Synthesis of three-dimensional reduced graphene oxide layer supported cobalt nanocrystals and their high catalytic activity in F–T CO2 hydrogenation

• DOI: 10.1039/c3nr03038e
• Publication Date: 2013-06-28T11:34:01Z
• Authors: Fei He; Na Niu; Fengyu Qu; Shuquan Wei; Yujin Chen; Shili Gai; Peng Gao; Yan Wang; Piaoping Yang
• Keywords: Cobalt oxide

The reduced graphene oxide (rGO) supported cobalt nanocrystals have been synthesized through an in situ crystal growth method using Co(acac)2 under solvothermal conditions by DMF as the solvent. By carefully controlling reaction temperature, phase transition of from cubic to hexagonal has achieved. Moreover, microscopic structure and morphology well reduction process composite investigated detail. It is found that oxygen-containing functional groups on (GO) can greatly influence formation Co binding Co2+ cations dissociated initial solution at 220 °C, leading 3D reticular composite. Furthermore, this first attempt use a Co/rGO catalyst F–T CO2 hydrogenation process. catalysis testing results reveal as-synthesized structured exhibits ideal catalytic activity good stability, which may extend scope applications for kind graphene-based metal hybrid material.