Confinement dependence of electro-catalysts for hydrogen evolution from water splitting
Artikel i vetenskaplig tidskrift, 2014

Density functional theory is utilized to articulate a particular generic deconstruction of the electrode/electro-catalyst assembly for the cathode process during water splitting. A computational model was designed to determine how alloying elements control the fraction of H2 released during zirconium oxidation by water relative to the amount of hydrogen picked up by the corroding alloy. This model is utilized to determine the efficiencies of transition metals decorated with hydroxide interfaces in facilitating the electro-catalytic hydrogen evolution reaction. A computational strategy is developed to select an electro-catalyst for hydrogen evolution (HE), where the choice of a transition metal catalyst is guided by the confining environment. The latter may be recast into a nominal pressure experienced by the evolving H2 molecule. We arrived at a novel perspective on the uniqueness of oxide supported atomic Pt as a HE catalyst under ambient conditions.

hydrogen evolution

corrosion

DFT

electro-catalysis

confinement

Författare

Mikaela Lindgren

Chalmers, Kemi- och bioteknik, Oorganisk miljökemi

Itai Panas

Chalmers, Kemi- och bioteknik, Oorganisk miljökemi

Beilstein Journal of Nanotechnology

2190-4286 (ISSN)

Vol. 5 1 195-201

Drivkrafter

Hållbar utveckling

Styrkeområden

Nanovetenskap och nanoteknik

Energi

Materialvetenskap

Ämneskategorier

Kemiska processer

Materialkemi

Annan materialteknik

Teoretisk kemi

Nanoteknik

Korrosionsteknik

DOI

10.3762/bjnano.5.21

Mer information

Skapat

2017-10-07