High Performance Core/Shell Ni/Ni(OH) ₂ Electrospun Nanofiber Anodes for Decoupled Water Splitting

Decoupled water splitting is a promising new path for renewable hydrogen production, offering many potential advantages such as stable operation under partial-load conditions, high-pressure overall system robustness, and higher safety levels. Here, the performance of electrospun core/shell nickel/nickel hydroxide anodes demonstrated in an electrochemical-thermally activated chemical decoupled process. The high surface area hierarchical porous electrode structure improves utilization efficiency, charge capacity, current density redox anode while maintaining process efficiency. reach average densities 113 mA cm−2 at working 1.48 VRHE 64 1.43 VRHE, with Faradaic efficiency nearly 100% no H2/O2 intermixing membrane-free cell.