Cobalt–citrate framework armored with graphene oxide exhibiting improved thermal stability and selectivity for biogas decarburization. Issue 2 (19th November 2014)

• Record Type: Journal Article
• Authors: Shen, Yangcan; Li, Ziyin; Wang, Lihua; Ye, Yingxiang; Liu, Qing; Ma, Xiuling; Chen, Qianhuo; Zhang, Zhangjing; Xiang, Shengchang
• Is Part Of: Journal of materials chemistry. Volume 3:Issue 2(2015)
• Page Start: 593
• Page End: 599
• Publication Date: 2014-11-19
• Subjects: Materials -- Research -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental sciences -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c4ta04770b
• Languages: English
• ISSNs: 2050-7488

Abstract

Abstract : The first example of core–shell MOF–GO composites exhibits significantly improved thermal stability and CO2 /CH4 selectivity compared with their parent materials. 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.