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
Nature Publishing Group, 2016. Vol. 7, 11981
IdentifiersURN: urn:nbn:se:kth:diva-189946DOI: 10.1038/ncomms11981ISI: 000378815100001PubMedID: 27306541ScopusID: 2-s2.0-84975321850OAI: oai:DiVA.org:kth-189946DiVA: diva2:950120
QC 201607272016-07-272016-07-252016-07-27Bibliographically approved