Boosting hydrogen evolution by using covalent frameworks of fluorinated cobalt porphyrins supported on carbon nanotubes
作者:Gelun Xu、Haitao Lei、Guojun Zhou、Chaochao Zhang、Lisi Xie、Wei Zhang、Rui Cao
DOI:10.1039/c9cc06916j
日期:——
synthesized. With carbon-nanotube-templated polymerization, covalent porphyrin frameworks using FCoP-H can be synthesized via the Hay-coupling. The resulting FCoP@CNT is efficient to catalyze the hydrogen evolution reaction (HER) in aqueous media, and its performance is superior, in terms of both lower overpotentials and larger catalytic currents, to covalent porphyrin frameworks using non-fluorinated
设计并合成了钴(II)四(2,3,5,6-四氟-4-乙炔基苯基)卟啉(FCoP-H)。通过碳纳米管模板聚合,可以通过Hay偶联合成使用FCoP-H的共价卟啉骨架。最终的FCoP@CNT可有效催化水性介质中的氢气释放反应(HER),就较低的超电势和较大的催化电流而言,其性能优于使用非氟化钴卟啉类似物和单体氟化钴的共价卟啉骨架卟啉仅吸附在CNT上。这项工作结合了CNT模板共价框架和氟化钴卟啉的优点,从而显着提高了HER性能。该策略在使用分子工程碳材料的其他电催化系统中值得探索。