Nickel-vanadium monolayer double hydroxide for efficient electrochemical water oxidation
2016 (English)In: Nature Communications, ISSN 2041-1723, E-ISSN 2041-1723, Vol. 7, 11981Article in journal (Refereed) PublishedText
Highly active and low-cost electrocatalysts for water oxidation are required due to the demands on sustainable solar fuels; however, developing highly efficient catalysts to meet industrial requirements remains a challenge. Herein, we report a monolayer of nickel-vanadium-layered double hydroxide that shows a current density of 27 mA cm(-2) (57 mA cm(-2) after ohmic-drop correction) at an overpotential of 350 mV for water oxidation. Such performance is comparable to those of the best-performing nickel-iron-layered double hydroxides for water oxidation in alkaline media. Mechanistic studies indicate that the nickel-vanadium-layered double hydroxides can provide high intrinsic catalytic activity, mainly due to enhanced conductivity, facile electron transfer and abundant active sites. This work may expand the scope of cost-effective electrocatalysts for water splitting.
Place, publisher, year, edition, pages
2016. Vol. 7, 11981
Other Physics Topics
IdentifiersURN: urn:nbn:se:uu:diva-299913DOI: 10.1038/ncomms11981ISI: 000378815100001PubMedID: 27306541OAI: oai:DiVA.org:uu-299913DiVA: diva2:950349
FunderSwedish Energy AgencyKnut and Alice Wallenberg FoundationSwedish Research Council