Nanostructured mixed transition metal oxides for high performance asymmetric supercapacitors : Facile synthetic strategy
Tajik, Sanaz (Institut Català de Nanociència i Nanotecnologia)
Dubal, Deepak P. (Institut Català de Nanociència i Nanotecnologia)
Gómez-Romero, Pedro 1959- (Institut Català de Nanociència i Nanotecnologia)
Yadegari, Amir (Marquette University School of Dentistry. Department of Developmental Sciences)
Rashidi, Alimorad (Research Institute of Petroleum Industry)
Nasernejad, Bahram (Amirkabir University of Technology)
Siddique, Inamuddin (King Abdulaziz University. Chemistry Department)
Asiri, Abdullah M. (King Abdulaziz University. Chemistry Department)

Date:	2017
Abstract:	Exceptionally simple and cost-effective solid-state method is reported for the synthesis of different mixed transition metal oxides (MTMOs) including FeCoO, MnCoO and ZnCoO with unique nanostructures. The morphological analysis show that MTMOs possess distinct nanostructures such as tetragonal, spherical nanoparticles and hexagonal nanosheets. Furthermore, these MTMOs showed excellent supercapacitive properties with specific capacitances of 660-1263 F/g at current density of 2 A/g. Asymmetric capacitor was fabricated with FeCoO as positive and activated carbon as negative electrode which exhibits a specific capacitance of 88 F/g with energy density of 24 Wh/kg (1. 1 mWh/cm) and cycle life (93%) over 5000 cycles.
Grants:	Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR-1505
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Language:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Subject:	Ternary metal oxides ; Asymmetric supercapacitor ; High energy density ; Specific capacitance
Published in:	International journal of hydrogen energy, Vol. 42, Issue 17 (April 2017) , p. 12384-12395, ISSN 1879-3487

DOI: 10.1016/j.ijhydene.2017.03.117

Postprint 24 p, 1.6 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Catalan Institute of Nanoscience and Nanotechnology (ICN2)
Articles > Research articles
Articles > Published articles