TY - JOUR
T1 - Preparation of micrometer- to sub-micrometer-sized nanostructured silica particles using high-energy ball milling
AU - Hampsey, J. Eric
AU - De Castro, Claudio L.
AU - McCaughey, Byron
AU - Wang, Donghai
AU - Mitchell, Brian S.
AU - Lu, Yunfeng
PY - 2004/7
Y1 - 2004/7
N2 - Nanostructured porous silica particles with sizes in the micrometer to sub-micrometer range are of great interest due to their potential applications as catalyst supports and nanocomposite materials. However, if these particles are to be used in industry, a process must be developed to affordably produce them on a large scale. This paper reports on a high-energy ball-milling process that has been used to create micrometer- to sub-micrometer-sized mesoporous silica particles starting from a silica xerogel prepared by a surfactant self-assembly sol-gel process. We have studied various milling conditions such as milling media (zirconia, stainless steel, or steel-centered nylon balls), milling time, and the presence of surfactants during milling and the resulting effect on particle size and pore structure. Results from transmission electron microscopy, scanning electron microscopy, X-ray diffraction, light scattering, and nitrogen adsorption demonstrate the feasibility of producing large quantities of nanostructured particles by this simple milling process.
AB - Nanostructured porous silica particles with sizes in the micrometer to sub-micrometer range are of great interest due to their potential applications as catalyst supports and nanocomposite materials. However, if these particles are to be used in industry, a process must be developed to affordably produce them on a large scale. This paper reports on a high-energy ball-milling process that has been used to create micrometer- to sub-micrometer-sized mesoporous silica particles starting from a silica xerogel prepared by a surfactant self-assembly sol-gel process. We have studied various milling conditions such as milling media (zirconia, stainless steel, or steel-centered nylon balls), milling time, and the presence of surfactants during milling and the resulting effect on particle size and pore structure. Results from transmission electron microscopy, scanning electron microscopy, X-ray diffraction, light scattering, and nitrogen adsorption demonstrate the feasibility of producing large quantities of nanostructured particles by this simple milling process.
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U2 - 10.1111/j.1151-2916.2004.tb07723.x
DO - 10.1111/j.1151-2916.2004.tb07723.x
M3 - Article
AN - SCOPUS:4344605833
SN - 0002-7820
VL - 87
SP - 1280
EP - 1286
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
IS - 7
ER -