Synthesis of nanocrystalline Ni1−xCoxMnxFe2−xO4: a material for liquefied petroleum gas sensing

Synthesis, characterization and performance of zinc ferrite nanorods for room temperature sensing applications

“…The prominence is currently being placed on the development of sensor materials for the detection of LPG that offer high sensitivity, short response and recovery times, superior reproducibility and long-term stability [1,2]. However, most of the sensors developed so far are kinetically slow with a limited sensitivity for the detection below the permissible level of LPG and operate above room temperature; although the detection of LPG at room temperature will be very helpful for the chemical industries and research laboratories [3][4][5]. The sensing response would be more effective for the material with high surface area and porosity [6,7].…”

Nanosized copper ferrite materials: Mechanochemical synthesis and characterization

“…Transition metal spinel oxides are technologically important as magnetic materials, semiconductors, pigments and as effective catalysts for number of industrial processes, such as aluminum production [1][2][3][4], oxidative dehydrogenation of butane to butadiene, two step thermochemical methane reforming [5], hydrodesulphurization of petroleum, photo-catalytic reactions [6], CO oxidation [7], treatment of automotive exhausted gases [8], hydrogen production by steam reforming of DME [9][10][11], etc. Copper ferrite is an inverse ferromagnetic spinel, which could be described as a cubic closed packed arrangement of oxygen ions with Cu 2 þ and Fe 3 þ cations in tetrahedral (A) and octahedral (B) coordination.…”

Electric Conductivity and Gas-Sensing Properties of Nickel Ferrite Thin Films Formed by Ion-Beam Sputtering Deposition

“…The procedure was aimed at stabilization of the properties of the ferrite layer, since when used as a gas-sensor material the ferrite gets heated up to the temperatures of 400-700 K, which are characteristic of the maximum values of gas-sensing oxide materials [9]. Under ambient conditions the electroresistance of the postannealed sampled increased up to 39 kOm as compared to the value of 30 kOm observed before annealing of the ferrite films deposited onto the support.…”