Jie Qi

Self-foaming sintering-resistant iron-tungsten powders enable high-cycle thermochemical hydrogen storage

H2-H2O redox cycling of iron powder beds at 650-800 °C offers a compact, safe, economical hydrogen storage method, but sintering-induced capacity loss has stalled its scalability for decades. Here, we show that adding redox-active tungsten to Fe powders solves this problem in sta...