Micron to sub-micron sized highly ordered mesoporous silica particles prepared using a high energy ball milling process

J. Eric Hampsey, Claudio L. De Castro, Byron F. McCaughey, Donghai Wang, Brian S. Mitchell, Yunfeng Lu

Research output: Contribution to journalConference article

Abstract

Highly ordered mesoporous silica particles with sizes in the micron to sub-micron range are of great interest due to their applications as catalysts and filler materials. Currently, mesoporous silica particles are synthesized using large amounts of solvent, which is impractical for large scale-up in industry. This paper reports on a high-energy ball milling process that has been employed to create micron to sub-micron sized mesoporous silica particles starting from a silica xerogel prepared by a surfactant self-assembly sol-gel process. We have studied the effect of parameters such as milling media (e.g., zirconia, stainless steel, and steel centered nylon balls), milling time, the presence of surfactants during milling, particle size, and pore structure. Results from transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), and nitrogen adsorption demonstrate the feasibility of producing large quantities of mesostructured particles by a simple milling process.

Original languageEnglish (US)
Pages (from-to)83-88
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
Volume775
StatePublished - Dec 1 2003
EventSelf-Assembled Nanostructured Materials - San Francisco, CA, United States
Duration: Apr 22 2003Apr 25 2003

Fingerprint

Ball milling
Silicon Dioxide
balls
Silica
silicon dioxide
Surface-Active Agents
Surface active agents
Xerogels
surfactants
energy
Steel
Stainless Steel
Nylons
Pore structure
xerogels
Zirconia
Nylon (trademark)
Self assembly
Sol-gel process
Fillers

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Hampsey, J. Eric ; De Castro, Claudio L. ; McCaughey, Byron F. ; Wang, Donghai ; Mitchell, Brian S. ; Lu, Yunfeng. / Micron to sub-micron sized highly ordered mesoporous silica particles prepared using a high energy ball milling process. In: Materials Research Society Symposium - Proceedings. 2003 ; Vol. 775. pp. 83-88.
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Micron to sub-micron sized highly ordered mesoporous silica particles prepared using a high energy ball milling process. / Hampsey, J. Eric; De Castro, Claudio L.; McCaughey, Byron F.; Wang, Donghai; Mitchell, Brian S.; Lu, Yunfeng.

In: Materials Research Society Symposium - Proceedings, Vol. 775, 01.12.2003, p. 83-88.

Research output: Contribution to journalConference article

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AU - Hampsey, J. Eric

AU - De Castro, Claudio L.

AU - McCaughey, Byron F.

AU - Wang, Donghai

AU - Mitchell, Brian S.

AU - Lu, Yunfeng

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N2 - Highly ordered mesoporous silica particles with sizes in the micron to sub-micron range are of great interest due to their applications as catalysts and filler materials. Currently, mesoporous silica particles are synthesized using large amounts of solvent, which is impractical for large scale-up in industry. This paper reports on a high-energy ball milling process that has been employed to create micron to sub-micron sized mesoporous silica particles starting from a silica xerogel prepared by a surfactant self-assembly sol-gel process. We have studied the effect of parameters such as milling media (e.g., zirconia, stainless steel, and steel centered nylon balls), milling time, the presence of surfactants during milling, particle size, and pore structure. Results from transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), and nitrogen adsorption demonstrate the feasibility of producing large quantities of mesostructured particles by a simple milling process.

AB - Highly ordered mesoporous silica particles with sizes in the micron to sub-micron range are of great interest due to their applications as catalysts and filler materials. Currently, mesoporous silica particles are synthesized using large amounts of solvent, which is impractical for large scale-up in industry. This paper reports on a high-energy ball milling process that has been employed to create micron to sub-micron sized mesoporous silica particles starting from a silica xerogel prepared by a surfactant self-assembly sol-gel process. We have studied the effect of parameters such as milling media (e.g., zirconia, stainless steel, and steel centered nylon balls), milling time, the presence of surfactants during milling, particle size, and pore structure. Results from transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), and nitrogen adsorption demonstrate the feasibility of producing large quantities of mesostructured particles by a simple milling process.

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