Scalable Solution-Processed Electrolyte Membranes with Optimized Microstructure for High-Performance Protonic Ceramic Electrochemical Cells.

Anshu Kumari, Shuanglin Zheng, Saroj Karki, Idris Temitope Bello, Jiufeng Ruan, Yuqi Geng, Hanping Ding

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Article in ACS applied materials & interfaces, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

7 authors.

Anshu KumariSchool of Aerospace and Mechanical Engineering, University of Oklahoma, Norman, Oklahoma 73019, United States.

Shuanglin ZhengSchool of Aerospace and Mechanical Engineering, University of Oklahoma, Norman, Oklahoma 73019, United States.ORCID 0009-0004-3094-4659

Saroj KarkiSchool of Aerospace and Mechanical Engineering, University of Oklahoma, Norman, Oklahoma 73019, United States.

Idris Temitope BelloSchool of Aerospace and Mechanical Engineering, University of Oklahoma, Norman, Oklahoma 73019, United States.

Jiufeng RuanSchool of Aerospace and Mechanical Engineering, University of Oklahoma, Norman, Oklahoma 73019, United States.ORCID 0009-0002-1235-8379

Yuqi GengSchool of Aerospace and Mechanical Engineering, University of Oklahoma, Norman, Oklahoma 73019, United States.

Hanping DingSchool of Aerospace and Mechanical Engineering, University of Oklahoma, Norman, Oklahoma 73019, United States.ORCID 0000-0002-8734-7933

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Proton-conducting electrochemical cells (PCECs) are promising for efficient hydrogen production, but achieving dense, uniform, thin electrolyte layers remains a key challenge, particularly for scalable fabrication. Here, we present a solution-processed deposition approach with a mechanistically optimized slurry for uniform electrolyte formation. By tailoring particle size distribution, solid loading, and solvent/additive balance, we regulated wetting behavior and evaporation kinetics of the electrolyte slurry to promote homogeneous electrolyte particle packing. These features facilitate tight grain boundary contact and early stage neck growth during sintering, eliminating residual porosity, and improving mechanical integrity. The resulting ∼15 μm thick electrolyte shows high density, strong electrode adhesion, and stable interfaces outperforming the previously reported spray-based fabricated electrolyte by about 31% at 600 °C in FC mode. Single cells deliver 0.962 W cm

Indexed as

dense microstructureproton-conducting electrochemical cellssolution optimizationthin-film depositionwet powder spraying

Identifiers

PMID41326025

DOI10.1021/acsami.5c16287

PMCPMC12723646

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.