Topic: Materials, Technologies, and Systems for the Hydrogen Energy Value Chain

Hydrogen is a key energy carrier for achieving low-carbon and sustainable energy systems. Advancing the hydrogen economy requires innovations across the entire value chain, from low-carbon hydrogen production and purification to storage, transportation, distribution, and end-use applications. This Special Issue aims to highlight recent advances in materials, catalysts, devices, and integrated systems that enhance the efficiency, safety, durability, and scalability of hydrogen technologies.

Topics of interest include, but are not limited to:

● Low-carbon hydrogen production, including water electrolysis and photo/electrochemical technologies;

● Hydrogen purification, separation, storage, and transportation;

● Advanced catalysts, membranes, electrodes, and hydrogen storage materials;

● Fuel cells, hydrogen utilization, and hydrogen-based industrial applications;

● Hydrogen infrastructure, safety, durability, and reliability;

● Renewable hydrogen integration and integrated energy systems;

● Sustainability, life-cycle assessment, and techno-economic analysis;

● Emerging technologies, including AI-driven optimization and digitalization.

We welcome Original Research Articles, Reviews, Perspectives, and Short Communications addressing fundamental mechanisms, technological innovations, and system-level advances that contribute to a safe, efficient, and sustainable hydrogen energy value chain.