Hydrogen evolution reaction (HER)Oxygen evolution reaction (OER)Many transition metal di-selenides such as MoSe2 and WSe2 show good catalytic activity on their edges with limited active orientations. These metal di-selenides are actively being used as target material for increasing the number of ...
In subject area: Biochemistry, Genetics and Molecular Biology The cathodic reaction is called hydrogen evolution reaction (HER), which includes the reduction of H2O or protons to form molecular H2. From: Reference Module in Earth Systems and Environmental Sciences, 2023 ...
Herein, the mechanism of three important reactions in electrocatalysis and the progress of catalysts are introduced, including hydrogen evolution, oxygen evolution and oxygen reduction reaction.1 引言 随着人类社会的不断发展, 能源的需求量也越来越大[1]. 随之带来的是日益严重的环境污染和能源危机问题, ...
Interfacial electrocatalysis involves elementary chemical and charge transfer reaction steps. For the hydrogen evolution reaction (HER), the applied overpotential can be partitioned into a charge transfer overpotential, which drives proton-coupled electr
Here, we reported an electro-oxidative intermolecular 1,2-amino oxygenation of alkenes with hydrogen evolution, removing the requirement of extra-oxidant. Using commercial oxygen and nitrogen sources as starting materials, this method provides a cheap, scalable, and efficient route to a set of ...
Generally, molecular oxygen should be pre-eliminated in the hydrogen evolution reactions (HER) in order to avoid reverse hydrogen oxidation reaction (HOR). Here, we report a highly efficient HER from formaldehyde/water mixture using MgO supported Ag nanoparticles (AgNPs/MgO) as the catalyst and mo...
Taking advantage of the ring collection properties of the rotating ring–disk electrode with a single-crystal copper disk, we have shown that the oxygen reduction reaction and the hydrogen evolution–oxidation reactions on Cu(111) and Cu(100) surfaces in sulfuric acid are structure-sensitive process...
In zinc corrosion in hydrochloric solutions, two cathodic reactions can happen: reduction of oxygen and hydrogen evolution reaction. These two processes take up electrons, making the entire zinc corrosion rate heightened as well. When a piece of steel is submerged in hydrochloric acid, strong bubble...
The overall water electrolysis process consists of two half-cell reactions: cathodic hydrogen evolution reaction (HER) and anodic oxygen evolution reaction (OER) [5]. To tackle the sluggish kinetics and circumvent complex multi-electron reaction pathways, a bifunctional electrocatalyst that could ...
Conventional water electrolysis is represented by hydrogen evolution and oxygen evolution reactions (HER/OER), while the ECR process is represented by the alcohol oxidation reaction and the HER. (b) Ethanol electrolysis cell activity under real conditions (80 °C, Anion exchange membrane (AEM), 2...