Cobalt-citrate framework armored with graphene oxide exhibiting improved thermal stability and selectivity for biogas decarburization
Cobalt-citrate framework armored with graphene oxide exhibiting improved thermal stability and selectivity for biogas decarburization
复制标题
氧化石墨烯铠装的钴柠檬酸盐框架表现出改进的热稳定性和沼气脱碳选择性
DOI：
10.1039/c4ta04770b
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发表时间：
2015-01-01
影响因子：
11.9
通讯作者：
Xiang, Shengchang
中科院分区：
文献类型：
--
作者：
Shen, Yangcan;Li, Ziyin;Xiang, Shengchang
合成了一系列金属有机骨架（UTSA-16）-氧化石墨烯复合材料。这些复合材料是首次报道的用氧化石墨烯膜装甲的核-壳型金属-有机框架复合材料的实例。采用XRD、SEM、TEM、TGA和气体吸附等方法对母体材料（UTSA-16和氧化石墨烯）和纳米复合材料进行了表征。复合材料的热稳定性较其母体材料有很大提高。UTSA-16-GO 19复合物的CO2/CH 4选择性为114.4，是单独UTSA-16的三倍;在先前报道的金属-有机框架中，只有引入多胺的胺-MIL-101-（Cr）具有更高的CO2/CH 4选择性。这些氧化石墨烯复合材料为实用的高性能金属有机骨架材料提供了新的方向。
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.