Synthesis of highly active nano-sized (1 wt.% Pt/CeO 2) catalyst for water gas shift reaction in medium temperature application

Hyun Seog Roh; Hari S. Potdar; Dae Woon Jeong; Ki Sun Kim; Jae Oh Shim; Won Jun Jang; Kee Young Koo; Wang Lai Yoon

doi:10.1016/j.cattod.2011.10.016

Synthesis of highly active nano-sized (1 wt.% Pt/CeO ₂) catalyst for water gas shift reaction in medium temperature application

Hyun Seog Roh, Hari S. Potdar, Dae Woon Jeong, Ki Sun Kim, Jae Oh Shim, Won Jun Jang, Kee Young Koo, Wang Lai Yoon

Division of Environmental Engineering

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

46 Citations (Scopus)

Abstract

A simultaneous precipitation/digestion method has been developed to precipitate a crystalline cerium (III) carbonate (Ce ₂(CO ₃) ₃·8H ₂O) by a controlled reaction between aqueous solutions of Ce(NO ₃) ₃·6H ₂O and K ₂CO ₃ at room temperature. The nano-sized CeO ₂ supports with crystallite size of 8.0 nm and high surface area of 131.6 m ²/g were successfully prepared through a decomposition of a cerium (III) carbonate at 400°C for 4 h. The digestion time was optimized to get highly active 1 wt.% Pt/CeO ₂ catalyst for the water gas shift (WGS) reaction. 1 wt.% Pt/CeO ₂ catalyst exhibited the highest CO conversion (82%) and 100% selectivity to CO ₂ at 320°C at very high gas hourly space velocity (GHSV) of 45,625 h ^-1 if an optimized digestion time of 4 h was used for the synthesis of cerium (III) carbonate.

Original language	English
Pages (from-to)	113-118
Number of pages	6
Journal	Catalysis Today
Volume	185
Issue number	1
DOIs	https://doi.org/10.1016/j.cattod.2011.10.016
Publication status	Published - 2012 May 20

Bibliographical note

Funding Information:
This work was supported by the New & 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 ( 2008-N-HY08-P-01 ). 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 ).

All Science Journal Classification (ASJC) codes

Catalysis
Chemistry(all)

Access to Document

10.1016/j.cattod.2011.10.016

Cite this

@article{9afeeb8e80c646178b67ee04edd8f9a6,

title = "Synthesis of highly active nano-sized (1 wt.% Pt/CeO 2) catalyst for water gas shift reaction in medium temperature application",

abstract = "A simultaneous precipitation/digestion method has been developed to precipitate a crystalline cerium (III) carbonate (Ce 2(CO 3) 3·8H 2O) by a controlled reaction between aqueous solutions of Ce(NO 3) 3·6H 2O and K 2CO 3 at room temperature. The nano-sized CeO 2 supports with crystallite size of 8.0 nm and high surface area of 131.6 m 2/g were successfully prepared through a decomposition of a cerium (III) carbonate at 400°C for 4 h. The digestion time was optimized to get highly active 1 wt.% Pt/CeO 2 catalyst for the water gas shift (WGS) reaction. 1 wt.% Pt/CeO 2 catalyst exhibited the highest CO conversion (82%) and 100% selectivity to CO 2 at 320°C at very high gas hourly space velocity (GHSV) of 45,625 h -1 if an optimized digestion time of 4 h was used for the synthesis of cerium (III) carbonate.",

author = "Roh, {Hyun Seog} and Potdar, {Hari S.} and Jeong, {Dae Woon} and Kim, {Ki Sun} and Shim, {Jae Oh} and Jang, {Won Jun} and Koo, {Kee Young} and Yoon, {Wang Lai}",

note = "Funding Information: This work was supported by the New & 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 ( 2008-N-HY08-P-01 ). 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 ).",

year = "2012",

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doi = "10.1016/j.cattod.2011.10.016",

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AU - Roh, Hyun Seog

AU - Potdar, Hari S.

AU - Jeong, Dae Woon

AU - Kim, Ki Sun

AU - Shim, Jae Oh

AU - Jang, Won Jun

AU - Koo, Kee Young

AU - Yoon, Wang Lai

N1 - Funding Information: This work was supported by the New & 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 ( 2008-N-HY08-P-01 ). 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 ).

PY - 2012/5/20

Y1 - 2012/5/20

N2 - A simultaneous precipitation/digestion method has been developed to precipitate a crystalline cerium (III) carbonate (Ce 2(CO 3) 3·8H 2O) by a controlled reaction between aqueous solutions of Ce(NO 3) 3·6H 2O and K 2CO 3 at room temperature. The nano-sized CeO 2 supports with crystallite size of 8.0 nm and high surface area of 131.6 m 2/g were successfully prepared through a decomposition of a cerium (III) carbonate at 400°C for 4 h. The digestion time was optimized to get highly active 1 wt.% Pt/CeO 2 catalyst for the water gas shift (WGS) reaction. 1 wt.% Pt/CeO 2 catalyst exhibited the highest CO conversion (82%) and 100% selectivity to CO 2 at 320°C at very high gas hourly space velocity (GHSV) of 45,625 h -1 if an optimized digestion time of 4 h was used for the synthesis of cerium (III) carbonate.

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