The edges of hexagonal symmetry molybdenum disulfide (2H-MoS2) are usually considered as active sites for hydrogen evolution reaction (HER). However, the underlying HER reaction mechanism, particularly its reaction kinetics on 2H-MoS2, have not been widely studied. In this work, a systemic density...
2.2.1.1 Hydrogen evolution reaction The hydrogen evolution reaction is one of the most widely studied electrochemical reactions. Volmer, Heyrovsky, and Tafel steps (Reaction 6, Reaction 7, and Reaction 8, respectively) are the most commonly accepted steps in the hydrogen evolution mechanism (Bockris...
Hydrogen Evolution ReactionPlatinum ElectrodeVolmer Heyrovsky MechanismAn inverted rotating disc electrode (IRDE) setup was fabricated to study the hydrogen evolution reaction (HER) on a Pt electrode. Potentiodynamic polarization studies were conducted in solutions from 5 to 100 mM HClO4 on Pt at ...
Nanostructured nonprecious metal catalysts for oxygen reduction reaction. Acc. Chem. Res. 46, 1878–1889 (2013). Article CAS PubMed Google Scholar Durst, J. et al. New insights into the electrochemical hydrogen oxidation and evolution reaction mechanism. Energy Environ. Sci. 7, 2255–2260 (...
Designing efficient electrocatalysts for hydrogen evolution reaction is significant for renewable and sustainable energy conversion. Here, we report single-atom platinum decorated nanoporous Co0.85Se (Pt/np-Co0.85Se) as efficient electrocatalysts for hyd
A hydrogen evolution reaction is the production of hydrogen through the process of water electrolysis. The evolution of hydrogen is possibly limited and based on the desorbing of molecules coming from the cathode surface. Hydrogen evolution usually occurs on metals such as: ...
[X-ray absorption near-edge structure (XANES) and extended X-ray absorption fine structure (EXAFS)], infrared (IR) spectroscopy, and nuclear magnetic resonance (NMR). In addition, DFT computations have brought unprecedented to discovering catalytic reaction mechanism and predicting the catalytically ...
the overpotential of OER can be decreased obviously, leading to a high efficiency of energy utilization,” Shao said. “Some works about the identification of active sites for LDHs are introduced. Revelation of reaction mechanism and active sites provide the theoretical guidance to design efficient ...
Hydrogen evolution proceeds according to a simple two-step mechanism: the H+ ions in the electrolyte are adsorbed on the surface of the metal (Equation (12)), and the adsorbed protons penetrate the lattice and form an M-Had bond (the Volmer reaction). The adsorbed ions can produce hydrogen...
Innocent buffers reveal the intrinsic pH- and coverage-dependent kinetics of the hydrogen evolution reaction on noble metals. Joule 6, 476–493 (2022). Article CAS Google Scholar Durst, J. et al. New insights into the electrochemical hydrogen oxidation and evolution reaction mechanism. Energy ...