caa a22 4500 463229681 CHVBK 20180405153238.0 cr unu---uuuuu 170326e20070701xx s 000 0 eng 10.1007/s10853-006-0902-1 doi (NATIONALLICENCE)springer-10.1007/s10853-006-0902-1 Formation of monetite nanoparticles and nanofibers in reverse micelles [Elektronische Daten] [Kun Wei, Chen Lai, Yingjun Wang] Reverse micelles solution of water and cyclohexane containing either cetyltrimethylammonium bromide (CTAB) or polyoxyethylene-8-dodecyl ether (C12E8) surfactants and n-pentanol as co-surfactant have been used as organized reaction microenvironments for monetite (dicalcium phosphate anhydrous, DCPA) precipitation. Well-crystallized monetite nanoparticles with various morphologies such as spheres, nanofibers and bundles of nanowires were obtained in CTAB reverse micelles solution. The molar ratio of water and surfactant (W o) and the molar ratio of co-surfactant and surfactant (P o) have great influence on the structure and morphology of the final products. A generalized mechanism for the growth of monetite in reverse micelles is proposed, in which the interaction between the surfactant molecules and PO 4 3− ions leads to the formation of a surfactant/CaHPO4 complex. It is because of this central complex that the further fusion with reactant ions containing reverse micelles will occur only in one direction. Changing the content of water and co-surfactant has great influence on the morphology of reverse micelles and on the interaction between the surfactant/CaHPO4 complex leading to a fine tuning of the morphology of products. By contrast, lacking of this interaction in the C12E8 system only tablet amorphous calcium phosphate can be formed. Springer Science+Business Media, LLC, 2007 Wei Kun Key Laboratory of Specially Function Materials and Advanced Manufacturing Technology of Ministry of Education, South China university of Technology, 510640, Guangzhou, China aut Lai Chen Key Laboratory of Specially Function Materials and Advanced Manufacturing Technology of Ministry of Education, South China university of Technology, 510640, Guangzhou, China aut Wang Yingjun Key Laboratory of Specially Function Materials and Advanced Manufacturing Technology of Ministry of Education, South China university of Technology, 510640, Guangzhou, China aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/14(2007-07-01), 5340-5346 0022-2461 42:14<5340 2007 42 10853 https://doi.org/10.1007/s10853-006-0902-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-0902-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wei Kun Key Laboratory of Specially Function Materials and Advanced Manufacturing Technology of Ministry of Education, South China university of Technology, 510640, Guangzhou, China aut NATIONALLICENCE 700 1- Lai Chen Key Laboratory of Specially Function Materials and Advanced Manufacturing Technology of Ministry of Education, South China university of Technology, 510640, Guangzhou, China aut NATIONALLICENCE 700 1- Wang Yingjun Key Laboratory of Specially Function Materials and Advanced Manufacturing Technology of Ministry of Education, South China university of Technology, 510640, Guangzhou, China aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/14(2007-07-01), 5340-5346 0022-2461 42:14<5340 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer