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Aerosol-assisted synthesis of monodisperse single-crystalline α-cristobalite nanospheres
被引:21
作者:
Jiang, Xingmao
[1
,2
,3
,4
]
Bao, Lihong
[5
]
Cheng, Yung-Sung
[3
,4
]
Dunphy, Darren R.
[1
]
Li, Xiaodong
[5
]
Brinker, C. Jeffrey
[1
,6
]
机构:
[1] Lovelace Resp Res Inst, Aerosol & Resp Dosimetry Program, Albuquerque, NM 87108 USA
[2] Changzhou Univ, Key Lab Fine Petrochem Engn, Changzhou 213164, Peoples R China
[3] Univ New Mexico, Dept Chem & Nucl Engn, Albuquerque, NM 87131 USA
[4] Univ New Mexico, Ctr Microengineered Mat, Albuquerque, NM 87131 USA
[5] Univ S Columbia, Dept Mech Engn, Columbia, SC 29208 USA
[6] Sandia Natl Labs, Albuquerque, NM 87106 USA
基金:
美国国家卫生研究院;
美国国家科学基金会;
关键词:
HYDROTHERMAL SYNTHESIS;
SILICA GLASS;
QUARTZ;
PARTICLES;
GROWTH;
KINETICS;
SIZE;
D O I:
10.1039/c1cc15713b
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
Monodisperse single-crystalline alpha-cristobalite nanospheres have been synthesized by hydrocarbon-pyrolysis-induced carbon deposition on amorphous silica aerosol nanoparticles, devitrification of the coated silica at high temperature, and subsequent carbon removal by oxidation. The nanosphere size can be well controlled by tuning the size of the colloidal silica precursor. Uniform, high-purity nanocrystalline alpha-cristobalite is important for catalysis, nanocomposites, advanced polishing, and understanding silica nanotoxicology.
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页码:1293 / 1295
页数:3
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