Open AccessOne-Pot Super Critical Fluid Synthesis of Spinel MnFe2O4 Nanoparticles and its Application as Anode Material for Mg-ion Battery
Author(s) -
Vinay Gangaraju,
Tathagata Sardar,
Kunal Roy,
Mahesh Shastri,
Manjunath Shetty,
Murthy Muniyappa,
Hiroaki Kobayashi,
Takaaki Tomai,
C. S. Ananda Kumar,
Prasanna D. Shivaramu,
Dinesh Rangappa
Publication year - 2022
Publication title -
asian journal of chemistry/asian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.145
H-Index - 34
eISSN - 0975-427X
pISSN - 0970-7077
DOI - 10.14233/ajchem.2022.23642
Subject(s) - spinel , anode , battery (electricity) , electrochemistry , nanoparticle , chemical engineering , ion , particle size , phase (matter) , materials science , chemistry , nanotechnology , metallurgy , electrode , organic chemistry , thermodynamics , power (physics) , physics , engineering
In present study, the synthesis of spinel MnFe2O4 nanoparticles using a facile one-pot super criticalfluid method and their application for Mg-ion battery application as anode materials is reported. Thesynthesized MnFe2O4 nanoparticles were well characterized for their structure and morphology usingXRD, SEM, TEM and EDS analysis. The average particle size of materials was less than 50 nm withspinel structure. The main feature of magnesium ion battery is its high specific capacity and largevolumetric energy density, which makes it a promising alternative to Li-ion batteries. The spinelMnFe2O4 material has been used as an anode material for Mg-ion batteries. At different C-rates (0.05Cto 2C), electrochemical charge-discharge behaviour has been observed. In first cycle of the phase-purespinel structured anode, an initial specific capacity of 195.82 mAh/g, 139.70 mAh/g, 25.04 mAh/gand 14.16 mAh/g were obtained at C rate of 0.05C, 0.1C, 1C and 2C, respectively. A possible phaseconversion reaction of the anode resulted in a decrease in specific capacity with increasing C-rate.