 NiCo-loaded carbon nanofibers obtained by electrospinning: Bifunctional behavior as air electrodesC. Alegre, E. Modica, A. Di Blasi, O. Di Blasi, C. Busacca, M. Ferraro, A.S. Aricò, V. Antonucci and V. Baglio Renewable Energy, 2018, vol. 125, issue C, 250-259 Abstract: In this work, carbon nanofibers (CNF) synthesized by electrospinning are loaded with a combination of nickel and cobalt, both in the metallic and oxide forms (NiCo-loaded CNF), and studied as bifunctional air electrodes for metal-air batteries. The performance of the NiCo-loaded CNF sample is compared with a similarly prepared CoOCo/CNF catalyst both for oxygen reduction and evolution reactions. The combination of nickel and cobalt, both in metallic and oxide form, leads to a bifunctional catalyst with a half-wave potential for the ORR of 874 mV vs. RHE and a reversibility (ΔEOER-ORR) of 764 mV. The stability of the catalyst is assessed by means of a 24 h chronopotentiometric test at −80 mA cm−2 and charge-discharge cycles (30 min each) at ±20 mA cm−2. NiCo-loaded CNF shows a remarkable stability, maintaining a constant potential during both tests. Keywords: Bifunctional catalysts; Metal-air batteries; Air electrodes; Carbon nanofibers; Transition metal oxides (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:125:y:2018:i:c:p:250-259 DOI: 10.1016/j.renene.2018.02.089 Access Statistics for this article Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides More articles in Renewable Energy from Elsevier |
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