The effect of titration time on the catalytic performance of Cu/CeO2 catalysts for water-gas shift reaction

Hyun Suk Na; Jae Oh Shim; Won Jun Jang; Kyung Won Jeon; Hak Min Kim; Yeol Lim Lee; Da We Lee; Seong Yeun Yoo; Jong Wook Bae; Chandrashekhar V. Rode; Hyun Seog Roh

doi:10.1016/j.cattod.2017.10.007

The effect of titration time on the catalytic performance of Cu/CeO₂ catalysts for water-gas shift reaction

Hyun Suk Na, Jae Oh Shim, Won Jun Jang, Kyung Won Jeon, Hak Min Kim, Yeol Lim Lee, Da We Lee, Seong Yeun Yoo, Jong Wook Bae, Chandrashekhar V. Rode, Hyun Seog Roh

Division of Environmental Engineering

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

18 Citations (Scopus)

Abstract

We herein report the preparation of ceria (CeO₂) via a simple precipitation method for use as a catalyst support in the water-gas shift (WGS) reaction. More specifically, we optimized the titration time required to obtain highly active CeO₂-supported catalysts for the WGS reaction. As such, Cu was employed as the active metal coupled with the CeO₂ support. Notably, the CeO₂–0 supported Cu catalyst (where the precipitant was immediately injected into a cerium nitrate solution) exhibited the highest CO conversion at a gas hourly space velocity of 36,050 h⁻¹. This high catalytic activity of the Cu/CeO₂–0 catalyst was mainly due to its high Brunauer-Emmett-Teller (BET) surface area, enhanced Cu dispersion, high number of oxygen vacancies, and enhanced reducibility.

Original language	English
Pages (from-to)	83-88
Number of pages	6
Journal	Catalysis Today
Volume	309
DOIs	https://doi.org/10.1016/j.cattod.2017.10.007
Publication status	Published - 2018 Jul 1

Bibliographical note

Funding Information:
This work was conducted under framework of the research and development program of the Korea Institute of Energy Research (B7-2424). This work was supported by National Research Foundation of Korea-Grant funded by the Korean Government ( 2016K1A3A1A19945429 ).

Publisher Copyright:
© 2017 Elsevier B.V.

All Science Journal Classification (ASJC) codes

Catalysis
Chemistry(all)

Access to Document

10.1016/j.cattod.2017.10.007

Cite this

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title = "The effect of titration time on the catalytic performance of Cu/CeO2 catalysts for water-gas shift reaction",

abstract = "We herein report the preparation of ceria (CeO2) via a simple precipitation method for use as a catalyst support in the water-gas shift (WGS) reaction. More specifically, we optimized the titration time required to obtain highly active CeO2-supported catalysts for the WGS reaction. As such, Cu was employed as the active metal coupled with the CeO2 support. Notably, the CeO2–0 supported Cu catalyst (where the precipitant was immediately injected into a cerium nitrate solution) exhibited the highest CO conversion at a gas hourly space velocity of 36,050 h−1. This high catalytic activity of the Cu/CeO2–0 catalyst was mainly due to its high Brunauer-Emmett-Teller (BET) surface area, enhanced Cu dispersion, high number of oxygen vacancies, and enhanced reducibility.",

author = "Na, {Hyun Suk} and Shim, {Jae Oh} and Jang, {Won Jun} and Jeon, {Kyung Won} and Kim, {Hak Min} and Lee, {Yeol Lim} and Lee, {Da We} and Yoo, {Seong Yeun} and Bae, {Jong Wook} and Rode, {Chandrashekhar V.} and Roh, {Hyun Seog}",

note = "Funding Information: This work was conducted under framework of the research and development program of the Korea Institute of Energy Research (B7-2424). This work was supported by National Research Foundation of Korea-Grant funded by the Korean Government ( 2016K1A3A1A19945429 ). Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2018",

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doi = "10.1016/j.cattod.2017.10.007",

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AU - Na, Hyun Suk

AU - Shim, Jae Oh

AU - Jang, Won Jun

AU - Jeon, Kyung Won

AU - Kim, Hak Min

AU - Lee, Yeol Lim

AU - Lee, Da We

AU - Yoo, Seong Yeun

AU - Bae, Jong Wook

AU - Rode, Chandrashekhar V.

AU - Roh, Hyun Seog

N1 - Funding Information: This work was conducted under framework of the research and development program of the Korea Institute of Energy Research (B7-2424). This work was supported by National Research Foundation of Korea-Grant funded by the Korean Government ( 2016K1A3A1A19945429 ). Publisher Copyright: © 2017 Elsevier B.V.

PY - 2018/7/1

Y1 - 2018/7/1

N2 - We herein report the preparation of ceria (CeO2) via a simple precipitation method for use as a catalyst support in the water-gas shift (WGS) reaction. More specifically, we optimized the titration time required to obtain highly active CeO2-supported catalysts for the WGS reaction. As such, Cu was employed as the active metal coupled with the CeO2 support. Notably, the CeO2–0 supported Cu catalyst (where the precipitant was immediately injected into a cerium nitrate solution) exhibited the highest CO conversion at a gas hourly space velocity of 36,050 h−1. This high catalytic activity of the Cu/CeO2–0 catalyst was mainly due to its high Brunauer-Emmett-Teller (BET) surface area, enhanced Cu dispersion, high number of oxygen vacancies, and enhanced reducibility.

AB - We herein report the preparation of ceria (CeO2) via a simple precipitation method for use as a catalyst support in the water-gas shift (WGS) reaction. More specifically, we optimized the titration time required to obtain highly active CeO2-supported catalysts for the WGS reaction. As such, Cu was employed as the active metal coupled with the CeO2 support. Notably, the CeO2–0 supported Cu catalyst (where the precipitant was immediately injected into a cerium nitrate solution) exhibited the highest CO conversion at a gas hourly space velocity of 36,050 h−1. This high catalytic activity of the Cu/CeO2–0 catalyst was mainly due to its high Brunauer-Emmett-Teller (BET) surface area, enhanced Cu dispersion, high number of oxygen vacancies, and enhanced reducibility.

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