Tuning the Hydrogen Evolution Reaction on Metals by Lithium Salt
| Autor: | Tharangattu N. Narayanan, Sreekanth Narayanaru, Anku Guha |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
chemistry.chemical_classification
Supporting electrolyte Inorganic chemistry Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Electrocatalyst 01 natural sciences Redox 0104 chemical sciences chemistry.chemical_compound chemistry Materials Chemistry Electrochemistry Chemical Engineering (miscellaneous) Lithium Electrical and Electronic Engineering Counterion 0210 nano-technology Imide Platinum Electrochemical reduction of carbon dioxide |
| Zdroj: | ACS Applied Energy Materials. 1:7116-7122 |
| ISSN: | 2574-0962 |
| DOI: | 10.1021/acsaem.8b01546 |
| Popis: | Tuning the electrode–electrolyte interfaces transiently for controlling the kinetics of hydrogen evolution reaction (HER) on metals will be highly intriguing in energetics. Here, the inherent HER activities of polycrystalline platinum (Pt) and gold (Au) electrodes are altered by different lithium salts. The HER activity of Pt is shown to be suppressed by increasing the Li+ ion concentration while inverse effect is observed in Au, and this is verified in different pH (2–13) conditions and also with different counterions (Li+, Na+, ClO4–, Cl–, and bis(trifluoromethanesulfonyl)imide) ion. A mechanistic insight is provided for this observed phenomenon, which has paramount importance in other electrocatalytic processes as well, such as carbon dioxide reduction and nitrogen reduction reactions. |
| Databáze: | OpenAIRE |
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