Structural, magnetic, electrical and electrochemical properties of NiFe2O4 synthesized by the molten salt technique

Baskaran Senthilkumar, Ramakrishnan Kalai Selvan, Palanisamy Vinothbabu, Ilana Perelshtein, Aharon Gedanken

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Abstract

Submicron-sized NiFe2O4 particles were synthesized by the molten salt method at 900 °C using binary melts of a NaCl and KCl mixture that acts as a flux. The X-ray diffraction pattern confirmed the single phase, high crystalline and cubic structure of NiFe2O4 with a Fd3m space group. The FT-IR spectra reveal the stretching vibration of octahedral complexes of Fe3+-O2- through the observed band around 552.3 cm-1. The SEM and TEM image had indicated the formation of submicron-sized NiFe2O4 particles. The ferrimagnetic behavior and high saturation magnetization of 44 emu g-1 was elucidated by VSM. The maximum electrical conductivity of 1.42 × 10 -4 S cm-1 was observed at 873 K. The NiFe 2O4 showed a pseudocapacitive property in 1 M of a LiClO4 electrolyte and exhibited a specific capacitance of 18.5 F g-1 at 10 mV s-1. The hydrogen evolution reaction was also studied for NiFe2O4 in 1 M of a H2SO 4 solution.

Original languageEnglish
Pages (from-to)285-292
Number of pages8
JournalMaterials Chemistry and Physics
Volume130
Issue number1-2
DOIs
StatePublished - 17 Oct 2011

Bibliographical note

Funding Information:
The authors acknowledge the DST, Government of India for the VSM facility under the FIST Program sanctioned to the Department of Physics, National Institute of Technology, Tiruchi.

Funding

The authors acknowledge the DST, Government of India for the VSM facility under the FIST Program sanctioned to the Department of Physics, National Institute of Technology, Tiruchi.

FundersFunder number
Department of Science and Technology, Ministry of Science and Technology, India

    Keywords

    • Electrical conductivity pseudocapacitance
    • Electro-catalyst
    • Ferrimagnetic
    • Molten salt synthesis
    • Spinel ferrite

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