TY - JOUR
T1 - Electrodeposited Nanostructured CoFe2O4 for OverallWater Splitting and Supercapacitor Applications
AU - Zhang, Chunyang
AU - Bhoyate, Sanket
AU - Zhao, Chen
AU - Kahol, Pawan K.
AU - Kostoglou, Nikolaos
AU - Mitterer, Christian
AU - Hinder, Steven J.
AU - Baker, Mark
AU - Constantinides, Georgios
AU - Polychronopoulou, Kyriaki
AU - Rebholz, Claus
AU - Gupta, Ram K.
PY - 2019/2/13
Y1 - 2019/2/13
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85062852212&partnerID=8YFLogxK
U2 - 10.3390/catal9020176
DO - 10.3390/catal9020176
M3 - Article
SN - 2073-4344
VL - 9.2019
SP - 1
EP - 11
JO - Catalysts : open access journal
JF - Catalysts : open access journal
IS - 2
M1 - 176
ER -
