Heteroatom doping is an effective strategy to regulate electrocatalysts for the oxygen evolution reaction (OER). Nonmetal heteroatoms can effectively engineer geometric and electronic structures activating surface sites of catalysts due their unique radius electronegativity nonmetal atoms. Hence, structure activity atoms (X, X = B, C, N, O, P)-doped Ni3S2 (X-Ni3S2) were studied screen high-perf...

High-entropy oxides are an upcoming research topic due to their broad range of possible crystal structures and applications. In this work, we want present the change in catalytic properties when using different elements create a high-entropy spinel. Therefore, used nebulized-spray pyrolysis synthesize spinel (Mn 0.2 Fe Ni Mg Zn ) 3 O 4 later on exchanged or with multiple oxidation states, our e...

Water electrolysis is a compelling method for the production of environmentally friendly hydrogen, minimizing carbon emissions. The water heavily relies on an effective and steady oxygen evolution reaction (OER) taking place at anode. Herein, we introduce highly promising catalyst OER called CoSe2@NiFeOOH arrays, which are supported nickel foam. This catalyst, referred to as CoSe2@NiFeOOH/NF, f...

This short review summarizes the reconstruction phenomena in different types of electrocatalysts, and then concludes potential substrate effects, offering insights into both fundamental chemistry design reconstructed electrocatalysts with guideline effect.

Molybdenum disulfide (MoS2) has been widely used as a catalyst for the bifunctional activities of hydrogen and oxygen evolution reactions (HER OER). Here, we investigated size dependent HER OER performance MoS2. The smallest (90 nm) MoS2 exhibits lowest overpotential −0.28 V at −10 mAcm−2 1.52 300 with Tafel slopes 151 176 mVdec−1 OER, respectively, compared to bigger sizes (2 μm 6 μm) better i...

The electrodeposition approach is significant in electrode fabrication for practical application. Herein, the electrodeposited amorphous NiFe hydroxide species oxygen evolution reaction (OER) water splitting demonstrated by revealing synergistic effect influenced support of Fe and Ni foil contents electrolyte. All samples have an structure similar profiles binding energy chemical states as char...

Hydrogen is the most preferred choice as an energy source to replace nonrenewable resources such fossil fuels due its beneficial features of abundance, ecofriendly, and outstanding gravimetric density. Splitting water through a proton exchange membrane (PEM) electrolyzer well-known method hydrogen production. But major impediment sluggish kinetics oxygen evolution reaction (OER). Currently, sci...

Efficient oxygen-evolution reaction catalysts are required for the cost-effective generation of solar fuels. Metal selenides have been reported as promising oxygen-evolution catalysts; however, their active forms are yet to be elucidated. Here we show that a representative selenide catalyst, nickel selenide, is entirely converted into nickel hydroxide under oxygen-evolution conditions. This res...