An Active Oxygen Electrode for Proton‐Conducting Solid Oxide Electrolysis Cells with High Faradaic Efficiency
Source abstract
Abstract
Abstract Addressing the challenges posed by inferior electrochemical performance at low temperatures and the uncertain Faradaic efficiency (FE) represents a pivotal undertaking in the development of high performance and efficient proton‐conducting solid oxide electrolysis cells (P‐SOECs). In this work, a novel oxygen electrode material BaCo0.8Zr0.1Zn0.1O3‐δ (BCZZ) is first designed and synthesized. At 600 °C, P‐SOECs with BCZZ oxygen electrode achieve an electrolysis current density of 1.98 A cm−2 with an ≈90% FE at 1.3 V. Utilizing 1‐inch P‐SOECs as a reliable platform, the effect of extrinsic operating conditions (i.e., steam concentration, voltage, current density, and temperature) and intrinsic properties of P‐SOECs (i.e., electrolyte material and electrolyte thickness) on FE are further systemically investigated, both experimentally and theoretically.
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Research context
OpenAlex topics: Advancements in Solid Oxide Fuel Cells · Catalysis and Oxidation Reactions · Chemical Looping and Thermochemical Processes
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Energy and Environmental Science and Technology Idaho National Laboratory Idaho Falls ID 83401 USA
Storagenergy Technologies, Inc. Salt Lake City UT 84104 USA
School of Materials Science and Engineering Georgia Institute of Technology Atlanta GA 30332 USA
Department of Chemical and Materials Engineering New Mexico State University Las Cruces NM 88003 USA
Department of Materials Science and Engineering Clemson University Clemson SC 29634 USA
Tim Taylor Department of Chemical Engineering Kansas State University Manhattan KS 66506 USA
Funding
Hydrogen and Fuel Cell Technologies Office
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