Details

Autor(en) / Beteiligte

• Fan, Ke
• Chen, Hong
• Ji, Yongfei
• Huang, Hui
• Claesson, Per Martin
• Daniel, Quentin
• Philippe, Bertrand
• Rensmo, Håkan
• Li, Fusheng
• Luo, Yi
• Sun, Licheng

Titel

Nickel-vanadium monolayer double hydroxide for efficient electrochemical water oxidation

Ist Teil von

• Nature communications, 2016-06, Vol.7 (1), p.11981-11981, Article 11981

Ort / Verlag

England: Nature Publishing Group

Erscheinungsjahr

2016

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• 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.