to)17239-17244
Number of pages6
JournalACS Applied Materials and Interfaces
Volume8
Issue number27
DOIs
Publication statusPublished - 2016 Jul 13

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Water gas shift
Microspheres
Catalysts
Spray pyrolysis
Carbon Monoxide
Precious metals
Oxides
Nanostructures
Catalyst activity
Sintering
Metals

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Cite this

Shim, Jae Oh ; Hong, Young Jun ; Na, Hyun Suk ; Jang, Won Jun ; Kang, Yun Chan ; Roh, Hyun Seog. / Highly Active and Stable Pt-Loaded Ce0.75Zr0.25O2 Yolk-Shell Catalyst for Water-Gas Shift Reaction. In: ACS Applied Materials and Interfaces. 2016 ; Vol. 8, No. 27. pp. 17239-17244.
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Highly Active and Stable Pt-Loaded Ce0.75Zr0.25O2 Yolk-Shell Catalyst for Water-Gas Shift Reaction. / Shim, Jae Oh; Hong, Young Jun; Na, Hyun Suk; Jang, Won Jun; Kang, Yun Chan; Roh, Hyun Seog.

In: ACS Applied Materials and Interfaces, Vol. 8, No. 27, 13.07.2016, p. 17239-17244.

Research output: Contribution to journalArticle

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AU - Kang, Yun Chan

AU - Roh, Hyun Seog

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