Clean H2 production at room temperature using CuPd/TiO2 catalytic hypophosphite hydrolysis.

Abstract

A safe, clean, and cost-effective H2 production system is critically important for developing hydrogen energy. Sodium hypophosphite (NHP) represents a promising hydrogen carrier due to its high stability, low cost, and abundance. NHP can hydrolyse under mild conditions to yield H2 without any gaseous by-products. In this work, we report clean and efficient H2 production at room temperature using CuPd/TiO2 catalytic NHP hydrolysis with the rate of 13.53 mL·min-1 (135.3 mL·min-1·g-1) and 100% NHP conversion within 30 min. The catalyst also exhibits excellent recyclability toward H2 production. The two metals in CuPd/TiO2 exhibit a synergistic effect, Cu can facilitate the activation and dissociation of water, whereas Pd sites accelerate the activation and dehydrogenation of H2PO2-. This work develops a new cost-economic and highly efficient catalytic H2 production system, which is expected to contribute to development of hydrogen economy.

Abstract as supplied by the indexing source. © the authors / publisher.