Key Laboratory of Eco-chemical Engineering, Ministry of Education, International Science and Technology Cooperation Base of Eco-chemical Engineering and Green Manufacturing, Qingdao University of Science and Technology, Qingdao 266042, PR China; College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, PR China.
Cardiff University Business School (CARBS), United Kingdom.
J Colloid Interface Sci. 2022 Dec 15;628(Pt B):1061-1069. doi: 10.1016/j.jcis.2022.08.128. Epub 2022 Aug 24.
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)/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 process of the electrochemical reaction. Then, the as-synthesized Ru-Cu(OH)/CF electrocatalyst exhibits impressive electrocatalytic performance for HER with 45, 80 and 50 mV to drive 10 mA cm in 1.0 M KOH, 1.0 M phosphate-buffered saline (PBS) and 0.5 M HSO, 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.
开发具有低过电位的高效稳定电催化析氢反应（HER）催化剂是实现大规模氢气商业化的关键。在此，通过表面化学氧化和随后的溶剂热过程，在泡沫铜上制备了 Ru 掺杂的非晶态中空氧化铜纳米线（Ru-Cu（OH）/CF）。空心 3D 纳米线结构可以提供丰富的可及活性位点，促进电解质的过滤，并在电化学过程中促进气体扩散。然后，所合成的 Ru-Cu（OH）/CF 电催化剂在 1.0 M KOH、1.0 M 磷酸盐缓冲盐水（PBS）和 0.5 M HSO 中分别以 45、80 和 50 mV 的过电位驱动 10 mA cm 的 HER 表现出令人印象深刻的电催化性能，具有显著的长期稳定性。此外，可持续能源可以为两个电极装置提供大量的氢气生成。该策略可能特别有利于探索用于 HER 的简单合成和高性能催化剂。
