The unique core-shell structure drives the richness and high utilization of Ru species to stimulate the HER performance exceeding Pt
- Key Words:钌纳米颗粒;钌掺杂;核壳结构;产氢反应
- Abstract:It is challenging to synchronously introduce Ru nanoparticles with strong H* adsorption ability and Ru dopants with excellent electronic regulation to improve hydrogen evolution reaction (HER) performance. With these in mind, this work creatively adopts the capture&ions exchange strategy to construct the Ru@HMCS/Ru-CoP catalyst with the Ru nanoparticles-coated hollow mesoporous carbon spheres (HMCS) shell and the Ru-doped CoP core. Notably, Ru nanoparticles and Ru dopants synergistically promote the optimization of HER kinetics. Moreover, the unique core-shell structure effectively increases the active area, conductivity, and structural stability of Ru@HMCS/Ru-CoP. As expected, the eta 10 value of Ru@HMCS/Ru-CoP catalyst (2.9 mV) is 48.8 mV lower than that of Pt/C (51.7 mV). In summary, this work greatly improves the utilization of noble metal atoms and points out the direction for the development of electrocatalysts with low-load noble metal content.
- Volume:365
- Issue:-
- Translation or Not:no
Pre One:
泡沫镍上钌负载多孔二氧化钛的合成及其在光辅助电催化析氢中的应用