Electrochemistry Communications
Electrochemistry Communications
5 years ago

Facile and controllable synthesis at an ionic layer level of high-performance NiFe-based nanofilm electrocatalysts for the oxygen evolution reaction in alkaline electrolyte

Facile and controllable synthesis at an ionic layer level of high-performance NiFe-based nanofilm electrocatalysts for the oxygen evolution reaction in alkaline electrolyte
Controllable loading of NiFe-based semiconductor electrocatalysts is critical for high performance toward the oxygen evolution reaction (OER) because of their low conductivity. In this work, for the first time, Fe(OH)3/NiS composite nanolayers with high-performance for OER are synthesized in a controllable way at an ionic layer level. Specific amounts of NiS and Fe(OH)3 are loaded onto coral-like CuO/Cu microarrays (c-CuO/Cu) in an easily controlled way by successive ionic layer adsorption and reaction (SILAR); the resulting OER activity depends heavily on the number of SILAR cycles. The optimized Fe(OH)3/NiS/c-CuO/Cu electrode exhibits a very low OER overpotential of 257mV (vs. RHE) at 10mA/cm2 (with no IR compensation) in 1M KOH and is stable toward OER for at least 10h. We also prepared high-performance Fe(OH)3/Ni(OH)2/c-CuO/Cu OER electrocatalysts in a similar way. It is expected that this approach will be used to fabricate further semiconductor electrocatalysts for water splitting.

Publisher URL: www.sciencedirect.com/science

DOI: S1388248117303090

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • 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.