Ultrathin Carbon Coating and Defect Engineering Promote RuO₂ as an Efficient Catalyst for Acidic Oxygen Evolution Reaction with Super‐High Durability (Adv. Energy Mater. 23/2023)

High activity and excellent durability of oxygen-vacancy-rich ruthenium manganese oxide solid-solution nanowires for the oxygen evolution reaction in acidic media

“…3a shows that the OER catalysed by the V-Ru x Mn 1−x O 2 NWs has an onset potential of 1.37 V (E on ) and they only need an overpotential of ∼200.0 mV to drive a current density of 10 mA cm −2 (h 10 ). The OER activity of the V-Ru x Mn 1−x O 2 NWs is much higher than those of com-RuO 2 (E on = 1.44 V and h 10 = 302.0 mV, close to the reported values 10,24 ) and commercial IrO 2 (com-IrO 2 , E on = 1.47 V and h 10 = 330 mV, close to the reported values 25,26 ). In particular, the h 10 value of V-Ru x Mn 1−x O 2 NWs is lower than that of other acidic OER catalysts reported recently, such as Ni-RuO 2 (214.0 mV) 18 and Si-RuO x @C (220.0 mV) 24 (Table S1 †).…”

“…3 Tremendous work has demonstrated that the electronic structure of the active sites is the major factor determining the activity of the catalysts, since it governs the adsorption of reactants, the transformation of intermediates, and the desorption of products. 10 Generally, the methods used for the modulation of the electronic structure of the active sites include metal doping, 11 vacancy generation, 12 active facet control, 13 heterostructuring, 7 etc. As reported previously, metal doping can optimize the electronic structure of the active sites at the catalyst surface through charge redistribution, which lowers the energy barrier of the rate-determining step (RDS) for the OER.…”

Hollow‐Structured and Polyhedron‐Shaped High Entropy Oxide toward Highly Active and Robust Oxygen Evolution Reaction in a Full pH Range

“…These findings underscore the high intrinsic catalytic activity of ZnFeNiCuCoRu‐O in the OER. [ 20 ] In addition, the alkaline OER performance of the ZnFeNiCuCoRu‐O catalysts outperforms most previously reported OER electrocatalysts (Figure S12b and Table S4, Supporting Information) in terms of η 0.1 mA cm −2 (ECSA) .…”

Research progress on layered metal oxide electrocatalysts for an efficient oxygen evolution reaction

“…[27][28][29] Since the electrolysis of water for hydrogen production has entered the field of research, a large number of metal-based OER catalysts have been developed, spanning metal oxides, sulfur compounds, nitrides, phosphides, and beyond. [30][31][32][33] Two-dimensional materials including metal halides, metal oxides, metal hydroxides have attracted much attention due to their significant advantages in exposing multiple active sites. [34][35][36] This article focuses predominantly on summary OER catalysts grounded in layered metal oxides (LMOs).…”