Direct and indirect electrocatalysis on nickel phosphate-based catalysts
| Autor: | Mahmoud M. Saleh, Amani A. Al-Sultan, Ahmed H. Touny |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
General Chemical Engineering
Inorganic chemistry Glassy carbon electrode Formaldehyde 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry Electrocatalyst 01 natural sciences Nickel phosphate 0104 chemical sciences Analytical Chemistry Catalysis chemistry.chemical_compound chemistry 0210 nano-technology BET theory |
| Zdroj: | Journal of Electroanalytical Chemistry. 844:116-123 |
| ISSN: | 1572-6657 |
| DOI: | 10.1016/j.jelechem.2019.05.027 |
| Popis: | Here, for the first time, the direct and indirect mechanism is reported for nickel phosphate (nNiPh) modified glassy carbon electrode (GC) in alkaline solution. The two mechanisms are discussed using formaldehyde (FAL) electrochemical oxidation as the probe reaction. At lower FAL concentration, the indirect mechanism exists while at higher FAL, the direct mechanism prevails. Gradual conversion from indirect to direct mechanism is observed with the [FAL]. The results are analyzed to explain both mechanisms are given here. Different surface and structure characterizations are characterized by different techniques including BET surface area determination, TEM, FE-SEM, and XRD. |
| Databáze: | OpenAIRE |
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