Please use this identifier to cite or link to this item:
https://hdl.handle.net/20.500.14279/13653
Title: | Electrodeposited Nanostructured CoFe2O4 for Overall Water Splitting and Supercapacitor Applications | Authors: | Zhang, Chunyang Bhoyate, Sanket Zhao, Chen Kahol, Pawan K. Kostoglou, Nikolaos Mitterer, Christian Hinder, Steven J. Baker, Mark A. Constantinides, Georgios Polychronopoulou, Kyriaki Rebholz, Claus Gupta, Ram K. |
Major Field of Science: | Natural Sciences | Field Category: | Chemical Sciences | Keywords: | CoFeO 24;HER;OER;Overall water splitting;Supercapacitor | Issue Date: | Feb-2019 | Source: | Catalysts, 2019, vol. 9, no. 2 | Volume: | 9 | Issue: | 2 | Journal: | Catalysts | Abstract: | 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. | ISSN: | 20734344 | DOI: | 10.3390/catal9020176 | Rights: | © by the authors. Licensee MDPI, Basel, Switzerland | Type: | Article | Affiliation : | Pittsburg State University Montanuniversität Leoben University of Surrey Cyprus University of Technology Khalifa University University of Cyprus |
Publication Type: | Peer Reviewed |
Appears in Collections: | Άρθρα/Articles |
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catalysts-09-00176.pdf | Fulltext | 4.29 MB | Adobe PDF | View/Open |
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