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Electrocatalytic Hydrogen Evolution of Cobalt and Free‐base Triaryl Corrole Bearing Hydroxyethyl Amino Groups
European Journal of Inorganic Chemistry ( IF 2.2 ) Pub Date : 2020-01-30 , DOI: 10.1002/ejic.201900996 Ying Chen 1 , Qi-Hang Fan 1 , Md Sahadat Hossain 1 , Shu-Zhong Zhan 1 , Hai-Yang Liu 1 , Li-Ping Si 2
European Journal of Inorganic Chemistry ( IF 2.2 ) Pub Date : 2020-01-30 , DOI: 10.1002/ejic.201900996 Ying Chen 1 , Qi-Hang Fan 1 , Md Sahadat Hossain 1 , Shu-Zhong Zhan 1 , Hai-Yang Liu 1 , Li-Ping Si 2
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Four free‐base corroles (F15C, F12C, F10C, F8C) and their cobalt(III) complexes were used as homogeneous electrocatalysts for hydrogen evolution using acetic acid, trifluoroacetic acid and water as proton sources. Free‐base corrole was firstly reported as electrocatalyst for H2 evolution. The results showed that free‐base corrole was active in electrocatalytic hydrogen evolution reaction (HER) in trifluoroacetic acid. And cobalt(III) corroles bearing hydroxyethyl amino groups were more efficient in HER as compared to their benchmark corroles. The catalytic active species of four tested cobalt(III) corroles were CoII‐H in acetic acid/dimethylformamide solvent. In water solution, both CoIII‐H and CoII‐H may be involved in HER. Interestingly, when trifluoroacetic acid was used as proton source, CoII‐H was the mainly active intermediate for F15CCo and F10CCo, and CoIII‐H for F12CCo and F8CCo, respectively. As for the free‐base corrole, (·Cor)H4 and [(·Cor)H3]– were the catalytic active species.
中文翻译：
带有羟乙基氨基的钴和游离基三芳基芳烃的电催化氢演化
使用乙酸，三氟乙酸和水作为质子源，使用了四种游离碱腐蚀剂（F 15 C，F 12 C，F 10 C，F 8 C）及其钴（III）络合物作为均相电催化剂来析氢。最早报道了游离碱甲氧作为H 2析出的电催化剂。结果表明，游离碱甲氧在三氟乙酸中的电催化制氢反应（HER）中具有活性。带有羟乙基氨基的钴（III）酯在HER中比其基准酯更有效。四种被测钴（III）的催化活性物种为Co II‐H在乙酸/二甲基甲酰胺溶剂中。在水溶液中，Co III -H和Co II -H都可能参与HER。有趣的是，当使用三氟乙酸作为质子源时，Co II- H分别是F 15 CCo和F 10 CCo的主要活性中间体，以及Co III- H分别是F 12 CCo和F 8 CCo的活性中间体。对于游离碱甲氧基，（· Cor）H 4和[（· Cor）H 3 ] –是催化活性物质。
更新日期：2020-01-31
中文翻译：
带有羟乙基氨基的钴和游离基三芳基芳烃的电催化氢演化
使用乙酸，三氟乙酸和水作为质子源，使用了四种游离碱腐蚀剂（F 15 C，F 12 C，F 10 C，F 8 C）及其钴（III）络合物作为均相电催化剂来析氢。最早报道了游离碱甲氧作为H 2析出的电催化剂。结果表明，游离碱甲氧在三氟乙酸中的电催化制氢反应（HER）中具有活性。带有羟乙基氨基的钴（III）酯在HER中比其基准酯更有效。四种被测钴（III）的催化活性物种为Co II‐H在乙酸/二甲基甲酰胺溶剂中。在水溶液中，Co III -H和Co II -H都可能参与HER。有趣的是，当使用三氟乙酸作为质子源时，Co II- H分别是F 15 CCo和F 10 CCo的主要活性中间体，以及Co III- H分别是F 12 CCo和F 8 CCo的活性中间体。对于游离碱甲氧基，（· Cor）H 4和[（· Cor）H 3 ] –是催化活性物质。
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