Cyclopentadienyl Cobalt Complexes as Precatalysts for Electrocatalytic Hydrogen Evolution
| العنوان: | Cyclopentadienyl Cobalt Complexes as Precatalysts for Electrocatalytic Hydrogen Evolution |
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| المؤلفون: | Robert M. Waymouth, Andrew J. Ingram, Sung-Kwan Kim, Kate M. Waldie |
| المصدر: | European Journal of Inorganic Chemistry. 2017:2755-2761 |
| بيانات النشر: | Wiley, 2017. |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | Denticity, 010405 organic chemistry, Ligand, chemistry.chemical_element, 010402 general chemistry, Photochemistry, Electrocatalyst, 01 natural sciences, 0104 chemical sciences, Catalysis, Inorganic Chemistry, Bipyridine, chemistry.chemical_compound, chemistry, Cyclopentadienyl complex, Polymer chemistry, Acetonitrile, Cobalt |
| الوصف: | Electrocatalytic hydrogen evolution is reported with a series of dicationic cobalt complexes [CpCo(N^N)(CH3CN)](ClO4)2 (Cp = cyclopentadienyl; N^N = bipyridine, pyrazolylpyridine, phenylazopyridine) using N,N-dimethylformamidinium buffer as the proton source in acetonitrile. The catalytic current profiles obtained for each complex are very similar to each other with overpotentials ranging from 1.2 to 1.4 V, which suggests a common active catalytic species. Further electrochemical studies demonstrate that these complexes are unstable under electrocatalytic conditions: the bidentate nitrogen ligand is readily lost upon reduction in the presence of acid, initially generating [CpCo(CH3CN)3]+, which undergoes further decomposition to surface-adsorbed species that are responsible for the observed electrocatalysis. |
| تدمد: | 1099-0682 1434-1948 |
| DOI: | 10.1002/ejic.201700188 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::2fc282da83ec744a37db4322553fe50e https://doi.org/10.1002/ejic.201700188 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi...........2fc282da83ec744a37db4322553fe50e |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 10990682 14341948 |
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| DOI: | 10.1002/ejic.201700188 |