Comparative study on nano-sized 1 wt% Pt/Ce 0.8Zr 0.2O 2 and 1 wt% Pt/Ce 0.2Zr 0.8O 2 catalysts for a single stage water gas shift reaction

Dae Woon Jeong; Hari S. Potdar; Hyun Seog Roh

doi:10.1007/s10562-012-0786-4

Comparative study on nano-sized 1 wt% Pt/Ce _0.8Zr _0.2O ₂ and 1 wt% Pt/Ce _0.2Zr _0.8O ₂ catalysts for a single stage water gas shift reaction

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

Division of Environmental Engineering

Research output: Contribution to journal › Article › peer-review

53 Citations (Scopus)

Abstract

A comparative study on nano-sized Pt/Ce _0.8 Zr _0.2O ₂ and Pt/Ce _0.2Zr _0.8O ₂ 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 (Ce _0.8 Zr _0.2O ₂) and tetragonal (Ce _0.2Zr _0.8O ₂) 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)O ₂. 1 wt% Pt/Ce _0.8 Zr _0.2O ₂ exhibited higher CO conversion than 1 wt% Pt/Ce _0.2Zr _0.8O ₂. In addition, 1 wt%Pt/Ce _0.8 Zr _0.2O ₂ catalyst showed relatively stable activity with time on stream. The high activity/stability of 1 wt% Pt/Ce _0.8 Zr _0.2O ₂ catalyst was correlated to its higher Pt dispersion and easier reducibility.

Original language	English
Pages (from-to)	439-444
Number of pages	6
Journal	Catalysis Letters
Volume	142
Issue number	4
DOIs	https://doi.org/10.1007/s10562-012-0786-4
Publication status	Published - 2012 Apr

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Catalysis
Chemistry(all)

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title = "Comparative study on nano-sized 1 wt% Pt/Ce 0.8Zr 0.2O 2 and 1 wt% Pt/Ce 0.2Zr 0.8O 2 catalysts for a single stage water gas shift reaction",

abstract = "A comparative study on nano-sized Pt/Ce 0.8 Zr 0.2O 2 and Pt/Ce 0.2Zr 0.8O 2 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 (Ce 0.8 Zr 0.2O 2) and tetragonal (Ce 0.2Zr 0.8O 2) 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)O 2. 1 wt% Pt/Ce 0.8 Zr 0.2O 2 exhibited higher CO conversion than 1 wt% Pt/Ce 0.2Zr 0.8O 2. In addition, 1 wt%Pt/Ce 0.8 Zr 0.2O 2 catalyst showed relatively stable activity with time on stream. The high activity/stability of 1 wt% Pt/Ce 0.8 Zr 0.2O 2 catalyst was correlated to its higher Pt dispersion and easier reducibility.",

author = "Jeong, {Dae Woon} and Potdar, {Hari S.} and Roh, {Hyun Seog}",

year = "2012",

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doi = "10.1007/s10562-012-0786-4",

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journal = "Catalysis Letters",

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AU - Jeong, Dae Woon

AU - Potdar, Hari S.

AU - Roh, Hyun Seog

PY - 2012/4

Y1 - 2012/4

N2 - A comparative study on nano-sized Pt/Ce 0.8 Zr 0.2O 2 and Pt/Ce 0.2Zr 0.8O 2 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 (Ce 0.8 Zr 0.2O 2) and tetragonal (Ce 0.2Zr 0.8O 2) 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)O 2. 1 wt% Pt/Ce 0.8 Zr 0.2O 2 exhibited higher CO conversion than 1 wt% Pt/Ce 0.2Zr 0.8O 2. In addition, 1 wt%Pt/Ce 0.8 Zr 0.2O 2 catalyst showed relatively stable activity with time on stream. The high activity/stability of 1 wt% Pt/Ce 0.8 Zr 0.2O 2 catalyst was correlated to its higher Pt dispersion and easier reducibility.

AB - A comparative study on nano-sized Pt/Ce 0.8 Zr 0.2O 2 and Pt/Ce 0.2Zr 0.8O 2 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 (Ce 0.8 Zr 0.2O 2) and tetragonal (Ce 0.2Zr 0.8O 2) 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)O 2. 1 wt% Pt/Ce 0.8 Zr 0.2O 2 exhibited higher CO conversion than 1 wt% Pt/Ce 0.2Zr 0.8O 2. In addition, 1 wt%Pt/Ce 0.8 Zr 0.2O 2 catalyst showed relatively stable activity with time on stream. The high activity/stability of 1 wt% Pt/Ce 0.8 Zr 0.2O 2 catalyst was correlated to its higher Pt dispersion and easier reducibility.

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Comparative study on nano-sized 1 wt% Pt/Ce _0.8Zr _0.2O ₂ and 1 wt% Pt/Ce _0.2Zr _0.8O ₂ catalysts for a single stage water gas shift reaction

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