Saptal Vitthal B, Sasaki Takehiko, Harada Kei, Nishio-Hamane Daisuke, Bhanage Bhalchandra M
Department of Chemistry, Institute of Chemical Technology, Matunga, Mumbai-, 400 019, India), Fax: (+91) 22-33611020.
Department of Complexity Science and Engineering, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba, 277-8561, Japan.
ChemSusChem. 2016 Mar 21;9(6):644-50. doi: 10.1002/cssc.201501438. Epub 2016 Feb 3.
An environmentally-benign carbocatalyst based on amine-functionalized graphene oxide (AP-GO) was synthesized and characterized. This catalyst shows superior activity for the chemical fixation of CO2 into cyclic carbonates at the atmospheric pressure. The developed carbocatalyst exhibits superior activity owing to its large surface area with abundant hydrogen bonding donor (HBD) capability and the presence of well-defined amine functional groups. The presence of various HBD and amine functional groups on the graphene oxide (GO) surface yields a synergistic effect for the activation of starting materials. Additionally, this catalyst shows high catalytic activity to synthesize carbonates at 70 °C and at 1 MPa CO2 pressure. The developed AP-GO could be easily recovered and used repetitively in up to seven recycle runs with unchanged catalyst activity.
合成并表征了一种基于胺功能化氧化石墨烯（AP-GO）的环境友好型碳催化剂。该催化剂在常压下将二氧化碳化学固定为环状碳酸酯表现出优异的活性。所开发的碳催化剂表现出优异的活性，这归因于其具有大表面积且具有丰富的氢键供体（HBD）能力以及存在明确的胺官能团。氧化石墨烯（GO）表面上各种HBD和胺官能团的存在对起始原料的活化产生协同效应。此外，该催化剂在70℃和1MPa二氧化碳压力下合成碳酸酯表现出高催化活性。所开发的AP-GO可以很容易地回收，并在多达七次循环运行中重复使用，催化剂活性不变。
