3 years ago

Nanostructured NiCo@NiCoOx core-shell layer as efficient and robust electrocatalyst for oxygen evolution reaction

Nanostructured NiCo@NiCoOx core-shell layer as efficient and robust electrocatalyst for oxygen evolution reaction
A nanostructured NiCo@NiCoOx core-shell layer for oxygen evolution reaction in alkaline solution was prepared. Firstly, a NiCo-SiO2 composite film was electro-codeposited from a solution containing (NH4)2SiF6, NiSO4, and CoSO4. Then the as-prepared composite layer was underwent consecutive CV scans in concentrated alkaline solution. During this process, the SiO2 template was etched and the NiCo component was activated leading to the generation of a NiCoOx shell. Results shown that this nanostructured NiCo@NiCoOx core-shell layer can provide a current density of 100mAcm−2 in 1.0M KOH at a low overpotential of 337mV and exhibits good stability towards water oxidation. The excellent OER performance is enabled with the unique metal-oxide/hydroxide core-shell structure, which allows high electrical conductivity in the core and high catalytic activity on the shell.

Publisher URL: www.sciencedirect.com/science

DOI: S0013468617320170

You might also like
Never Miss Important Research

Researcher is an app designed by academics, for academics. Create a personalised feed in two minutes.
Choose from over 15,000 academics journals covering ten research areas then let Researcher deliver you papers tailored to your interests each day.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.