“…In order to solve the escalating environmental crisis resulting from the overconsumption and resource shortage of fossil fuels, hydrogen (H 2 ) has garnered extensive research interest as a promising energy carrier due to its merits of high energy density, clean combustion performance and sustainability. 1–4 However, the safe and efficient storage and transportation of H 2 , as well as on demand availability, are considered to be the major barriers for the hydrogen-based energy society. 5–7 Hydrazine borane (HB), a white solid substance with hydrogen content up to 15.4 wt%, has gained recognition as a potential chemical hydrogen storage material because of its easy synthesis, good chemical stability, and convenient hydrogen generation.…”