Effect of NiAl2O4 Formation on Ni/Al2O3 Stability during Dry Reforming of Methane

Lu Zhou; Lidong Li; Nini Wei; Jun Li; Jean-Marie Basset

doi:10.1002/cctc.201500379

Effect of NiAl2O4 Formation on Ni/Al2O3 Stability during Dry Reforming of Methane

Lu Zhou, Lidong Li, Nini Wei, Jun Li, Jean-Marie Basset

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221 Scopus citations

Abstract

A series of alumina-supported Ni catalysts were prepared to examine their activity and carbon deposition during dry reforming of methane (DRM). With an increase in the final calcination temperature to T=900 °C to form exclusively NiAl2O4, a catalyst with strong metal–support interactions was obtained. During a long-term DRM reaction (of about t=100 h) at T=700 °C and with CH4/CO2=1:1, reduced Ni (from NiAl2O4) showed a high resistance to sintering and coking. The DRM kinetics behaviors of the catalysts calcined at different temperatures were also investigated. Carbon growth models were proposed to rationalize the different carbon morphologies observed on the catalysts.

Original language	English (US)
Pages (from-to)	2508-2516
Number of pages	9
Journal	ChemCatChem
Volume	7
Issue number	16
DOIs	https://doi.org/10.1002/cctc.201500379
State	Published - Jul 16 2015

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01

ASJC Scopus subject areas

Inorganic Chemistry
Physical and Theoretical Chemistry
Organic Chemistry
Catalysis

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10.1002/cctc.201500379

https://repository.kaust.edu.sa/bitstream/10754/567060/1/Revised%20%20cctc.201500379.pdf

Cite this

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title = "Effect of NiAl2O4 Formation on Ni/Al2O3 Stability during Dry Reforming of Methane",

abstract = "A series of alumina-supported Ni catalysts were prepared to examine their activity and carbon deposition during dry reforming of methane (DRM). With an increase in the final calcination temperature to T=900 °C to form exclusively NiAl2O4, a catalyst with strong metal–support interactions was obtained. During a long-term DRM reaction (of about t=100 h) at T=700 °C and with CH4/CO2=1:1, reduced Ni (from NiAl2O4) showed a high resistance to sintering and coking. The DRM kinetics behaviors of the catalysts calcined at different temperatures were also investigated. Carbon growth models were proposed to rationalize the different carbon morphologies observed on the catalysts.",

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AU - Zhou, Lu

AU - Li, Lidong

AU - Wei, Nini

AU - Li, Jun

AU - Basset, Jean-Marie

N1 - KAUST Repository Item: Exported on 2020-10-01

PY - 2015/7/16

Y1 - 2015/7/16

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AB - A series of alumina-supported Ni catalysts were prepared to examine their activity and carbon deposition during dry reforming of methane (DRM). With an increase in the final calcination temperature to T=900 °C to form exclusively NiAl2O4, a catalyst with strong metal–support interactions was obtained. During a long-term DRM reaction (of about t=100 h) at T=700 °C and with CH4/CO2=1:1, reduced Ni (from NiAl2O4) showed a high resistance to sintering and coking. The DRM kinetics behaviors of the catalysts calcined at different temperatures were also investigated. Carbon growth models were proposed to rationalize the different carbon morphologies observed on the catalysts.

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Effect of NiAl2O4 Formation on Ni/Al2O3 Stability during Dry Reforming of Methane

Abstract

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