Hybrid Amine-Functionalized Graphene Oxide as a Robust Bifunctional Catalyst for Atmospheric Pressure Fixation of Carbon Dioxide using Cyclic Carbonates.
Hybrid Amine-Functionalized Graphene Oxide as a Robust Bifunctional Catalyst for Atmospheric Pressure Fixation of Carbon Dioxide using Cyclic Carbonates.
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DOI：
10.1002/cssc.201501438
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发表时间：
2016-03
期刊：
影响因子：
8.4
通讯作者：
Vitthal B. Saptal;Takehiko Sasaki;K. Harada;D. Nishio–Hamane;B. Bhanage
中科院分区：
文献类型：
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作者：
Vitthal B. Saptal;Takehiko Sasaki;K. Harada;D. Nishio–Hamane;B. Bhanage
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CO2化学固定为环状碳酸酯中显示出优异的上级活性。该碳催化剂具有较大的比表面积、丰富的氢键供体（HBD）能力和明确的胺官能团，具有上级活性。氧化石墨烯（GO）表面上各种HBD和胺官能团的存在产生用于活化起始材料的协同效应。此外，该催化剂在70 °C和IMPa CO2压力下显示出高的合成碳酸酯的催化活性。开发的AP-GO可以很容易地回收和重复使用多达7个循环运行与不变的催化剂活性。
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.