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 language | English |
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Pages (from-to) | 285-292 |
Number of pages | 8 |
Journal | Materials Chemistry and Physics |
Volume | 130 |
Issue number | 1-2 |
DOIs | |
State | Published - 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.
Funders | Funder number |
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Department of Science and Technology, Ministry of Science and Technology, India |
Keywords
- Electrical conductivity pseudocapacitance
- Electro-catalyst
- Ferrimagnetic
- Molten salt synthesis
- Spinel ferrite