TY - JOUR
T1 - Particle size, uniformity, and mesostructure control of magnetic core/mesoporous silica shell nanocomposite spheres
AU - Zhao, Wenru
AU - Shi, Jian Lin
AU - Chen, Hangrong
AU - Zhang, Lingxia
PY - 2006/12
Y1 - 2006/12
N2 - Well-structured and monodisperse nanocomposite spheres with a magnetic core/mesoporous silica shell structure (MCMS) were obtained. The effects on the structure and morphology of the MCMS spheres were investigated under various synthesis conditions, including reaction time, quantity of silicate sources of tetraethoxysilane (TEOS) and n-octadecyltrimethoxysilane (C18TMS), ratio of TEOS/C18TMS, and ratio of H2O/EtOH in the starting solution. The particle size of the MCMS spheres and pore diameter are tunable in a certain range with 100% yield. A synthesis mechanism of the mesoporous silica shell was proposed that proceeds via three main stages. The silica shell proved to be effective on protecting the cores from leaching out in acidic conditions.
AB - Well-structured and monodisperse nanocomposite spheres with a magnetic core/mesoporous silica shell structure (MCMS) were obtained. The effects on the structure and morphology of the MCMS spheres were investigated under various synthesis conditions, including reaction time, quantity of silicate sources of tetraethoxysilane (TEOS) and n-octadecyltrimethoxysilane (C18TMS), ratio of TEOS/C18TMS, and ratio of H2O/EtOH in the starting solution. The particle size of the MCMS spheres and pore diameter are tunable in a certain range with 100% yield. A synthesis mechanism of the mesoporous silica shell was proposed that proceeds via three main stages. The silica shell proved to be effective on protecting the cores from leaching out in acidic conditions.
UR - https://www.scopus.com/pages/publications/33846271420
U2 - 10.1557/jmr.2006.0381
DO - 10.1557/jmr.2006.0381
M3 - 文章
AN - SCOPUS:33846271420
SN - 0884-2914
VL - 21
SP - 3080
EP - 3089
JO - Journal of Materials Research
JF - Journal of Materials Research
IS - 12
ER -