Wang Yuanshuang, Chen Junxiang, Wang Genxiang, Li Yan, Wen Zhenhai
CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, 350002, P. R. China.
Angew Chem Int Ed Engl. 2018 Oct 1;57(40):13120-13124. doi: 10.1002/anie.201807173. Epub 2018 Sep 7.
Developing cost-effective electrocatalysts for high-selectivity CO electroreduction remains challenging. We herein report a perfluorinated covalent triazine framework (CTF) electrocatalyst that displays very high selectivity in the electroreduction of CO to CH with a faradaic efficiency of 99.3 % in aqueous electrolyte. Systematic characterization and electrochemical studies, in combination with density functional theory calculations, demonstrate that the presence of both nitrogen and fluorine in the CTF provides a unique pathway that is inaccessible with the individual components for CO electroreduction.
开发用于高选择性CO电还原的具有成本效益的电催化剂仍然具有挑战性。我们在此报告一种全氟共价三嗪框架（CTF）电催化剂，其在将CO电还原为CH方面表现出非常高的选择性，在水性电解质中的法拉第效率为99.3%。系统的表征和电化学研究，结合密度泛函理论计算，表明CTF中氮和氟的存在提供了一条独特的途径，这是单独的组分在CO电还原中无法实现的。
