Designing High Interfacial Conduction beyond Bulk via Engineering the Semiconductor–Ionic Heterostructure CeO<sub>2−δ</sub>/BaZr<sub>0.8</sub>Y<sub>0.2</sub>O<sub>3</sub> for Superior Proton Conductive Fuel Cell and Water Electrolysis Applications
Yueming Xing, Bin Zhu, Hong Liang, Xia Chen, Baoyuan Wang, Yan Wu, Hongdong Cai, Sajid Rauf, Jianbing Huang, Muhammad Imran Asghar, Yang Yang, Wen‐Feng Lin
Abstract
production rate, under 2.0 V at 520 °C. The band structure and a built-in-field-assisted proton transport mechanism have been proposed and explained. This work demonstrates an efficient way of tuning the electrolyte from low bulk to high interfacial proton conduction to attain sufficient conductivity required for PCFCs, electrolyzers, and other advanced electrochemical energy technologies.
Topics & Concepts
ElectrolyteConductivityMaterials scienceThermal conductionHeterojunctionSemiconductorProtonCeramicElectrochemistryIonic conductivityGrain boundaryChemical engineeringChemistryOptoelectronicsPhysical chemistryElectrodePhysicsMicrostructureMetallurgyComposite materialEngineeringQuantum mechanicsAdvancements in Solid Oxide Fuel CellsFuel Cells and Related MaterialsElectronic and Structural Properties of Oxides