Oriented arrays of Co 3 O 4 nanoneedles for highly efficient electrocatalytic water oxidation.

Authors :: Zhang JJ
Zhao TJ
Wang HH
Lin YX
Zhai GY
Jiang ZD
Hirano SI
Li XH
Chen JS
Source :: Chemical communications (Cambridge, England) [Chem Commun (Camb)] 2019 Apr 07; Vol. 55 (27), pp. 3971-3974. Date of Electronic Publication: 2019 Mar 15.
Publication Year :: 2019
Abstract: We described an effective way to generate a Co <subscript>3</subscript> O <subscript>4</subscript> mesocrystal array with well-developed porosity, simply by uniting a coupled interface with hydrazine treatment. Due to the fast electron transfer and sufficient active sites, the Ti mesh-supported Co <subscript>3</subscript> O <subscript>4</subscript> nanoneedles electrode could provide a current density of 49.9 mA cm <superscript>-2</superscript> at 570 mV OER overpotential and has exceptionally high stability.

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