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Comparative Study on Nano-Sized 1 wt% Pt/Ce0.8Zr0.2O2 and 1 wt% Pt/Ce0.2Zr0.8O2 Catalysts for a Single Stage Water Gas Shift Reaction

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Abstract

A comparative study on nano-sized Pt/Ce0.8Zr0.2O2 and Pt/Ce0.2Zr0.8O2 catalysts in a single stage water gas shift (WGS) reaction was carried out. These catalysts were prepared by impregnating 1 wt% Pt on nano-sized cubic (Ce0.8Zr0.2O2) and tetragonal (Ce0.2Zr0.8O2) supports. Both catalysts have been applied to WGS under identical conditions to understand beneficial effect of cubic/tetragonal phases of Ce(1 − x)Zr(x)O2. 1 wt% Pt/Ce0.8Zr0.2O2 exhibited higher CO conversion than 1 wt% Pt/Ce0.2Zr0.8O2. In addition, 1 wt% Pt/Ce0.8Zr0.2O2 catalyst showed relatively stable activity with time on stream. The high activity/stability of 1 wt% Pt/Ce0.8Zr0.2O2 catalyst was correlated to its higher Pt dispersion and easier reducibility.

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Acknowledgments

This work was supported by the New and Renewable Energy Technology Development Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Knowledge Economy (2011T100200273). This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2010-0002521). This work is financially supported by Korea Ministry of Environment (MOE) as Human Resource Development Project for Energy from Waste and Recycling.

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  1. Department of Environmental Engineering, Yonsei University, 1 Yonseidae-gil, Wonju, Gangwon, 220-710, South Korea

    Dae-Woon Jeong, Hari S. Potdar & Hyun-Seog Roh

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  1. Dae-Woon Jeong
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  2. Hari S. Potdar
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  3. Hyun-Seog Roh
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Correspondence to Hyun-Seog Roh.

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Jeong, DW., Potdar, H.S. & Roh, HS. Comparative Study on Nano-Sized 1 wt% Pt/Ce0.8Zr0.2O2 and 1 wt% Pt/Ce0.2Zr0.8O2 Catalysts for a Single Stage Water Gas Shift Reaction. Catal Lett 142, 439–444 (2012). https://doi.org/10.1007/s10562-012-0786-4

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  • DOI: https://doi.org/10.1007/s10562-012-0786-4

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