4.7 Article

Aerosol-assisted synthesis of monodisperse single-crystalline α-cristobalite nanospheres

Journal

CHEMICAL COMMUNICATIONS
Volume 48, Issue 9, Pages 1293-1295

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c1cc15713b

Keywords

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Funding

  1. National Science Foundation [EF-0830117, CMMI-0968843]
  2. National Institutes of Health [U19 ES019528]
  3. UCLA Center for Nanobiology and Predictive Toxicology
  4. U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering at Sandia National Laboratories
  5. DOE BES [DE-FG02-02-ER15368]
  6. Army Research Office [W911NF-07-1-0320]
  7. Jiangsu Higher Education Institutions
  8. U.S. Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000]
  9. Div Of Civil, Mechanical, & Manufact Inn
  10. Directorate For Engineering [0968843] Funding Source: National Science Foundation

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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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