Mn-doped RuO₂ nanocrystals with abundant oxygen vacancies for enhanced oxygen evolution in acidic media

Abstract

Synthesizing Mn–RuO2-120(NaNO3) with abundant oxygen vacancies using the molten salt method enhances the oxygen evolution reaction (OER) catalytic performance, demonstrating excellent activity and stability.

Adjustable composition of self-supported amorphous Ni–Fe–P nanosheet decorated NiP microspheres for efficient and stable overall alkaline freshwater/seawater splitting

“…Hydrogen, characterized by its superior gravimetric energy density and lack of carbon emissions, emerges as a crucial renewable energy source, positioning itself as a viable replacement for conventional fossil fuels and highlights its significance in the shift towards green energy solutions. 1–4 The process of electrochemical water splitting, which encompasses the HER at the cathode and the OER at the anode, presents a sustainable method for hydrogen gas production devoid of greenhouse gas emissions. 5–7 To date, platinum-based catalysts for HER and iridium dioxide/ruthenium dioxide materials for OER have been identified as the most efficient.…”

Structural Modulation through Se Vacancies on Zn-Doped NiSe2 Nanoparticles for Expediting Electrocatalytic Hydrogen Evolution

“…31,32 Nevertheless, the electrocatalytic performance of these NiSe 2 NPs is still less than that of the noble metals, which seeks further attention. Diversified approaches such as morphological variations, 33 metal doping, 34,35 incorporation of conductive substrates, 36 defect engineering, 37,38 vacancy creation, 39 etc., are being prospected to boost the electrocatalytic behavior of materials. Among these, metal doping is one of the prominent approaches established to enhance the catalytic activity of NiSe 2 NPs.…”