Proton-conducting oxides for energy conversion and storage
Top Cited Papers
Open Access
- 1 March 2020
- journal article
- review article
- Published by AIP Publishing in Applied Physics Reviews
- Vol. 7 (1), 011314
- https://doi.org/10.1063/1.5135319
Abstract
Proton-conducting oxides are a class of solid-state ion-conducting ceramic materials that demonstrate significant hydrogen ion (proton) conductivity at intermediate temperatures (e.g., 300–700 °C). They are garnering significant attention due to several unique characteristics that distinguish them from both higher temperature oxygen ion conducting oxides and lower temperature proton-conducting polymers. By enabling proton-mediated electrochemistry under both dry and wet environments at moderate temperatures, protonic ceramics provide unique opportunities to enhance or synergize a diverse range of complementary electrochemical and thermochemical processes. Because of this potential, significant efforts have been devoted to advancing numerous energy-related applications using these materials. This review aims to comprehensively summarize these applications and analyze the most up-to-date and future developments of proton-conducting oxides. We aim to bring together this diverse subject matter by integrating the fundamentals of proton-conducting oxides with application-oriented insights. We begin with a historical roadmap, followed by a basic overview of the materials, theories and fundamentals, and fabrication and processing technologies underlying the field. The central section of our review summarizes major applications and developments of proton-conducting ceramics, ranging from maturing applications approaching commercialization to embryonic technologies just now emerging from the lab. These include protonic ceramic fuel cells, protonic ceramic electrolysis cells, reversible protonic ceramic electrochemical cells, protonic ceramic membrane reactors, and protonic ceramic electrochemical reactors. For each application, we analyze both the prospects and challenges and offer recommendations for future research directions so that tomorrow's researchers can continue to advance the development and commercialization of these fascinating materials.Keywords
Funding Information
- Faculty Research Funding from Kansas State University
- U.S. Department of Energy (DE-AR0000808)
- U.S. Department of Energy (DE-AR0000493)
- U.S. Department of Energy (DE-FE0031716)
- Office of Naval Research (N00014-16-1-12780)
- Army Research Office (W911NF-17-1-0051)
This publication has 223 references indexed in Scilit:
- Stabilizing Nanostructured Solid Oxide Fuel Cell Cathode with Atomic Layer DepositionNano Letters, 2013
- A promising cathode for intermediate temperature protonic ceramic fuel cells: BaCo0.4Fe0.4Zr0.2O3−δRSC Advances, 2013
- Promotion of water-mediated carbon removal by nanostructured barium oxide/nickel interfaces in solid oxide fuel cellsNature Communications, 2011
- Solid-state electrochemical synthesis of ammonia: a reviewJournal of Solid State Electrochemistry, 2011
- Ammonia synthesis at atmospheric pressure using a reactor with thin solid electrolyte BaCe0.85Y0.15O3−α membraneJournal of Membrane Science, 2010
- A Fifteen Year Record of Global Natural Gas Flaring Derived from Satellite DataEnergies, 2009
- Protonic membrane for fuel cell for co-generation of power and ethyleneJournal of Power Sources, 2008
- Proton conducting composite membrane from sulfonated poly(ether ether ketone) and boron orthophosphate for direct methanol fuel cell applicationJournal of Membrane Science, 2007
- Hydrothermal Post-synthesis of HZSM-5 Zeolite to Enhance the Coke-resistance of Mo/HZSM-5 Catalyst for Methane DehydroaromatizationCatalysis Letters, 2006
- High-performance lanthanum-ferrite-based cathode for SOFCSolid State Ionics, 2005