An Active Oxygen Electrode for Proton‐Conducting Solid Oxide Electrolysis Cells with High Faradaic Efficiency
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 BaCo 0.8 Zr 0.1 Zn 0.1 O 3‐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.
Authors
- Zeyu Zhao (ORCID: https://orcid.org/0000-0001-8649-925X)
- Yuqing Meng (ORCID: https://orcid.org/0000-0003-3253-4069)
- Pengxi Zhu
- Quanwen Sun (ORCID: https://orcid.org/0000-0001-9947-8845)
- Wanhua Wang (ORCID: https://orcid.org/0000-0001-6460-6659)
- Wei Wu (ORCID: https://orcid.org/0000-0003-2067-7361)
- Hao Deng (ORCID: https://orcid.org/0000-0002-1656-229X)
- Dong Ding (ORCID: https://orcid.org/0000-0002-6921-4504)
- Bin Liu (ORCID: https://orcid.org/0000-0001-7890-7612)
- Qian Zhang (ORCID: https://orcid.org/0000-0002-2087-5280)
- Yuchen Zhang (ORCID: https://orcid.org/0000-0001-5734-948X)
- Meng Li (ORCID: https://orcid.org/0000-0002-0336-9271)
- Yong Ding (ORCID: https://orcid.org/0000-0001-5805-347X)
- Weilin Zhang (ORCID: https://orcid.org/0000-0003-2880-4492)
Institutions
- New Mexico State University (US)
- Georgia Institute of Technology (US)
- Kansas State University (US)
- Idaho National Laboratory (US)
- Storagenergy Technologies (United States) (US)
- Clemson University (US)
Publication Details
- Journal
- Advanced Energy Materials
- Published
- 2025-04-21
- DOI
- https://doi.org/10.1002/aenm.202500852
- Citations
- 8
- Primary Topic
- Advancements in Solid Oxide Fuel Cells
- Type
- article
- Field-Weighted Citation Impact
- 4.14
Funders
- U.S. Department of Energy
- Office of Energy Efficiency and Renewable Energy
- Idaho Operations Office, U.S. Department of Energy
- Hydrogen and Fuel Cell Technologies Office
- Office of Energy Efficiency