Proton-conducting ceramic electrochemical devices (PCCs) show promise for sustainable energy conversion, yet key challenges remain. This perspective highlights critical areas for advancing PCC research. The field requires standardized protocols for fabrication, testing, and results reporting. Improved electrolyte sintering techniques and minimized nickel-induced defects are imperative for stable, high-performing cells. Addressing materials criticality is essential for commercialization.

This study focuses on establishing a standardized dynamic operation protocol for testing Solid Oxide Electrolysis Cells (SOECs), highlighting their potential in dynamic energy applications due to their high efficiency, flexibility, and adaptability to dynamic conditions. Detailed documentation of sample preparation, selection of sealing materials, design of test equipment, testing parameters and cautions for dynamic cell testing is provided.

Photoelectrochemical (PEC) water splitting is a promising technology for green hydrogen production by harnessing solar energy. Traditionally, this sustainable approach is studied under light intensity of 100 mW/cm2 mimicking the natural solar irradiation at the Earth’s surface. Sunlight can be easily concentrated using simple optical systems like Fresnel lens to enhance charge carrier generation and hydrogen production in PEC water splitting. Despite the great potentials, this strategy has not been extensively studied and faces challenges related to the stability of photoelectrodes.

The harmonization of testing protocols for proton exchange membrane (PEM) electrolyzers is essential for ensuring accurate and reliable performance assessments and accelerating the development of hydrogen production technologies. This protocol provides a structured approach to PEM electrolyzer setup and testing, incorporating key considerations for test station design and single-cell characterization techniques.

This study presents the validation of protocols for measuring ion exchange capacity (IEC) and alkaline stability of anion exchange membranes (AEMs) for low-temperature water electrolysis. While protocols are often tested within individual laboratories, their results across multiple laboratories with varying equipment, environmental conditions, and personnel qualification remain unverified.

The increasing demand for efficient and sustainable hydrogen production has driven significant advancements in water electrolysis technologies. Among these, liquid alkaline water electrolysis (LAWE) stands out for its cost-effectiveness and scalability.

Published elsewhere: L. Zhou, W. Li, M.P. Brady, Z. Zeng, L. Ma, Y. Wang, S. Hu, X. Liu. Improved Assessment of Chromium Evaporation Rates in Solid Oxide Cell Balance of Plant Component Alloys. High Temperature Corrosion of Materials 2023. DOI: 10.1007/s11085-023-10207-w