A carregar...
Publicação
Ultrafine Ru on Reduced Graphene Oxide-La2O3 Binary Support for Highly Efficient Hydrogen Evolution Reaction
| Nome: | Descrição: | Tamanho: | Formato: | |
|---|---|---|---|---|
| 4.67 MB | Adobe PDF |
Orientador(es)
Resumo(s)
Ru-based catalysts are recognized as one of the most competitive candidates for hydrogen evolution reaction
(HER). Nonetheless, reducing Ru loading and maximizing atomic utilization remain paramount priorities for
achieving optimal cost efficiency. Herein, the ultrafine Ru nanoparticles loaded on a reduced graphene oxide-
La2O3 binary support (Ru/La2O3-rGO) was rationally designed via a simple liquid impregnation method with a
low-content Ru of 6.1 wt%. Benefitting from the synergistic interplay of the binary substrate, Ru/La2O3-rGO
achieves a current density of 10 mA cm 2 at an ultrasmall overpotential of 15.8 mV for alkaline HER, outperforming
Pt/C, while also exhibiting good stability and high intrinsic activity. This work offers novel insights
into the rational design of high-performance, stable, and cost-effective Ru-based HER catalysts.