Production of NiO/N-doped carbon hybrid and its electrocatalytic performance for oxygen evolution reactions
| Autor: | Dawoon Jang, Haeju Kim, Sungjin Park, Sujin Seok |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology 010402 general chemistry Electrochemistry 01 natural sciences Catalysis Inorganic Chemistry Metal Materials Chemistry Renewable Energy Sustainability and the Environment Process Chemistry and Technology Organic Chemistry Non-blocking I/O Oxygen evolution 021001 nanoscience & nanotechnology 0104 chemical sciences Anode Chemical engineering chemistry visual_art Ceramics and Composites visual_art.visual_art_medium 0210 nano-technology Hybrid material Carbon |
| Zdroj: | Carbon Letters. 30:485-491 |
| ISSN: | 2233-4998 1976-4251 |
| Popis: | Oxygen evolution reaction (OER) is an essential step at an anode in electrochemical water-splitting process and requires efficient electrocatalysts to reduce overpotentials. Although precious metal-based materials, such as RuO2, IrO2 and their hybrids with other components, performed excellently as OER electrocatalysts, their high cost has limited practical applications. Consequently, earth-abundant metal components including Fe, Co, and Ni have been investigated as alternatives. In this work, the hybridization of Ni-containing species with conductive carbon-based materials was used to prevent aggregation of active species and improve electrochemical catalytic performance. A new hybrid material composed of NiO nanoparticles and N-doped carbon materials was prepared. The NiO particles with a narrow size distribution were well dispersed on the surface of carbon-based materials. The hybrid showed improved electrocatalytic performance for OER than single components of NiO and N-doped carbon materials. |
| Databáze: | OpenAIRE |
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