上海科技大学知识管理系统

Decoupled water electrolysis is a feasible technique for the large-scale production of high-purity H-2, in which heteropolyacids are attractive electron-coupled proton buffers. An aqueous Zn-phosphomolybdic acid battery is designed for the simultaneous generation of reduced phosphomolybdic acid and electricity. The reported Zn-phosphomolybdic acid battery possesses an open circuit voltage of similar to 1.50 V, and the coulombic efficiency of the Zn-phosphomolybdic acid battery can remain at a high level (>90%). Furthermore, the reduced phosphomolybdic acid can be used as an active electron-coupled proton buffer for efficient decoupled hydrogen production from alkaline water electrolysis in the presence of highly dispersed ultrafine Pt nanoparticles (similar to 2.0 nm) on nickel-cobalt hydroxide nanosheets at a low Pt loading (0.4 mg cm(-2)) as a free-standing electrode.