Publication date: 10th April 2024
For the next generation energy conversion and storage systems, the development of fuel cells and electrolysis cells is an important endeavor to achieve a sustainable and clean alternative energy source in support of the global sustainable development goals. Thus, R&D activities in developing green and reliable energy storage and conversion technologies are at the heart of successful incorporation in the power mix and securing global future energy needs. One of the research efforts at our laboratory focuses on development of a reversible solid oxide electrochemical cells (SOEC), from materials considerations to device fabrication. In this presentation, new material electrode composite compositions and synthesis methods such as for LSM-ScYSZ, Ni-ScSZ, and highly conducting solid electrolyte material of Sc and Y co-doped ZrO2 have been investigated and its electrochemical performance in a solid oxide fuel and electrolysis cell applications will be reported. For Sc and Y co-doped ZrO2, the XRD, Raman and PES analyses revealed the complementary structural characteristics of the material while SEM/EDS results showed the morphological and compositional analyses. The Sc and Y co-doped ZrO2 solid electrolyte thin film also revealed a high total conductivity of about 2.8x10-1 at 700 oC. In addition, I-V curves revealed the reversible performance of an electrolyte-supported fabricated single cell (5x5cm2) in both the fuel cell and electrolysis cell modes.
This study was financially supported by the Philippine-California Advanced Research Institute - Commission on Higher Education (CHED-PCARI) for IID 2018-009: Sustainable and Renewable Fuel and Electrolysis Cell Energy Device Technology (SureTech) Project, in part by the Department of Science and Technology Philippines Council for Industry, Energy, and Emerging Technology Research and Development (DOST-PCIEERD) for Extraction of Mineral Nickel and raw materials recovery Leveraging Philippines local resources for energy storage applications (E-Minerals) Project 2, and in part by the DOST Engineering Research and Development for Technology (DOST-ERDT).
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