caa a22 4500 463228316 CHVBK 20180405153234.0 cr unu---uuuuu 170326e20070901xx s 000 0 eng 10.1007/s10853-007-1596-8 doi (NATIONALLICENCE)springer-10.1007/s10853-007-1596-8 Silica coating of vapor grown carbon fibers [Elektronische Daten] [Huma Jafry, Elizabeth Whitsitt, Andrew Barron] Silica coatings have been applied to vapor grown carbon fibers (VGCFs) by a liquid phase deposition process. Unlike the coating of single walled carbon nanotubes, the addition of a surfactant to "solubilize” the VGCFs results in an extremely non-uniform coating consisting of spherical silica aggregated around the tubes. As was observed for fullerenes, hydroxylation of the surface of the VGCF appears to be key to the formation of a uniform silica coating. Irrespective of the type of VGCF, heating a suspension of VGCFs in nitric acid to dryness (Type II) gave us the best results in terms of silica growth around the VGCF and there is a correlation between the percent of hydroxyls present on the VGCF surface and on the type of growth that occurs on the VGCF. Nitric acid treatment of VGCFs for 1day in solution were precipitated with acetone (Type III treatment), and then coated with silica. This acid treatment made the coated fibers highly soluble in EtOH. Springer Science+Business Media, LLC, 2007 Jafry Huma Department of Chemistry, Department of Mechanical Engineering and Materials Science, and Richard E. Smalley Institute for Nanoscale Science and Technology, Rice University, 77005, Houston, TX, USA aut Whitsitt Elizabeth Department of Chemistry, Department of Mechanical Engineering and Materials Science, and Richard E. Smalley Institute for Nanoscale Science and Technology, Rice University, 77005, Houston, TX, USA aut Barron Andrew Department of Chemistry, Department of Mechanical Engineering and Materials Science, and Richard E. Smalley Institute for Nanoscale Science and Technology, Rice University, 77005, Houston, TX, USA aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/17(2007-09-01), 7381-7388 0022-2461 42:17<7381 2007 42 10853 https://doi.org/10.1007/s10853-007-1596-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-007-1596-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Jafry Huma Department of Chemistry, Department of Mechanical Engineering and Materials Science, and Richard E. Smalley Institute for Nanoscale Science and Technology, Rice University, 77005, Houston, TX, USA aut NATIONALLICENCE 700 1- Whitsitt Elizabeth Department of Chemistry, Department of Mechanical Engineering and Materials Science, and Richard E. Smalley Institute for Nanoscale Science and Technology, Rice University, 77005, Houston, TX, USA aut NATIONALLICENCE 700 1- Barron Andrew Department of Chemistry, Department of Mechanical Engineering and Materials Science, and Richard E. Smalley Institute for Nanoscale Science and Technology, Rice University, 77005, Houston, TX, USA aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/17(2007-09-01), 7381-7388 0022-2461 42:17<7381 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer