One-step synthesis of ordered mesoporous CoAl2O4 spinel-based metal oxides for CO2 reforming of CH4

Leilei Xu; Jian Zhang; Fagen Wang; Kaidi Yuan; Liangjun Wang; Kai Wu; Guoqin Xu; Wei Chen

doi:10.1039/C5RA07249B

One-step synthesis of ordered mesoporous CoAl₂O₄ spinel-based metal oxides for CO₂ reforming of CH₄†

Leilei Xu,^ab Jian Zhang,^a Fagen Wang,^ad Kaidi Yuan,^c Liangjun Wang,^c Kai Wu,^be Guoqin Xu^abd and Wei Chen*^abcd

* Corresponding authors

^a Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, Singapore
E-mail: phycw@nus.edu.sg
Fax: +65-6777-6126
Tel: +65-6516-2921

^b Singapore-Peking University Research Center for a Sustainable Low-Carbon Future, 1 CREATE Way, #15-01, CREATE Tower, Singapore 138602, Singapore

^c Department of Physics, National University of Singapore, 2 Science Drive 3, Singapore, Singapore

^d National University of Singapore (Suzhou) Research Institute, Suzhou, China

^e College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China

Abstract

A series of ordered mesoporous CoAl₂O₄ spinel-based metal oxides with different Co content were facilely synthesized via a one-step evaporation-induced self-assembly method and utilized as catalysts for CO₂ reforming of CH₄. These mesoporous catalysts, which have unique textural properties and outstanding thermal stabilities, exhibited excellent catalytic performances under various reaction conditions. The ordered mesostructures in the catalysts could provide sufficiently accessible Co active sites for gaseous reactants and stabilize Co metallic nanoparticles via confinement effects within the mesoporous frameworks. These mesoporous catalysts exhibited better anti-coke abilities than non-mesoporous catalysts or traditional supported catalysts, thus acting as a promising series of potential catalyst candidates for CO₂ reforming of CH₄.

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Article information

DOI: https://doi.org/10.1039/C5RA07249B
Article type: Paper
Submitted: 21 Apr 2015
Accepted: 13 May 2015
First published: 14 May 2015

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RSC Adv., 2015,5, 48256-48268

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One-step synthesis of ordered mesoporous CoAl₂O₄ spinel-based metal oxides for CO₂ reforming of CH₄

L. Xu, J. Zhang, F. Wang, K. Yuan, L. Wang, K. Wu, G. Xu and W. Chen, RSC Adv., 2015, 5, 48256 DOI: 10.1039/C5RA07249B

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