Co_1−xBa_xFe₂O₄ (x = 0, 0.25, 0.5, 0.75 and 1) nanoferrites as gas sensor towards NO₂ and NH₃ gases

Abstract

XRD pattern and sensitivity (%) as a function of flow rate (ppm) of Co1−xBaxFe2O4 (x = 0, 0.25, 0.5, 0.75 and 1.0) nanoferrites towards NO2 and NH3 gases.

Crystal structure and peculiarities of microwave parameters of Co1−xNixFe2O4 nano spinel ferrites

“…[16][17][18] The distribution of cations between tetrahedral (A) and octahedral (B) positions has a signicant impact on the crystal structure, microwave, and magnetic properties of spinel ferrites. 19,20 This aspect makes it possible to use spinel ferrites in ecology and biomedicine, electronics, and industry for various purposes, including targeted drug delivery, 21 MRI, 22 battery cathode materials, 23 longitudinal recording media, 24 and anodes, 25 gas sensors, 26 antennas, 27 microelectronics. 28 Ferrites based on nickel ions have outstanding magnetic and electrical characteristics (low eddy current loss and coercivity, high magnetic permeability and mechanical hardness, extremely high electrical resistivity, and high operating frequency).…”

“…16–18 The distribution of cations between tetrahedral (A) and octahedral (B) positions has a significant impact on the crystal structure, microwave, and magnetic properties of spinel ferrites. 19,20 This aspect makes it possible to use spinel ferrites in ecology and biomedicine, electronics, and industry for various purposes, including targeted drug delivery, 21 MRI, 22 battery cathode materials, 23 longitudinal recording media, 24 and anodes, 25 gas sensors, 26 antennas, 27 microelectronics. 28…”