Porous Cu–Ni-YSZ cermets using CH4 fuel for SOFC
| Autor: | Yu-Chien Lin, Wen-Cheng J. Wei |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
chemistry.chemical_classification
Materials science Renewable Energy Sustainability and the Environment Metallurgy Oxide Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology Cermet 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Catalysis chemistry.chemical_compound Cracking Nickel Fuel Technology Hydrocarbon chemistry 0210 nano-technology Porosity Yttria-stabilized zirconia |
| Zdroj: | International Journal of Hydrogen Energy. 45:24253-24262 |
| ISSN: | 0360-3199 |
| Popis: | Thin and porous anodes need three important properties, high porosity, moderate catalytic ability, and no carbon deposition, when using hydrocarbon fuels for the operation of solid oxide fuel cells (SOFCs). Nickel-based (Ni/YSZ) cermets might perform serious carbon deposition using hydrocarbon fuels. Instead, many researches select Cu-based cermets to extend the application period. This study chose half replaced cermet (50%Cu–Ni in Y-doped ZrO2), and verified the effects of H2 formation and carbon deposition comparing to other two series, i.e. Ni-YSZ and Cu-YSZ. Three ingredients were homogeneously mixed and reduced, then sintered to the porosity of 54 ± 3%. The re-dox properties under various atmospheres and the permeability of made cermets have been investigated. The results showed that 50%Cu–Ni with 8YSZ performed moderate catalytic ability, low cracking rate for CH4, and good electric conductivity of 1503 S cm−1 at 650 °C. The sample is suitable for using CH4 fuel for SOFCs. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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