Titanium dioxide as support material for Pt1Pd3 toward methanol oxidation
| Autor: | Shuangshuang Lei, Mengmeng Xu, Changchun Jin |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Renewable Energy Sustainability and the Environment Energy Engineering and Power Technology Nanoparticle 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Catalysis chemistry.chemical_compound Fuel Technology chemistry Chemical engineering Rutile Titanium dioxide Peak intensity Methanol 0210 nano-technology |
| Zdroj: | International Journal of Hydrogen Energy. 46:5390-5397 |
| ISSN: | 0360-3199 |
| Popis: | The electrocatalytic oxidation of methanol on the Pt1Pd3 nanoparticles supported on rutile TiO2 in alkaline solution is investigated. The Pt1Pd3 nanoparticles are prepared by the chemical co-reduction of the precursors of Pt and Pd and then loaded on TiO2. The Pt1Pd3 nanoparticles with sizes of about 2–4 nm and a certain degree of aggregation are dispersed on TiO2. The position and shape of the methanol oxidation peak on Pt1Pd3/TiO2 are more similar to those on Pt/TiO2 than those on Pd/TiO2, while Pt1Pd3/TiO2 exhibits higher catalytic activity, e.g., a significantly higher peak intensity, than Pt1Pd3/C, Pt/TiO2 and Pd/TiO2. This indicates the advantage of TiO2 as a support material and the strong synergy between the Pt1Pd3 and TiO2 and between the Pt and Pd. Moreover, Pt1Pd3/TiO2 has a high tolerance for the poisoning caused by CO. Rutile TiO2 is shown to be suitable as a support material for the Pt1Pd3 to achieve enhanced catalytic activity and stability. |
| Databáze: | OpenAIRE |
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