Nanocomposite and monophasic synthesis routes to magnesium titanate

Preparation and morphology of magnesium titanate nanofibres via electrospinning

“…Magnesium titanate is an oxide ceramic material possessing a relatively low dielectric constant that varies only slightly with temperature and frequency [4]. Magnesium titanate has many useful applications such as in dew sensors, pigments and in the electrical and electronic industries as a dielectric material for manufacturing on-chip capacitors, high frequency capacitors and temperature compensating capacitors [5]. Various methods for the preparation of magnesium titanate microcrystalline powders were reported including solid state reactions [6-8], co-precipitation [9-11], thermal decomposition of peroxide precursors [12], mechano-chemical complexation [13] and sol-gel route [5,14].…”

“…Magnesium titanate has many useful applications such as in dew sensors, pigments and in the electrical and electronic industries as a dielectric material for manufacturing on-chip capacitors, high frequency capacitors and temperature compensating capacitors [5]. Various methods for the preparation of magnesium titanate microcrystalline powders were reported including solid state reactions [6][7][8], co-precipitation [9][10][11], thermal decomposition of peroxide precursors [12], mechano-chemical complexation [13] and sol-gel route [5,14]. Obtaining phase pure MgTiO 3 by solid state reactions is difficult because of the formation of other metastable titanate phases which persist to a certain extent in the final phase [5].…”

Phase formation study of magnesium titanate nanomaterial with polyethylene glycol template

“…One formation of magnesium titanate is MgTiO 3 (MT) which has many useful applications as regard to their dielectric properties, e.g. as high frequency capacitors [1], cellular telephones, antennas, global positioning system, sensors, pigments, chip capacitors [2].…”

“…So far, several methods for the preparation of magnesium titanate such as solid state reaction [3], sol gel, mechano-chemical complexation [2], coprecipitation [4] have been studied. However, there are some limitations from these methods, for instance, with the solid-state reaction method, it is relatively difficult to obtain pure MgTiO 3 , while with the mechano-chemical complexion method a small amount of MgTi 2 O 5 was still detected.…”

Molecular structure design approach to perspective single-source precursors of titanate materials. Synthesis, X-ray single crystal and mass-spectrometric study of M2Ti2(acac)4(OMe)8, M=Mg, Co

“…Magnesium titanate is of interest, for example, as microwave dielectric ceramics [1,2], while cobalt titanate is used in preparation of magnetic ferroelectric nanocomposite materials [3][4][5] and nanoparticulate gas sensors [6]. The synthetic approaches to these ceramic materials developed so far include the solid state reactions between fine powders [7,8] or even nanoparticles [9,10] of homometallic oxides, or Mg(OH) 2 and titanium oxide [11], co-precipitation reactions in aqueous media [6,12], and, only for MgTiO 3 , the alkoxide based sol-gel approach, based on hydrolysis of solutions of n-butoxides in nBuOH [13]. No metal-organic precursor based approach has been proposed so far to CoTiO 3 and no hydrocarbon-soluble or volatile individual heterometallic precursors to magnesium or cobalt titanate materials have been reported.…”