Confining ultrafine Ru clusters into TiO2 lattice frameworks to yield efficient and ultrastable electrocatalysts towards practical hydrogen evolution

Enhanced interaction between Ru nanoparticles and N, C-modified mesoporous TiO2for efficient electrocatalytic hydrogen evolution at all pH values

“…In addition, the synergetic catalytic effect of Ru and N-TiO 2 /C exists under all pH conditions. Based on previous literature reports, [54][55][56][57][58][59] in neutral and alkaline electrolytes, Ru@N-TiO 2 /C has high adsorption strength towards H 2 O molecules. And this can boost the water dissociation into H + and OH − , which are then respectively captured by negative-charged N-TiO 2 /C and positive-charged Ru sites in neutral or alkaline electrolytes (eqn (1) and ( 2)).…”

Size‐Defined Ru Nanoclusters Supported by TiO2 Nanotubes Enable Low‐Concentration Nitrate Electroreduction to Ammonia with Suppressed Hydrogen Evolution

“…[11] In particular, Ru sites are reported to exhibit strong hydrogen adsorption, which facilitates hydrogenation steps in various catalytic reactions. [12] For ammonia electrosynthesis with multiple proton transfer steps, Ru-based catalysts have been reported with optimal NO 3 ˉ-to-NH 3 conversion under a low overpotential. [13] Unfortunately, the competing HER still dominates the majority of active sites at more negative potentials due to high proton affinity of Ru species.…”

Anchored RuSe2nanospheres on Co–N–C nanosheets boost electrocatalytic alkaline hydrogen evolution

“…Hydrogen, as promising green energy, can effectively alleviate environmental pollution caused by fossil energy. [1][2][3][4] Water electrolysis is an effective strategy to obtain high quality hydrogen. [5][6][7][8] In the past decades, Pt-based electrocatalysts with excellent performance in alkaline media have been considered suitable HER catalysts for water electrolysis.…”