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...
The mechanism of hydrogen evolution reaction (HER) Hydrogen evolution reaction is a two-step process. In acidic solutions, HER starts by the Volmer step that the hydronium ions are discharged to become hydrogen intermediates (H*) absorbed on the catalysts; then hydrogen evolves by either the chem...
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 ...
Gasteiger, Eds., John Wiley & Sons Ltd., 2003, p. 416-440. 关键词: hydrogen evolution reaction reaction mechanisms Volmer–Heyrovsky mechanism Volmer–Tafel mechanism overpotential Tafel slope volcano plot electrode activity apparent intrinsic DOI: 10.1007/978-1-4419-6996-5_403 被引量: 10 ...
Insights into the Electrocatalytic Hydrogen Evolution Reaction Mechanism on Two-Dimensional Transition-Metal Carbonitrides (MXene) Developing highly active, non-noble-metal H2 evolution catalysts is appealing yet still remains a great challenge in the promising field of electrocatalyti... B Huang,N ...
(5) Moredetaileddiscussionofthemechanismofhydrogen evolutionispresentedbyManfredBreiterinReaction mechanismsoftheH 2 oxidation/evolutionreaction,Vol- ume2.Forwaterelectrolysisinalkalinesolutionsthe equilibriumredoxpotentialsofreactions(2)–(5)are E c =E 0 H 2 + RT F ln a H 2 O a OH −a 1/2...
这是在酸性溶液中，溶液要满足电中性的话，失去正离子H+的同时也要失去同样电荷数的阴离子，这个阴离子...
(electrochemical adsorption) will govern the hydrogen evolution reaction, or in the case, the Tafel slope ranges within 39–118 mV dec−1, then, the Volmer–Heyrovsky will be the mechanism of the hydrogen evolution reactions, which will proceed via a controlling Heyrovsky reaction as well as...
Recently, monolayer molybdenum disulphide (MoS2) has emerged as a promising and non–precious electrocatalyst for hydrogen evolution reaction. However, its performance is largely limited by the low density and poor reactivity of active sites within its basal plane. Here, we report that domain boundari...
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