Synthesis and Electrocatalytical Application of Hybrid Pd/Metal Oxides/MWCNTs
| Autor: | Hong-Ming Lin, Yuh-Jing Chiou, Andrzej Borodzinski, Piotr Kedzierzawski, Guo-Hao Wu, Leszek Stobinski |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Article Subject Formic acid Catalyst support Oxide 02 engineering and technology Carbon nanotube 010402 general chemistry Electrochemistry 01 natural sciences Catalysis law.invention Metal lcsh:Chemistry chemistry.chemical_compound Polyol law chemistry.chemical_classification 021001 nanoscience & nanotechnology 0104 chemical sciences chemistry Chemical engineering lcsh:QD1-999 visual_art visual_art.visual_art_medium 0210 nano-technology |
| Zdroj: | International Journal of Electrochemistry, Vol 2018 (2018) |
| ISSN: | 2090-3537 2090-3529 |
| Popis: | The performance of Pd electrocatalysts for formic acid electrooxidation was improved by application of metal oxide-multiwall carbon nanotubes composites as a catalyst support. Hybrid oxides/MWCNTs were synthesized by two different methods: chemical reduction method and impregnation method. Pd based catalysts were synthesized by polyol method on the MWCNTs or oxide/MWCNTs composites. The In2O3 was deposited on MWCNTs by impregnation method (In2O3/MWCNTs-IM support) and in the presence of NaBH4 (In2O3/MWCNTs-NaBH4 support). The physical properties of the Pd/In2O3/MWCNTs-IM, Pd/In2O3/MWCNTs-NaBH4, Pd/SnO2/MWCNTs, and Pd/MWCNTs catalysts were characterized and their electrocatalytical performance in formic acid oxidation was compared. During Pd deposition on In2O3/MWCNTs-NaBH4 support, InPd2 structure was formed as observed by XRD. The electrochemical tests indicate that the two Pd/ In2O3/MWCNTs electrocatalysts have higher electrocatalytic activity than those of Pd/SnO2/MWCNTs and Pd/MWCNTs. The best performance was observed for the catalyst obtained by In2O3 impregnation of MWCNTs denoted by Pd/In2O3/MWCNTs-IM. |
| Databáze: | OpenAIRE |
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