Polycrystalline H3O+-β/β″-Alumina: A Designed Composite for Steam Electrolysis
The synthesis of polycrystalline H3O + -β/β″-Al2O3 ceramics is described. Design principals are detailed wherein the appropriate strength and conductivity are developed in a precursor K/Na- β/β″-Al2O3 ceramic based on microstructural refinement and mixed-alkali/percolation principals respectively. The resulting polycrystals are evaluated in steam electrolysis cells at 100° and 300°C.
KeywordsA1203 Phase Scan Transmission Electron Microscopy Conduction Plane Resistive Phase Mixed Alkali
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