Robust interaction of cobalt phthalocyanine and nitrogen-doped ordered mesoporous carbon for CO<sub>2</sub> reduction paired with the electro-oxidative synthesis of sulfonamide derivatives
作者:Samin Barat-Abtahi、Faranak Jafari-Hafshejani、Fahimeh Varmaghani、Babak Karimi、Hamzeh H. Veisi
DOI:10.1039/d3gc02977h
日期:——
electrocatalyst based on cobalt phthalocyanine combined with N-doped ordered mesoporous carbon (CoPc@GIOMC) was developed for CO2 reduction. To achieve this goal, we designed an innovative paired electrolyzer that integrates CO2 reduction to CO with the efficient oxidative coupling of certain phenylhydroxylamines to produce biologically important sulfonamide and organosulfone derivatives. The hybrid electrode
在这项工作中,开发了一种基于钴酞菁与氮掺杂有序介孔碳(CoPc@GIOMC)相结合的高性能混合电催化剂,用于CO 2还原。为了实现这一目标,我们设计了一种创新的配对电解槽,它将 CO 2还原为 CO 与某些苯基羟胺的高效氧化偶联相结合,以生产具有生物学重要意义的磺酰胺和有机砜衍生物。混合电极在0.57 V vs. RHE的过电势(起始电势为0.3 V vs. RHE)下将CO 2选择性还原为CO时表现出33 mA cm -2的显着部分电流密度和90的法拉第效率% 接近天然的水溶液(pH = 7.4)。这种优异的性能可归因于我们的氮掺杂介孔碳材料的高氮含量、大量缺陷位点和大表面积,这有利于CoPc在GIOMC上牢固而稳定的附着。此外,在阴极CO 2还原与合成具有重要生物学意义的磺酰胺和有机砜衍生物耦合的背景下,电解系统表现出高阳极法拉第效率,在电解135分钟后在6 mA cm -2下达到近100%。令人满意的能源效率高达70%。