caa a22 4500 388018488 CHVBK 20180307124917.0 cr unu---uuuuu 161130e199811 xx s 000 0 eng 10.1557/JMR.1998.0431 doi S0884291400046653 pii (NATIONALLICENCE)cambridge-10.1557/JMR.1998.0431 Size-controlled synthesis of nanocrystalline BaTiO3 by a sol-gel type hydrolysis in microemulsion-provided nanoreactors [Elektronische Daten] Using the hydrolysis of appropriate alkoxide mixtures in water-in-oil microemulsions, nanocrystalline BaTiO3 has been prepared in the form of nonaggregated, cube-shaped crystals at room temperature without any sintering process as is demonstrated by means of x-ray diffractograms and transmission electron micrographs. By variation of the length of the hydrophilic part of the surfactant molecules, the diameter of the water droplets in the microemulsions could be tuned to values between 8 and 55 nm as determined by dynamic light scattering. The size of the resulting nano-BaTiO3 (6 nm ≤ 〈d〉vol ≤ 17 nm) was evaluated from the line broadening of x-ray reflections and correlates to the droplet size. The particle size distribution is very narrow, and in some cases nearly monodisperse. Copyright © Materials Research Society 1998 Beck Ch Physikalische Chemie, Universität Saarbrücken, D-66123 Saarbrücken, Germany Härtl W. Physikalische Chemie, Universität Saarbrücken, D-66123 Saarbrücken, Germany Hempelmann R. Physikalische Chemie, Universität Saarbrücken, D-66123 Saarbrücken, Germany Journal of Materials Research Cambridge University Press 13/11(1998-11), 3174-3180 0884-2914 13:11<3174 1998 13 JMR https://doi.org/10.1557/JMR.1998.0431 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1557/JMR.1998.0431 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Beck Ch Physikalische Chemie, Universität Saarbrücken, D-66123 Saarbrücken, Germany NATIONALLICENCE 700 1- Härtl W. Physikalische Chemie, Universität Saarbrücken, D-66123 Saarbrücken, Germany NATIONALLICENCE 700 1- Hempelmann R. Physikalische Chemie, Universität Saarbrücken, D-66123 Saarbrücken, Germany NATIONALLICENCE 773 0- Journal of Materials Research Cambridge University Press 13/11(1998-11), 3174-3180 0884-2914 13:11<3174 1998 13 JMR CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge