IrO2 modified Crystalline-PdO nanowires based bi-functional electro-catalyst for HOR/HER in acid and base

Ruthenium nanoparticles supported on Ni3N nanosheets as bifunctional electrocatalysts for hydrogen oxidation/evolution reactions

“…4c and Table S2†). 17,20,21,38–52 Surprisingly, it even surpasses some Pt-based catalysts such as PtRu/Mo 2 C–TaC 17 ( i 0 = 3.78 mA cm geo −2 ), Pt 3 Co 43 ( i 0 = 2.4 mA cm geo −2 ) and PtMo–CeO x –NAs 47 ( i 0,m = 0.231 mA μg Pt −1 ), and some other PGM-based composites, such as RuRh–OM 45 ( i 0 = 1.91 mA cm geo −2 ), (Pt 0.9 Pd 0.1 ) 3 Fe 40 ( i 0,m = 0.3115 mA μg PGM −1 ) and Pd 0.33 Ir 0.67 /N–C 41 ( i 0,m = 0.481 mA μg PGM −1 ).…”

“…4c and Table S2 †). 17,20,21,[38][39][40][41][42][43][44][45][46][47][48][49][50][51][52] Surprisingly, it even surpasses some Pt-based catalysts such as This journal is © The Royal Society of Chemistry 2023 samples, the enhanced HOR activity is mainly attributed to the synergistic effect between the Ru and Ni 3 N supports. In previous reports, it is common to nd that HBE is a signicant descriptor for HOR performance 13 and the catalysts with optimal HBE oen exhibit excellent HOR activity.…”

Electrocatalytic Oxidation of Urea and Ethanol on Two-Dimensional Amorphous Nickel Oxide Encapsulated on N-Doped Carbon Nanosheets

“…A variety of carbonaceous materials have been used in electrocatalysts to improve their electrochemical properties, including graphene, graphitic carbon nitride, and N-doped carbon . Moreover, catalysts and supports work synergistically to enhance catalytic activity . As reported by Feng et al, water splitting activity of electrocatalysts is influenced by the interface and support.…”

Regulating the Surface Electronic Structure of RuNi Alloys for Boosting Alkaline Hydrogen Oxidation Electrocatalysis

“…Besides, Markovic et al have verified that the ideal alkaline HOR electrocatalysts need to meet the optimal balance of HBE and OHBE, which has been confirmed in CeO x -decorated Pd/C and Ir/O-MoO 2 . , In this case, the properly strengthened oxophilicity of RuNi probably accelerates the Volmer step to achieve enhanced HOR activity in the alkaline electrolytes. However, it is difficult to introduce an appropriate proportion of oxophilic components into the alkaline HOR electrocatalysts. , Generally, too weak OHBE results in a lack of OH* to combine H* to form H 2 O, while too strong OHBE will generate more adsorbed H 2 O* on the oxophilic sites and thus deteriorate the alkaline HOR kinetics. − Therefore, it is extremely necessary to rationally induce foreign components to endow RuNi alloys with appropriate HBE/OHBE to accelerate the alkaline HOR kinetics.…”