Electrochemical Properties of a Co-Doped SrSnO3−δ-Based Semiconductor as an Electrolyte for Solid Oxide Fuel Cells
Source abstract
Abstract
Tuning semiconductors as an electrolyte for advanced low-temperature fuel cells is an exciting but challenging research subject. To realize this, we develop the cobalt-doped SrSnO3 (SrCo0.1Sn0.9O3−δ and SrCo0.2Sn0.8O3−δ) toward an electrolyte, which only permits ions to pass but blocks the electrons simultaneously. The SrCo0.2Sn0.8O3−δ electrolyte fuel cell has achieved a remarkable performance with a maximum power density of 476 mW cm–2 and obtained a high ionic conductivity of 0.12 S cm–1 at a low temperature of 520 °C. This improved performance is accredited to the bandgap engineering and built-in electric field, which significantly enhanced the ionic transport while suppressing the electronic conduction. The doped SrCoSnO3−δ perovskite materials demonstrated a high potential for solving the low-temperature solid oxide fuel cell (LT-SOFC) material’s challenging problems.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Electronic and Structural Properties of Oxides · Advancements in Solid Oxide Fuel Cells · Magnetic and transport properties of perovskites and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Engineering Research Center of Nano-Geo Materials of Ministry of Education, Department of Materials Science and Chemistry, China University of Geosciences, 388 Lumo Road, Wuhan 430074, China
School of Energy and Environment, Southeast University, No. 2 Si Pai Lou, Nanjing 210096, China
Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials, Faculty of Physics and Electronic Science, Hubei University, Wuhan, Hubei 430062, China
Zhejiang Province Key Laboratory of Quantum Technology and Devices and Department of Physics and State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China
Funding
Ministry of Education of the People's Republic of China · National Natural Science Foundation of China
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