Performance of spinel ferrite catalysts integrated with mesoporous Al2O3 in the high temperature water-gas shift reaction

Dae Woon Jeong; Ajay Jha; Won Jun Jang; Won Bi Han; Hyun Seog Roh

doi:10.1016/j.cej.2014.12.045

Performance of spinel ferrite catalysts integrated with mesoporous Al₂O₃ in the high temperature water-gas shift reaction

Dae Woon Jeong, Ajay Jha, Won Jun Jang, Won Bi Han, Hyun Seog Roh

Division of Environmental Engineering

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

26 Citations (Scopus)

Abstract

The present study focuses on the use of spinel ferrite (MFe₂O₄) catalysts (M=Ni, Co, Fe, or Cu) integrated with mesoporous alumina for the high temperature water-gas shift (WGS) reaction. Among these catalysts, copper ferrite integrated with mesoporous alumina exhibits outstanding performance. To optimize the Cu/Fe ratio in the copper ferrite catalyst, we prepared different Cu_xFe_(3-_x₎O₄-MA catalysts (x=0.5, 1.0, 1.5, 2.0, or 2.5) by varying the Cu/Fe mole ratio. Of the various Cu/Fe catalysts, the 1:1 mole ratio of Cu/Fe exhibited the highest CO conversion (84%) and 100% selectivity to CO₂ at a very high GHSV of 42,000h^-1. The improved performance of the catalyst is correlated with its easier reducibility.

Original language	English
Pages (from-to)	100-109
Number of pages	10
Journal	Chemical Engineering Journal
Volume	265
DOIs	https://doi.org/10.1016/j.cej.2014.12.045
Publication status	Published - 2015 Apr 1

All Science Journal Classification (ASJC) codes

Chemistry(all)
Environmental Chemistry
Chemical Engineering(all)
Industrial and Manufacturing Engineering

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title = "Performance of spinel ferrite catalysts integrated with mesoporous Al2O3 in the high temperature water-gas shift reaction",

abstract = "The present study focuses on the use of spinel ferrite (MFe2O4) catalysts (M=Ni, Co, Fe, or Cu) integrated with mesoporous alumina for the high temperature water-gas shift (WGS) reaction. Among these catalysts, copper ferrite integrated with mesoporous alumina exhibits outstanding performance. To optimize the Cu/Fe ratio in the copper ferrite catalyst, we prepared different CuxFe(3-x)O4-MA catalysts (x=0.5, 1.0, 1.5, 2.0, or 2.5) by varying the Cu/Fe mole ratio. Of the various Cu/Fe catalysts, the 1:1 mole ratio of Cu/Fe exhibited the highest CO conversion (84%) and 100% selectivity to CO2 at a very high GHSV of 42,000h-1. The improved performance of the catalyst is correlated with its easier reducibility.",

author = "Jeong, {Dae Woon} and Ajay Jha and Jang, {Won Jun} and Han, {Won Bi} and Roh, {Hyun Seog}",

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AU - Jeong, Dae Woon

AU - Jha, Ajay

AU - Jang, Won Jun

AU - Han, Won Bi

AU - Roh, Hyun Seog

PY - 2015/4/1

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N2 - The present study focuses on the use of spinel ferrite (MFe2O4) catalysts (M=Ni, Co, Fe, or Cu) integrated with mesoporous alumina for the high temperature water-gas shift (WGS) reaction. Among these catalysts, copper ferrite integrated with mesoporous alumina exhibits outstanding performance. To optimize the Cu/Fe ratio in the copper ferrite catalyst, we prepared different CuxFe(3-x)O4-MA catalysts (x=0.5, 1.0, 1.5, 2.0, or 2.5) by varying the Cu/Fe mole ratio. Of the various Cu/Fe catalysts, the 1:1 mole ratio of Cu/Fe exhibited the highest CO conversion (84%) and 100% selectivity to CO2 at a very high GHSV of 42,000h-1. The improved performance of the catalyst is correlated with its easier reducibility.

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