|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Advanced Materials for Energy Conversion and Storage 2022
||Synthesis and Electrochemical Studies of Sodium β’’-Al2O3/10Sc1CeZr Composite as a Two Independent Phase Mixed Ion Conductor
||Pouyah Elahi, Taylor Sparks
|On-Site Speaker (Planned)
Ion conductors can be classified into one species, single-phase and multi-phase mixed ion conductors. One species ion conductors have been significantly studied. The main difficulty in tuning a single-phase class of conductors is the inter-dependency of the ions' transport and influence of one on the other species. In single-phase, mixed ion conductor systems, the thermodynamic properties of the whole system, such as operating temperature, chemical potential, and atmosphere composition, will affect the total conductivity. Here we used a method to synthesize, characterize, and electrochemically study a two-phase composite sodium β’’-Al2O3/10Sc1CeZr, oxygen and sodium ion conductors to tackle the complicity of the optimization and modification of the designed electrochemical system for multi-ion conductors. Since two phases constitute a contiguous composite, the ion transport properties are independent of other species; while electrochemical neutrality is globally and thermodynamic equilibrium is locally achieved.
||Energy Conversion and Storage, Ceramics, Characterization