Facile and large scale combustion synthesis of α-CoMoO4: Mimics the redox behavior of a battery in aqueous hybrid device

S. Baskar; D. Meyrick; K.S. Ramakrishnan; M. Minakshi

doi:10.1016/j.cej.2014.05.068

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Facile and large scale combustion synthesis of α-CoMoO4: Mimics the redox behavior of a battery in aqueous hybrid device

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Facile and large scale combustion synthesis of α-CoMoO4: Mimics the redox behavior of a battery in aqueous hybrid device

S. Baskar, D. Meyrick, K.S. Ramakrishnan and M. Minakshi

Chemical Engineering Journal, Vol.253, pp.502-507

2014

DOI: https://doi.org/10.1016/j.cej.2014.05.068

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Abstract

We have made an investigation on cobalt molybdate (α-CoMoO4) as cathode material for aqueous hybrid system, in which the α-CoMoO4 positive material was prepared by a facile and scalable unique solution combustion synthesis (SCS) technique in air at ambient atmosphere. The α-CoMoO4 is stable at ambient temperature. The structural, morphological and pseudocapacitive properties of the α-CoMoO4 were studied by XRD, Raman, SEM and cyclic voltammetry. The XRD and Raman analysis evidenced the formation of pure crystalline α-CoMoO4 phase. The material α-CoMoO4 is reproducible using the simple combustion technique and the process scalability has been determined. The asymmetric hybrid device (AC vs. α-CoMoO4) (activated carbon denoted AC) exhibited good electrochemical performance in terms of specific capacitance (105 Fg-1) and energy density (14.5Whkg-1). The asymmetric device shows very good cycling stability, with 98% of initial capacitance retained after 4000 cycles. The α-CoMoO4 closely mimics the redox mechanism that contributes to the obtained specific capacitance.

Details

Title: Facile and large scale combustion synthesis of α-CoMoO4: Mimics the redox behavior of a battery in aqueous hybrid device
Authors/Creators: S. Baskar (Author/Creator) - Murdoch University
D. Meyrick (Author/Creator) - Murdoch University
K.S. Ramakrishnan (Author/Creator) - Bharathiar University
M. Minakshi (Author/Creator) - Murdoch University
Publication Details: Chemical Engineering Journal, Vol.253, pp.502-507
Publisher: Elsevier
Identifiers: 991005540817307891
Murdoch Affiliation: School of Engineering and Information Technology
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 2 Chemistry; 2.62 Electrochemistry; 2.62.52 Electrode Materials
Web Of Science research areas: Engineering, Chemical; Engineering, Environmental
ESI research areas: Engineering