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The catalytic hydrogenation of maleic anhydride on CeO2−δ-supported transition metal catalysts

The catalytic hydrogenation of maleic anhydride on CeO2−δ-supported transition metal catalysts
The catalytic hydrogenation of maleic anhydride on CeO2−δ-supported transition metal catalysts
The proper selection of transition metals and support is pivotal to the design of active and selective catalysts for maleic anhydride hydrogenation (MAH). Herein, the M/CeO2−δ (M = Co, Ni, Cu, respectively) catalysts with pre-optimised metal loading of 10 wt % were prepared via a wet impregnation method and well characterized to corroborate their MAH performance with the properties of metal, support and the M/CeO2−δ catalysts. The results revealed that the metal dispersion on the catalyst declines in the order of Ni/CeO2−δ > Co/CeO2−δ > Cu/CeO2−δ, similar to the apparent activity for maleic anhydride (MA) transformation to succinic anhydride (SA). The hydrogenolysis of SA to γ-butyrolactone (GBL) occurs on Ni/CeO2−δ and Co/CeO2−δ only when the MA → SA transformation completing. The Ni/CeO2−δ displays superior activity and selectivity to Co/CeO2−δ in both MA → SA and SA → GBL reactions, while the Cu/CeO2−δ and CeO2−δ are both inert for SA → GBL hydrogenolysis. The MA hydrogenation to SA follows the first order kinetic law on the Ni/CeO2−δ and Co/CeO2−δ catalysts yet a more complex kinetic characteristics observed on the Cu/CeO2−δ. The distinct catalytic hydrogenation behaviours of the M/CeO2−δ catalysts are assigned to the synergism of dispersion and electronic configuration of the transition metals and oxygen vacancies.
2073-4344
Liao, Xin
2c4970a1-fceb-4ab2-8ff5-3df0baae4726
Zhang, Yin
c6568601-0e54-46d9-996e-564abd37fb83
Guo, Junqiu
ec098123-bc59-445e-a5d9-460edc5f9d16
Zhao, Lili
d8b9dbf3-307e-4925-8b4d-961bcb9859be
Hill, Martyn
0cda65c8-a70f-476f-b126-d2c4460a253e
Jiang, Zheng
bcf19e78-f5c3-48e6-802b-fe77bd12deab
Zhao, Yongxiang
d6302903-ff65-45d3-b16b-ccab58d5d835
Liao, Xin
2c4970a1-fceb-4ab2-8ff5-3df0baae4726
Zhang, Yin
c6568601-0e54-46d9-996e-564abd37fb83
Guo, Junqiu
ec098123-bc59-445e-a5d9-460edc5f9d16
Zhao, Lili
d8b9dbf3-307e-4925-8b4d-961bcb9859be
Hill, Martyn
0cda65c8-a70f-476f-b126-d2c4460a253e
Jiang, Zheng
bcf19e78-f5c3-48e6-802b-fe77bd12deab
Zhao, Yongxiang
d6302903-ff65-45d3-b16b-ccab58d5d835

Liao, Xin, Zhang, Yin, Guo, Junqiu, Zhao, Lili, Hill, Martyn, Jiang, Zheng and Zhao, Yongxiang (2017) The catalytic hydrogenation of maleic anhydride on CeO2−δ-supported transition metal catalysts. Catalysts, 7 (9), [272]. (doi:10.3390/catal7090272).

Record type: Article

Abstract

The proper selection of transition metals and support is pivotal to the design of active and selective catalysts for maleic anhydride hydrogenation (MAH). Herein, the M/CeO2−δ (M = Co, Ni, Cu, respectively) catalysts with pre-optimised metal loading of 10 wt % were prepared via a wet impregnation method and well characterized to corroborate their MAH performance with the properties of metal, support and the M/CeO2−δ catalysts. The results revealed that the metal dispersion on the catalyst declines in the order of Ni/CeO2−δ > Co/CeO2−δ > Cu/CeO2−δ, similar to the apparent activity for maleic anhydride (MA) transformation to succinic anhydride (SA). The hydrogenolysis of SA to γ-butyrolactone (GBL) occurs on Ni/CeO2−δ and Co/CeO2−δ only when the MA → SA transformation completing. The Ni/CeO2−δ displays superior activity and selectivity to Co/CeO2−δ in both MA → SA and SA → GBL reactions, while the Cu/CeO2−δ and CeO2−δ are both inert for SA → GBL hydrogenolysis. The MA hydrogenation to SA follows the first order kinetic law on the Ni/CeO2−δ and Co/CeO2−δ catalysts yet a more complex kinetic characteristics observed on the Cu/CeO2−δ. The distinct catalytic hydrogenation behaviours of the M/CeO2−δ catalysts are assigned to the synergism of dispersion and electronic configuration of the transition metals and oxygen vacancies.

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Accepted/In Press date: 8 September 2017
e-pub ahead of print date: 14 September 2017
Published date: 14 September 2017

Identifiers

Local EPrints ID: 414850
URI: http://eprints.soton.ac.uk/id/eprint/414850
ISSN: 2073-4344
PURE UUID: a6f38793-2459-4c40-a5fe-0e881b7a6b84
ORCID for Martyn Hill: ORCID iD orcid.org/0000-0001-6448-9448
ORCID for Zheng Jiang: ORCID iD orcid.org/0000-0002-7972-6175

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Date deposited: 12 Oct 2017 16:31
Last modified: 18 Feb 2021 17:22

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Contributors

Author: Xin Liao
Author: Yin Zhang
Author: Junqiu Guo
Author: Lili Zhao
Author: Martyn Hill ORCID iD
Author: Zheng Jiang ORCID iD
Author: Yongxiang Zhao

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