Synergistic effect of Pd and Ni on resistance to carbon deposition over NiO-MgO solid solution supported Pd catalysts in oxidative steam reforming of methane under pressurized conditions

Mohammad Nurunnabi; Shigeru Kado; Kimihito Suzuki; Ken ichiro Fujimoto; Kimio Kunimori; Keiichi Tomishige

doi:10.1016/j.catcom.2006.01.006

Synergistic effect of Pd and Ni on resistance to carbon deposition over NiO-MgO solid solution supported Pd catalysts in oxidative steam reforming of methane under pressurized conditions

Mohammad Nurunnabi, Shigeru Kado, Kimihito Suzuki, Ken ichiro Fujimoto, Kimio Kunimori, Keiichi Tomishige

Research output: Contribution to journal › Article

31 Citations (Scopus)

Abstract

Effect of Pd loading to NiO-MgO solid solution was investigated on catalytic activity and inhibition of carbon deposition in oxidative steam reforming of methane. Under atmospheric pressure, Pd/Ni_0.2Mg_0.8O exhibited much higher methane conversion than Ni_0.2Mg_0.8O and Pd/MgO catalysts by the enhancement of reduction degree of Ni and the formation of Pd-Ni alloy. Under pressurized conditions, 0.1% Pd/Ni_0.2Mg_0.8O catalyst showed high and stable activity; and the amount of deposited carbon was negligible. In contrast, the deactivation was clearly observed over Ni_0.2Mg_0.8O, Pd/MgO and other Pd/Ni_0.2Mg_0.8O catalysts, and the deactivation rate was closely related to the amount of deposited carbon.

Original language	English
Pages (from-to)	488-493
Number of pages	6
Journal	Catalysis Communications
Volume	7
Issue number	7
DOIs	https://doi.org/10.1016/j.catcom.2006.01.006
Publication status	Published - 2006 Jul 1
Externally published	Yes

Keywords

Carbon deposition
Deactivation
Methane
Ni
Oxidative reforming
Pd
Steam reforming

ASJC Scopus subject areas

Catalysis
Chemistry(all)
Process Chemistry and Technology

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Nurunnabi, M., Kado, S., Suzuki, K., Fujimoto, K. I., Kunimori, K., & Tomishige, K. (2006). Synergistic effect of Pd and Ni on resistance to carbon deposition over NiO-MgO solid solution supported Pd catalysts in oxidative steam reforming of methane under pressurized conditions. Catalysis Communications, 7(7), 488-493. https://doi.org/10.1016/j.catcom.2006.01.006

Synergistic effect of Pd and Ni on resistance to carbon deposition over NiO-MgO solid solution supported Pd catalysts in oxidative steam reforming of methane under pressurized conditions. / Nurunnabi, Mohammad; Kado, Shigeru; Suzuki, Kimihito; Fujimoto, Ken ichiro; Kunimori, Kimio; Tomishige, Keiichi.

In: Catalysis Communications, Vol. 7, No. 7, 01.07.2006, p. 488-493.

Research output: Contribution to journal › Article

Nurunnabi, Mohammad ; Kado, Shigeru ; Suzuki, Kimihito ; Fujimoto, Ken ichiro ; Kunimori, Kimio ; Tomishige, Keiichi. / Synergistic effect of Pd and Ni on resistance to carbon deposition over NiO-MgO solid solution supported Pd catalysts in oxidative steam reforming of methane under pressurized conditions. In: Catalysis Communications. 2006 ; Vol. 7, No. 7. pp. 488-493.

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title = "Synergistic effect of Pd and Ni on resistance to carbon deposition over NiO-MgO solid solution supported Pd catalysts in oxidative steam reforming of methane under pressurized conditions",

abstract = "Effect of Pd loading to NiO-MgO solid solution was investigated on catalytic activity and inhibition of carbon deposition in oxidative steam reforming of methane. Under atmospheric pressure, Pd/Ni0.2Mg0.8O exhibited much higher methane conversion than Ni0.2Mg0.8O and Pd/MgO catalysts by the enhancement of reduction degree of Ni and the formation of Pd-Ni alloy. Under pressurized conditions, 0.1% Pd/Ni0.2Mg0.8O catalyst showed high and stable activity; and the amount of deposited carbon was negligible. In contrast, the deactivation was clearly observed over Ni0.2Mg0.8O, Pd/MgO and other Pd/Ni0.2Mg0.8O catalysts, and the deactivation rate was closely related to the amount of deposited carbon.",

keywords = "Carbon deposition, Deactivation, Methane, Ni, Oxidative reforming, Pd, Steam reforming",

author = "Mohammad Nurunnabi and Shigeru Kado and Kimihito Suzuki and Fujimoto, {Ken ichiro} and Kimio Kunimori and Keiichi Tomishige",

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AU - Nurunnabi, Mohammad

AU - Kado, Shigeru

AU - Suzuki, Kimihito

AU - Fujimoto, Ken ichiro

AU - Kunimori, Kimio

AU - Tomishige, Keiichi

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AB - Effect of Pd loading to NiO-MgO solid solution was investigated on catalytic activity and inhibition of carbon deposition in oxidative steam reforming of methane. Under atmospheric pressure, Pd/Ni0.2Mg0.8O exhibited much higher methane conversion than Ni0.2Mg0.8O and Pd/MgO catalysts by the enhancement of reduction degree of Ni and the formation of Pd-Ni alloy. Under pressurized conditions, 0.1% Pd/Ni0.2Mg0.8O catalyst showed high and stable activity; and the amount of deposited carbon was negligible. In contrast, the deactivation was clearly observed over Ni0.2Mg0.8O, Pd/MgO and other Pd/Ni0.2Mg0.8O catalysts, and the deactivation rate was closely related to the amount of deposited carbon.

KW - Carbon deposition

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KW - Methane

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KW - Oxidative reforming

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KW - Steam reforming

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