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Meeting MS&T26: Materials Science & Technology
Symposium Ceramics for Clean Hydrogen
Presentation Title Thermochemistry and Ionic Conductivity in Layered Hexagonal Perovskites
Author(s) Kyle S. Brinkman, Joshua Willoughby, Nakeshma Cassel
On-Site Speaker (Planned) Kyle S. Brinkman
Abstract Scope Layered hexagonal perovskites possess high degrees of proton conductivity and are potential candidates for proton conducting electrolytes. Original reports of these materials reveal the existence of both proton and oxygen ion conductivity, however limited studies have focused on distinguishing the partial contributions of each ionic species. In this work, the impact of acceptor dopants in the layered hexagonal perovskite structure are studied with respect to the structure, composition, enthalpies of formation, proton transport numbers, and proton conductivity in Ba5Er2+xAl2Zr1-xO13 (BEAZ) under oxidizing conditions as compared to 𝑩𝒂𝟓𝑰𝒏𝟐+𝒙𝑨𝒍𝟐𝒁𝒓𝟏−𝒙𝑶𝟏𝟑 (BIAZ) analogues. This work represents the first known melt solution calorimetry on layered hexagonal perovskites.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Advancing Proton-Conducting Mixed Conductors Via Hydrogenation of n-Type Semiconductors: A Route Toward New Design Paradigms
B-Site Doping and Nanoparticle Exsolution in SFM Electrodes for SOEC Co-Electrolysis Applications
Boosted Oxygen Reduction/Evolution Reaction Activity in a Novel High-Entropy Double Perovskite Oxide for High-Performance Reversible Solid Oxide Electrochemical Cells
Bridging Fabrication and Function: Sintering Behavior, Microstructural Evolution, and Performance Optimization in Protonic Ceramic Electrochemical Cells
Ceramics for Clean Hydrogen: Development of Solid Oxide Cell Technology for Clean and Efficient Power Generation and Hydrogen Production
Comparison of Cr-Poisoning Mechanisms of Air Electrodes in Ceramic Proton and Oxide-Ion Conducting Electrochemical Cells
Coupled Effects of Local Conduction (O²⁻/n/p) on Oxygen Partial Pressure Profiles and Delamination in SOECs
Degradation of SOFC/EC Oxygen Electrode Investigated by Using Patterned Thin Film Model Electrode
Development of Electrode Materials and Anode Simulation for Ammonia Solid Oxide Fuel Cells
Direct Ink Writing of High Temperature Perovskite Catalysts for Solar Thermochemical Hydrogen Production
Dopant Arrangements in Acceptor-Doped Perovskite Oxides and Its Impact on Proton Conduction Uncovered by Machine-Learning Accelerated ab Initio Monte Carlo and Molecular Dynamics Simulations
Elucidating Transient Hydration Kinetics in BaZr0.1Ce0.7Y0.2O3-δ (BZCY172) Electrolytes Via In-Situ Spectroscopy
Engineered Oxide Heterointerfaces Enable Vacancy–Redox Coupling for Reversible Protonic Ceramic Cells
Fabrication and Performance Evaluation of Dense Proton-Conducting Solid Oxide Fuel Cells
Flat Tubular Protonic Ceramic Fuel Cells Fabricated Via Microextrusion-Based 3D Printing
From Laboratory Cells to Large-Area Devices: Critical Challenges in Proton-Conducting Electrolysis Cells
High-Throughput Fabrication and Evaluation of Protonic Ceramic Electrolysis Cells
High Entropy Perovskite Oxides for Clean Hydrogen Production
Improving Electrode Activity and Stability Through Nanocomposite and Crystal Chemical Strategies
Interfacial Insights from Secondary Batteries for Understanding Electrode Interface Stability in SOECs
Manufacturing Protonic Ceramic and Solid Oxide Electrolysis Cells for Scalable Clean Hydrogen Production
Mapping Structure–Property Relationships in Protonic Ceramic Fuel Cell Cathodes: From Surface Redox Chemistry to Combinatorial Discovery
Mitigating Chromium Poisoning of Air Electrodes in Solid Oxide Cells
Mode-Dependent Chromium Poisoning in LSC Oxygen Electrodes
Nanoionics Drastically Accelerating Mass Transfer at Elevated Temperatures Over 750 °C
Oxygen Electrode Materials Development for SOEC Operation at Lower Temperatures
Scalable Manufacturing and Interface Engineering of Protonic Ceramic Electrochemical Cells for Hydrogen Production
Temperature Induced Relaxation for Determining Oxygen Transport Properties of Mixed-Conducting Ceramics
Thermochemistry and Ionic Conductivity in Layered Hexagonal Perovskites
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