Structural Characterizations of Organo-Capped Barium Titanate Nanoparticles Prepared by the Wet Chemical Route

Stearic acid gel derived MgTiO3 nanoparticles: A low temperature intermediate phase of Mg2TiO4

“…The CH 2 scissoring and in-phase rocking bands appear at around 1462 and 719 cm −1 , respectively. All these observations confirm the existence of long organic chains in the Mg-Ti gel [20]. Peaks at 1745 and 1178 cm −1 represent the stretching vibration band of C O and C-O-C groups belonging to ester, which indicate that the reaction (3) may occur to form butyl stearate in the Mg-Ti gel.…”

Effect of particle size on surface modification of silica nanoparticles by using silane coupling agents and their dispersion stability in methylethylketone

“…3 shows the FT-IR spectrum of SNPs modified by C6S. The adsorption at 2800-3000, 3660, and 3750 cm −1 can be attributed to hydrocarbon chain [18], hydrogen-bonded silanol groups, and isolated silanol groups [13,[19][20][21][22], respectively. In case of SNPs prior to surface modification, no hydrocarbon chains were detected.…”

Wet chemical synthesis of redispersible crystalline BaTiO3 in organic medium

“…Several approaches have been made to overcome this problem, such as surface modification of the nanoparticles by using oleic acid, acetic acid, etc. [28][29][30], synthesis of mono-dispersed crystalline particles using Ba-Ti-single alkoxide precursor [31] and so on. Thus, considering the current trend of microelectronic industries, and increasing interest of BaTiO 3 based nanocomposites [10,[20][21][22][23][24][25], the dispersion of crystalline nanoparticles into organic media requires further attention to improve the dispersibility of crystalline particles into organic media, because of the fact that most of the organic polymers are soluble in organic solvents.…”