Electrocatalytic activity of cobalt tris(4-nitrophenyl)corrole for hydrogen evolution from water
| Autor: | Hai Chen, Guo-Tian Luo, Sahadat Hossain, Dong-Lan Huang, Hai-Yang Liu |
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| Rok vydání: | 2019 |
| Předmět: |
Tris
Hydrogen chemistry.chemical_element 010402 general chemistry 010403 inorganic & nuclear chemistry Electrocatalyst 01 natural sciences 0104 chemical sciences Catalysis chemistry.chemical_compound Acetic acid chemistry Polymer chemistry Materials Chemistry Hydrogen evolution Physical and Theoretical Chemistry Corrole Cobalt |
| DOI: | 10.6084/m9.figshare.9924542 |
| Popis: | Catalytic activities for hydrogen (H2) evolution of cobalt 5,10,15-tris(phenyl)corrole (1) and 5,10,15-tris(4-nitrophenyl)corrole (2) (in homogeneous system was examined from acetic acid and water. In phosphate buffer solution (pH 7.0), the hydrogen evolution turnover frequency (TOF) for 1 and 2 were 62 and 150 h−1 at the overpotential of −1.53 V versus Ag/AgCl. In acetic acid media, hydrogen evolution TOF for 1 and 2 were 56 and 127 h−1, respectively, at an overpotential of 961 mV versus Ag/AgNO3. In the practical electrocatalytic hydrogen evolution experiment at −1.45 V (vs. Ag/AgCl) overpotential for 1 h, the TOF were 76 and 188 h−1 for 1 and 2, respectively. No observable decomposition of the catalyst could be observed after electrolysis for 72 h with a glassy carbon electrode. |
| Databáze: | OpenAIRE |
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