The Library
Keeping it small - restricting the growth of nanocrystals
Tools
Chadwick, A. V., Savin, S. L. P., O'Dell, Luke A. and Smith, Mark E. (2006) Keeping it small - restricting the growth of nanocrystals. Journal of Physics-Condensed Matter, Vol.18 (No.15). L163-L170. doi:10.1088/0953-8984/18/15/L01 ISSN 0953-8984.
Research output not available from this repository.
Request-a-Copy directly from author or use local Library Get it For Me service.
Official URL: http://dx.doi.org/10.1088/0953-8984/18/15/L01
Abstract
A method for preventing the growth of oxide nanoparticles is presented. A second oxide phase (e.g. SiO2) is infiltrated between the principal nanoparticles, acting as a brake on grain growth at elevated temperature. The effect of the second oxide can be significant, for example reducing the growth of SnO2 by nearly an order of magnitude at 1000 degrees C. The approach is shown to be generic, being applied to six different oxides. The structures of both the nanoparticles and the even smaller secondary particles are probed by a combination of EXAFS and solid state NMR. From the Sn K-edge EXAFS it is clear that the major component SnO2, nanoparticles are locally highly ordered, with the intensity scaling with particle size, reflecting the proportionate contribution of the lower coordinations on the surface. Si-29 MAS-NMR of SiO2 particles between SnO2 demonstrates that they are significantly more disordered than bulk SiO2 after similar heat treatment.
Item Type: | Journal Article | ||||
---|---|---|---|---|---|
Subjects: | Q Science > QC Physics | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Journal or Publication Title: | Journal of Physics-Condensed Matter | ||||
Publisher: | Institute of Physics Publishing Ltd. | ||||
ISSN: | 0953-8984 | ||||
Official Date: | 19 April 2006 | ||||
Dates: |
|
||||
Volume: | Vol.18 | ||||
Number: | No.15 | ||||
Number of Pages: | 8 | ||||
Page Range: | L163-L170 | ||||
DOI: | 10.1088/0953-8984/18/15/L01 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Open Access (Creative Commons) | ||||
Funder: | Engineering and Physical Sciences Research Council (EPSRC) | ||||
Grant number: | GR/S61881, GR/S61898 |
Data sourced from Thomson Reuters' Web of Knowledge
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |