Structural and electrical properties of MgO-doped Mn1.4Ni1.2Co0.4−xMgxO4 (0≤x≤0.25) NTC thermistors

Sustainable low temperature preparation of Mn3−xCoxO4 (0 ≤ x < 3) spinel oxide colloidal dispersions used for solar absorber thin films

“…These have always been considered with a great attention thanks to their very interesting optical, electrical and magnetic properties related to the multi-valence cation. During the last decades, these were largely studied for various types of applications including photothermal conversion [1,2], pigments for paints [3,4], thermistors [5,6] catalysis [7] etc … Moreover, transition metals are naturally abundant and transition metal oxides are usually chemically stable with no adverse effect on the environment.…”

Electrical properties of Sr–Bi–Mn–Fe–O thick-film NTC thermistors prepared by screen printing

“…The spinel materials have been widely used in industry as a temperature sensor in bulk material applications [2][3][4]. The bulk NTC resistors exhibit a monotonic decrease in electrical resistance with increase in temperature.…”

Synthesis and characterization of Mn–Co–Ni–O ceramic nanoparticles by reverse microemulsion method

“…This tetragonal spinel phase has disappeared at 600 1C and only the cubic spinel phase has been remained. This phase transformation is associated with the rearrangement and migration of Mn or Co cations between the octahedral interstices and tetrahedral interstices [19][20][21][22]. As the calcination temperature further increases, the intensity of XRD diffraction peaks becomes weak and the peak width of the Mn-Co-Ni-O nanoparticles shows little change.…”