Carbon dioxide reforming of methane over co-precipitated Ni-CeO 2, Ni-ZrO2 and Ni-Ce-ZrO2 catalysts

Hyun Seog Roh; H. S. Potdar; Ki Won Jun

doi:10.1016/j.cattod.2004.05.012

Carbon dioxide reforming of methane over co-precipitated Ni-CeO ₂, Ni-ZrO₂ and Ni-Ce-ZrO₂ catalysts

Hyun Seog Roh, H. S. Potdar, Ki Won Jun

Division of Environmental Engineering

Research output: Contribution to journal › Conference article › peer-review

159 Citations (Scopus)

Abstract

A co-precipitation method was employed to prepare nickel oxide dispersed on CeO₂, ZrO₂ and cubic Ce_0.8Zr _0.2O₂ support to obtain catalysts useful for carbon dioxide reforming of methane reaction. The Ni-CeO₂ and Ni-Ce-ZrO ₂ catalysts showed relatively high activity and stability, while the Ni-ZrO₂ catalyst deactivated in the initial stage of the reaction due to serious carbon formation. The co-precipitated Ni-Ce-ZrO₂ catalyst exhibited the highest catalytic activity (CH₄ conversion >97% at 800°C) among the catalysts tested and the activity was maintained without significant loss during the reaction for 100h. The enhanced catalytic activity and stability of the co-precipitated Ni-Ce-ZrO₂ catalyst is attributed to the combination of nano-crystalline nature of cubic Ce _0.8Zr_0.2O₂ support and finely dispersed nano-sized NiO_x crystallites resulting in intimate contact between Ni and support, better Ni dispersion, higher Ni surface area and enhanced oxygen transfer during the reaction.

Original language	English
Pages (from-to)	39-44
Number of pages	6
Journal	Catalysis Today
Volume	93-95
DOIs	https://doi.org/10.1016/j.cattod.2004.05.012
Publication status	Published - 2004 Sep 1
Event	Selections from the Presentations of the 3rd Asia-Pacific Congress - Dalian, China Duration: 2003 Oct 12 → 2003 Oct 12

All Science Journal Classification (ASJC) codes

Catalysis
Chemistry(all)

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title = "Carbon dioxide reforming of methane over co-precipitated Ni-CeO 2, Ni-ZrO2 and Ni-Ce-ZrO2 catalysts",

abstract = "A co-precipitation method was employed to prepare nickel oxide dispersed on CeO2, ZrO2 and cubic Ce0.8Zr 0.2O2 support to obtain catalysts useful for carbon dioxide reforming of methane reaction. The Ni-CeO2 and Ni-Ce-ZrO 2 catalysts showed relatively high activity and stability, while the Ni-ZrO2 catalyst deactivated in the initial stage of the reaction due to serious carbon formation. The co-precipitated Ni-Ce-ZrO2 catalyst exhibited the highest catalytic activity (CH4 conversion >97% at 800°C) among the catalysts tested and the activity was maintained without significant loss during the reaction for 100h. The enhanced catalytic activity and stability of the co-precipitated Ni-Ce-ZrO2 catalyst is attributed to the combination of nano-crystalline nature of cubic Ce 0.8Zr0.2O2 support and finely dispersed nano-sized NiOx crystallites resulting in intimate contact between Ni and support, better Ni dispersion, higher Ni surface area and enhanced oxygen transfer during the reaction.",

author = "Roh, {Hyun Seog} and Potdar, {H. S.} and Jun, {Ki Won}",

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T1 - Carbon dioxide reforming of methane over co-precipitated Ni-CeO 2, Ni-ZrO2 and Ni-Ce-ZrO2 catalysts

AU - Roh, Hyun Seog

AU - Potdar, H. S.

AU - Jun, Ki Won

PY - 2004/9/1

Y1 - 2004/9/1

N2 - A co-precipitation method was employed to prepare nickel oxide dispersed on CeO2, ZrO2 and cubic Ce0.8Zr 0.2O2 support to obtain catalysts useful for carbon dioxide reforming of methane reaction. The Ni-CeO2 and Ni-Ce-ZrO 2 catalysts showed relatively high activity and stability, while the Ni-ZrO2 catalyst deactivated in the initial stage of the reaction due to serious carbon formation. The co-precipitated Ni-Ce-ZrO2 catalyst exhibited the highest catalytic activity (CH4 conversion >97% at 800°C) among the catalysts tested and the activity was maintained without significant loss during the reaction for 100h. The enhanced catalytic activity and stability of the co-precipitated Ni-Ce-ZrO2 catalyst is attributed to the combination of nano-crystalline nature of cubic Ce 0.8Zr0.2O2 support and finely dispersed nano-sized NiOx crystallites resulting in intimate contact between Ni and support, better Ni dispersion, higher Ni surface area and enhanced oxygen transfer during the reaction.

AB - A co-precipitation method was employed to prepare nickel oxide dispersed on CeO2, ZrO2 and cubic Ce0.8Zr 0.2O2 support to obtain catalysts useful for carbon dioxide reforming of methane reaction. The Ni-CeO2 and Ni-Ce-ZrO 2 catalysts showed relatively high activity and stability, while the Ni-ZrO2 catalyst deactivated in the initial stage of the reaction due to serious carbon formation. The co-precipitated Ni-Ce-ZrO2 catalyst exhibited the highest catalytic activity (CH4 conversion >97% at 800°C) among the catalysts tested and the activity was maintained without significant loss during the reaction for 100h. The enhanced catalytic activity and stability of the co-precipitated Ni-Ce-ZrO2 catalyst is attributed to the combination of nano-crystalline nature of cubic Ce 0.8Zr0.2O2 support and finely dispersed nano-sized NiOx crystallites resulting in intimate contact between Ni and support, better Ni dispersion, higher Ni surface area and enhanced oxygen transfer during the reaction.

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JO - Catalysis Today

JF - Catalysis Today

SN - 0920-5861

T2 - Selections from the Presentations of the 3rd Asia-Pacific Congress

Y2 - 12 October 2003 through 12 October 2003

ER -

Carbon dioxide reforming of methane over co-precipitated Ni-CeO ₂, Ni-ZrO₂ and Ni-Ce-ZrO₂ catalysts

Abstract

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