Cobalt–citrate framework armored with graphene oxide exhibiting improved thermal stability and selectivity for biogas decarburization

Yangcan Shen; Ziyin Li; Lihua Wang; Yingxiang Ye; Qing Liu; Xiuling Ma; Qianhuo Chen; Zhangjing Zhang; Shengchang Xiang

doi:10.1039/C4TA04770B

Cobalt–citrate framework armored with graphene oxide exhibiting improved thermal stability and selectivity for biogas decarburization†

Yangcan Shen,^ab Ziyin Li,^a Lihua Wang,^a Yingxiang Ye,^a Qing Liu,^a Xiuling Ma,^a Qianhuo Chen,^a Zhangjing Zhang*^a and Shengchang Xiang*^ac

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* Corresponding authors

^a Fujian Provincial Key Laboratory of Polymer Materials, College of Material Sciences and Engineering, Fujian Normal University, 32 Shangsan Road, Fuzhou 350007, China
E-mail: zzhang@fjnu.edu.cn, scxiang@fjnu.edu.cn

^b State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China

^c College of Life and Environmental Sciences, Minzu University of China, 27 South Zhongguancun Boulevard, Haidian District, Beijing 100081, China

Abstract

A series of metal–organic framework (UTSA-16)–graphene oxide composites was synthesized. These composites are the first reported examples of core–shell type metal–organic framework composites armored with graphene oxide film. The parent materials (UTSA-16 and graphene oxide) and the nanocomposites were characterized using XRD, SEM, TEM, TGA and gas adsorption. The composites showed a greatly improved thermal stability compared with their parent materials. The UTSA-16–GO19 composite has a CO₂/CH₄ selectivity of 114.4, which is three times greater than that of UTSA-16 alone; of the previously reported metal–organic frameworks, only the polyamine-incorporated amine-MIL-101(Cr) has a higher CO₂/CH₄ selectivity. These graphene oxide composites provide a new direction for practical high-performance metal–organic framework materials.

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DOI: https://doi.org/10.1039/C4TA04770B
Article type: Paper
Submitted: 12 Sep 2014
Accepted: 31 Oct 2014
First published: 03 Nov 2014

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J. Mater. Chem. A, 2015,3, 593-599

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Cobalt–citrate framework armored with graphene oxide exhibiting improved thermal stability and selectivity for biogas decarburization

Y. Shen, Z. Li, L. Wang, Y. Ye, Q. Liu, X. Ma, Q. Chen, Z. Zhang and S. Xiang, J. Mater. Chem. A, 2015, 3, 593 DOI: 10.1039/C4TA04770B

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Journal of Materials Chemistry A

Cobalt–citrate framework armored with graphene oxide exhibiting improved thermal stability and selectivity for biogas decarburization†

Abstract

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Cobalt–citrate framework armored with graphene oxide exhibiting improved thermal stability and selectivity for biogas decarburization

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