Platinum nanospheres electrodeposited on titanium oxide/titanium modified electrode for improved electrocatalytic activity of methanol electrooxidation
| Autor: | Seyed Javad Ahmadi, Mojtaba Shamsipur, Leila Irannejad |
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| Rok vydání: | 2019 |
| Předmět: |
Materials science
Anodizing General Chemical Engineering chemistry.chemical_element 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Biochemistry Industrial and Manufacturing Engineering 0104 chemical sciences Catalysis Titanium oxide chemistry.chemical_compound Chemical engineering chemistry Electrode Materials Chemistry Methanol 0210 nano-technology Platinum Layer (electronics) Titanium |
| Zdroj: | Chemical Papers. 73:2153-2164 |
| ISSN: | 1336-9075 2585-7290 |
| DOI: | 10.1007/s11696-019-00727-8 |
| Popis: | The surface of titanium electrode was electrooxidized by simple anodizing method to form a TiO2 layer on the Ti electrode surface in H2SO4 solution. Then Pt nanospheres were synthesized on the TiO2 surface by electroredution of PtCl4 in acidic medium. The prepared modified electrode was fully characterized and applied to methanol electrooxidation. In comparison with pure Pt, the deposition of Pt nanoparticles on TiO2 surface led to a significant increase in catalytic efficiency of Pt toward the electrocatalytic oxidation of methanol. The poisoning of catalyst surface was investigated by electrooxidation of CO on this modified electrode, which showed a considerable reduction in CO oxidation potential. |
| Databáze: | OpenAIRE |
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