Solid Oxide Cells and Oxygen-Vacancy Catalysis
This community develops ceramic materials and catalysts for electrochemical energy conversion and the treatment of industrial exhaust gases, focusing on the manipulation of oxygen vacancies to enhance reaction rates.
The work centers on solid oxide fuel cells (SOFCs) and solid oxide electrolysis cells (SOECs), with a heavy emphasis on cerium oxide (ceria) and perovskite oxides. Recurring themes include the selective catalytic reduction of nitrogen oxides (NOx), the oxidation of volatile organic compounds (VOCs) like toluene, and the water-gas shift reaction. Researchers frequently engineer oxygen vacancies in materials such as doped ceria and CeO2 catalysts to improve activity for methane oxidation, CO reduction, and hydrogen production. The technical focus is on lowering operating temperatures, stabilizing catalysts at intermediate temperatures, and optimizing the surface chemistry of these oxide materials for efficient electrocatalysis and catalytic combustion.
The largest share of the community's output is found in cerium research, accounting for 24.4% of all cerium research and representing 18,385 papers here. Zirconium and yttrium also show significant engagement, with shares of 4.3% and 4.4% of their respective element research, respectively.
The community comprises 75,123 papers, with the highest publication volumes appearing in Solid State Ionics, the International Journal of Hydrogen Energy, and the Journal of Power Sources.
Recent work continues to focus on defect engineering in ceria, high-entropy perovskite cathodes for solid oxide fuel cells, and advanced catalysts for low-temperature oxidation of methane and propane.