1. Stability studies and magnetic behaviour of rhodium vanadate
- Author
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M. D. Mukadam, Keka R. Chakraborty, and Aparna Banerjee
- Subjects
Materials science ,Electromotive force ,Mechanical Engineering ,Solid-state reaction route ,Metals and Alloys ,Analytical chemistry ,chemistry.chemical_element ,02 engineering and technology ,Atmospheric temperature range ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,0104 chemical sciences ,Rhodium ,Gibbs free energy ,Paramagnetism ,symbols.namesake ,Magnetization ,chemistry ,Mechanics of Materials ,Materials Chemistry ,symbols ,Vanadate ,0210 nano-technology - Abstract
Rhodium vanadate an important catalytic compound was synthesized by solid state reaction route and characterized by X-ray diffraction. The standard molar Gibbs energy of formation of rhodium vanadate was determined using solid state electrochemical technique employing a calcia stabilized zirconia (CSZ) oxide ion conducting electrolyte. The Gibbs energy of formation was determined from electromotive force measurements carried out in the temperature range from 959 K to 1137 K. Magnetic measurements using a Vibration Sample Magnetometer (VSM) in the temperature range from 4 K to 300 K under the influence of a magnetic field of 1 kOe was carried out. The measurements concluded that the compound RhVO4(s) shows paramagnetic behavior. The magnetization measured at 1.8 K under a changing magnetic field shows a very narrow and symmetric loop that further reiterates the above conclusion. more...
- Published
- 2020
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