Facile efficient earth abundant NiO/C composite electrocatalyst for the oxygen evolution reaction.

ABSTRACT: Due to the increasing energy consumption, designing efficient electrocatalysts for electrochemical water splitting is highly demanded. In this study, we provide a facile approach for the design and fabrication of efficient and stable electrocatalysts through wet chemical methods. The carbon material, obtained by the dehydration of sucrose sugar, provides high surface area for the deposition of NiO nanostructures and the resulting NiO/C catalysts show higher activity towards the OER in alkaline media. During the OER, a composite of NiO with 200 mg C can produce current densities of 10 and 20 mA cm^-2 at a bias of 1.45 V and 1.47 V vs. RHE, respectively. Electrochemical impedance spectroscopy experiments showed the lowest charge transfer resistance and the highest double lay

SUBMITTER: Mugheri AQ 

PROVIDER: S-EPMC9060904 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature