One-step fabrication of inorganic [Ca24Al28O64]4+(4e−) from transition metal and oxide compound precursors by reactive sintering
Source abstract
Abstract
Abstract Inorganic [Ca24Al28O64]4+(4e−) (C12A7:e−) has been directly synthesized by reactive sintering of CaO, Al2O3, and Ca powders at 1200 °C in a vacuum for 20 min. The electron concentration in the as-prepared C12A7:e− was enhanced up to 2.1 × 1021 cm−3 by simply regulating the addition amounts of Ca, covering metallic conductivity. The electronic structure results indicated the existence of homogeneous trapped electrons in the lattice. Further thermal analyses illustrated that Ca made a dual function of in-situ reducing agent and significantly decreasing the generation temperature of mayenite phase. These results provided a potential path in the fabrication of high-quality C12A7:e− toward massive productions, laying a foundation for practical applications such as electron emission and catalyst support.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Ammonia Synthesis and Nitrogen Reduction · Layered Double Hydroxides Synthesis and Applications · Catalytic Processes in Materials Science
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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