Cobalt phosphide nanorods as an efficient electrocatalyst for the hydrogen evolution reaction
By Zhipeng Huang, Zhongzhong Chen, Zhibo Chen, Cuncai Lv, M. Humphrey, Chi Zhang. 2014
459 citations recorded by the source corpus.
Abstract Cobalt phosphide (Co 2 P) nanorods are found to exhibit efficient catalytic activity for the hydrogen evolution reaction (HER), with the overpotential required for the current density of 20 mA/cm 2 as small as 167 mV in acidic solution and 171 mV in basic solution. In addition, the Co 2 P nanorods can work stably in both acidic and basic solution during hydrogen production. This performance can be favorably compared to typical high efficient non-precious catalysts, and suggests the promising application potential of Co 2 P nanorods in the field of hydrogen production. The HER process follows a Volmer–Heyrovsky mechanism, and the rates of the discharge step and desorption step appear to be comparable during the HER process. The similarity of charged natures of Co and P in the Co 2 P nanorods to those of the hydride-acceptor and proton-acceptor in highly efficient Ni 2 P catalysts, [NiFe] hydrogenase, and its analogues implies that the HER catalytic activity of the Co 2 P nanorods might be correlated with the charged natures of Co and P.
Subfields: Electrical and Electronic Engineering, Renewable Energy, Sustainability and the Environment
View Paper: https://www.semanticscholar.org/paper/bff4b42585c7016914d8c3305c1da9d560e57519
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.