Electrodeposited Nanostructured CoFe2O4 for OverallWater Splitting and Supercapacitor Applications

Chunyang Zhang, Sanket Bhoyate, Chen Zhao, Pawan K. Kahol, Nikolaos Kostoglou, Christian Mitterer, Steven J. Hinder, Mark Baker, Georgios Constantinides, Kyriaki Polychronopoulou, Claus Rebholz, Ram K. Gupta

Publikation: Beitrag in FachzeitschriftArtikelForschungBegutachtung

37 Zitate (Scopus)


To contribute to solving global energy problems, a multifunctional CoFe 2 O 4 spinel was synthesized and used as a catalyst for overall water splitting and as an electrode material for supercapacitors. The ultra-fast one-step electrodeposition of CoFe 2 O 4 over conducting substrates provides an economic pathway to high-performance energy devices. Electrodeposited CoFe 2 O 4 on Ni-foam showed a low overpotential of 270 mV and a Tafel slope of 31 mV/dec. The results indicated a higher conductivity for electrodeposited compared with dip-coated CoFe 2 O 4 with enhanced device performance. Moreover, bending and chronoamperometry studies suggest excellent durability of the catalytic electrode for long-term use. The energy storage behavior of CoFe 2 O 4 showed high specific capacitance of 768 F/g at a current density of 0.5 A/g and maintained about 80% retention after 10,000 cycles. These results demonstrate the competitiveness and multifunctional applicability of the CoFe 2 O 4 spinel to be used for energy generation and storage devices.

Seiten (von - bis)1-11
FachzeitschriftCatalysts : open access journal
PublikationsstatusVeröffentlicht - 13 Feb. 2019

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