A review on reactor design parameters of sodium borohydride (NaBH₄ ) hydrolysis

Sodium borohydride (NaBH₄ ) is a promising hydrogen storage medium, but its practical implementation remains challenging. The aim of this study is to examine the effect of critical parameters, to investigate the methods and techniques used in the literature, and to provide information about the issues affecting the reactor design of NaBH₄ hydrolysis. In this way, it is expected that the study will contribute to the commercialization of sodium borohydride and commercial product development efforts. This study discusses the effects of various parameters, such as NaBH₄ ratio, sodium hydroxide (NaOH) ratio, fuel flow rate, temperature, and pressure. The manuscript also introduces reactor designs, materials, separation, and purification methods. Additionally, the study highlights challenges related to catalyst durability and the transient behavior of the reactor.