Hydrogen evolution reaction efficiency of carbon nanohorn incorporating molybdenum sulfide and polydopamine/palladium nanoparticles
| Autor: | Toyoko Imae, Chia-Chi Chang, Balamurugan Devadas |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Nanocomposite General Chemical Engineering chemistry.chemical_element 02 engineering and technology General Chemistry engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences Chemical reaction Hydrothermal circulation 0104 chemical sciences Coating chemistry Chemical engineering Electrode engineering 0210 nano-technology Carbon Current density |
| Zdroj: | Journal of the Taiwan Institute of Chemical Engineers. 102:378-386 |
| ISSN: | 1876-1070 |
| DOI: | 10.1016/j.jtice.2019.05.014 |
| Popis: | The involvement of carbon nanohorn (CNH) in molybdenum sulfide (MoS2) and polydopamine (PDA)/palladium nanoparticles (Pd NPs) was studied for the hydrogen evolution reaction (HER) efficiency. In this research, the in-situ hydrothermal and PDA-assisted chemical reaction routes were adopted to synthesize MoS2/CNH and PDA-Pd/CNH nanocomposites. The electrochemical studies confirmed the HER activity of PDA-Pd/CNH-modified electrode superior to that of MoS2/CNH-modified electrode. The coating thickness of PDA was optimized towards high HER efficiency. The enhancement of HER cathodic current density was due to the strong interaction between CNH and Pd NPs. The thin coating by PDA on Pd/CNH nanocomposites maintained the excellent stability and the durability during the HER. Thus, CNH is one of the hopeful carbon materials to enhance the cathodic current density for HER. |
| Databáze: | OpenAIRE |
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