A facile synthesis of ruthenium/reduced graphene oxide nanocomposite for effective electrochemical applications
| Autor: | Ngoc Hung Vu, Nguyen Van Hieu, Ho-Suk Choi, Van-Duong Dao, Dang Viet Quang, Nguyen Xuan Viet, Chu Manh Hung, Tran Thi Ngoc Dung, Nguyen Duc Hoa |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Supercapacitor
Nanocomposite Materials science Renewable Energy Sustainability and the Environment Graphene 020209 energy chemistry.chemical_element Nanotechnology 02 engineering and technology 021001 nanoscience & nanotechnology Nanomaterials law.invention Ruthenium chemistry.chemical_compound chemistry law Electrode 0202 electrical engineering electronic engineering information engineering Water splitting General Materials Science Triiodide 0210 nano-technology |
| Zdroj: | Solar Energy. 191:420-426 |
| ISSN: | 0038-092X |
| Popis: | The synthesis of advanced functional nanomaterials for electrochemical applications, such as water splitting, dye-sensitized solar cells (DSCs), and supercapacitor has been the topic of interest in recent years. This work presents the synthesis of ruthenium (Ru)/reduced graphene oxide (RGO) nanocomposite by using a facile and scalable liquid plasma-assisted method and its application as an electrode material in electrochemical applications for supercapacitor and triiodide reduction at counter electrodes (CEs) of DSCs. As the results, Ru nanoparticles have a size in the range of 4–10 nm that were homogenously distributed on the surface of the RGO layer. Electrochemical measurements demonstrated that the synthesized material is suitable for supercapacitor applications, whereas the capacitance is approximately 136.7 F·g−1 at a scan rate of 20 mV·s−1. The developed materials are applied in CEs of DSCs. We found that the efficiency of 6.78% for DSCs with CE fabricated by Ru/RGO which is higher than that of 6.20% for a cell assembled with Pt electrode. |
| Databáze: | OpenAIRE |
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