Hollow-structured amorphous Cu(OH)(x) nanowires doped with Ru for wide pH electrocatalytic hydrogen production
关键字：EVOLUTION REACTION; POROUS CARBON; EFFICIENT; SITES; ALLOY
摘要：Developing efficient and stable catalysts for electrocatalytic hydrogen evolution reaction (HER) with low overpotential is the key point to realizing large-scale hydrogen commercialization. Herein, Ru doped amorphous hollow copper hydroxide nanowires on copper foam (Ru-Cu(OH)(x)/CF) is prepared by surface chemical oxidization and following solvothermal process. The hollow 3D nanowire structure can provide abundant accessibility active sites, promote electrolyte in filtration and facilitate gas diffusion in the pro-cess of the electrochemical reaction. Then, the as-synthesized Ru-Cu(OH)(x)/CF electrocatalyst exhibits impressive electrocatalytic performance for HER with 45, 80 and 50 mV to drive 10 mA cm(-2) in 1.0 M KOH, 1.0 M phosphate-buffered saline (PBS) and 0.5 M H2SO4, respectively, with remarkable long-term stability. Moreover, sustainable energies can power the two-electrode setup with amounts of hydrogen generation. The strategy may be particularly beneficial to explore simple synthesis and high-performance catalysts for HER. (C) 2022 Elsevier Inc. All rights reserved.
卷号：628
期号：
是否译文：否
