Boosting the interfacial hydrogen migration for efficient alkaline hydrogen evolution on Pt-based nanowires

Abstract

The alkaline hydrogen evolution reaction (HER) on Pt-based catalysts is largely retarded by insufficient supply of dissociated hydrogen (*H) on Pt sites. Hydrogen spillover offers a promising solution to deliver...

Intensifying Hydrogen Spillover for Boosting Electrocatalytic Hydrogen Evolution Reaction

“…Generally, a typical electrocatalytic HER through hydrogen spillover occurs from the surface with ~GHnegative to the surface with the ~GHpositive , which is a kinetically unfavorable process. [54][55][56][57][58][59][60] Therefore, a large energy barrier should be overcome to facilitate the efficient hydrogen spillover. In order to reduce the energy barrier, some advanced strategies have been proposed.…”

Facile synthesis of defect-rich RuCu nanoflowers for efficient hydrogen evolution reaction in alkaline media

“…[19][20] To conquer these obstacles, tremendous efforts have been devoted including structure design, shape control and composition optimization. [21][22][23][24][25] Among them, alloying Ru with a transition metal (e. g. Ni, Co, Cu) offers a great opportunity to reduce energy barrier for water dissociation process, which exhibits remarkable enhancement in catalytic activity toward HER. [26][27][28] For example, incorporating Cu heteroatom into Ru can optimize the adsorption energy of H* on the catalyst through the modulation of the electronic structure caused by ligand effect, which can benefit the HER process.…”

“…19,20 To overcome these obstacles, tremendous efforts have been devoted, including structure design, shape control and composition optimization. [21][22][23][24][25] Among them, alloying Ru with a transition metal (e.g. Ni, Co, and Cu) offers a great opportunity to reduce the energy barrier for the water dissociation process, which exhibits remarkable enhancement in catalytic activity toward HER.…”

Preparation of porous carbon nanowires for hydrogen evolution reaction

“…The catalysts played a vital role in electrocatalysis and photocatalysis water splitting. The transition metal catalysts (such as Ni, Co, Fe, Bi, and Mn) have been widely investigated and got more attention due to their low cost and high activity [5][6]. Electrocatalysis water splitting with simple operation and easy-to-obtain catalysts is the most appropriate method to produce clean hydrogen [6].…”

“…The transition metal catalysts (such as Ni, Co, Fe, Bi, and Mn) have been widely investigated and got more attention due to their low cost and high activity [5][6]. Electrocatalysis water splitting with simple operation and easy-to-obtain catalysts is the most appropriate method to produce clean hydrogen [6]. The anode produces oxygen, the cathode produces hydrogen under external voltage, and the theoretical external voltage is 1.23V.…”