A titanium-based porous coordination polymer as a catalyst for chemical fixation of CO2

作者：Du, Ya; Yang, Haishen; Wan, Shun; Jin, Yinghua; Zhang, Wei^*

来源：Journal of Materials Chemistry A, 2017, 5(19): 9163-9168.

DOI：10.1039/c7ta01188a

• METAL-ORGANIC FRAMEWORK
• CYCLIC CARBONATES
• CAPTURE
• EPOXIDES
• ARYLENE

A novel type of porous coordination polymer with titanium alkoxide linkages (Ti-PCP) was successfully constructed through reaction of a 1,3-diol-substituted shape-persistent arylene-ethynylene macrocycle with Ti((OPr)-Pr-i)(4). The polymer exhibits a high Brunauer-Emmett-Teller (BET) surface area (1029 m(2) g(-1)) and good adsorption selectivity for CO2 over N-2. With n-Bu4NBr as a co-catalyst, Ti-PCP can serve as a highly efficient catalyst to convert CO2 into cyclocarbonates through the cycloaddition reaction with epoxides under mild conditions. This framework-based heterogeneous catalyst not only has excellent catalytic activity, but also can be recycled and reused many times with easy product separation, thus showing its great potential for industrial applications as a green catalyst. With high uptake of CO2 and catalytic ability to convert CO2 to useful chemical compounds, this type of porous polymer with embedded catalytic centers could have important applications to solve environmental problems regarding post-combustion CO2 capture and conversion.

• 出版日期2017-5-21
• 单位上海电力大学