Controlled synthesis and enhanced catalytic and gas-sensing properties of tin dioxide nanoparticles with exposed high-energy facets
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Pages (from-to) | 2283-2289 |
Journal / Publication | Chemistry - A European Journal |
Volume | 18 |
Issue number | 8 |
Publication status | Published - 20 Feb 2012 |
Externally published | Yes |
Link(s)
Abstract
A morphology evolution of SnO <sub>2</sub> nanoparticles from low-energy facets (i.e., {101} and {110}) to high-energy facets (i.e., {111}) was achieved in a basic environment. In the proposed synthetic method, octahedral SnO <sub>2</sub> nanoparticles enclosed by high-energy {111} facets were successfully synthesized for the first time, and tetramethylammonium hydroxide was found to be crucial for the control of exposed facets. Furthermore, our experiments demonstrated that the SnO <sub>2</sub> nanoparticles with exposed high-energy facets, such as {221} or {111}, exhibited enhanced catalytic activity for the oxidation of CO and enhanced gas-sensing properties due to their high chemical activity, which results from unsaturated coordination of surface atoms, superior to that of low-energy facets. These results effectively demonstrate the significance of research into improving the physical and chemical properties of materials by tailoring exposed facets of nanomaterials. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Research Area(s)
- hydrothermal synthesis, nanoparticles, oxidation, sensors, tin
Bibliographic Note
Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
Citation Format(s)
Controlled synthesis and enhanced catalytic and gas-sensing properties of tin dioxide nanoparticles with exposed high-energy facets. / Wang, Xue; Han, Xiguang; Xie, Shuifen et al.
In: Chemistry - A European Journal, Vol. 18, No. 8, 20.02.2012, p. 2283-2289.
In: Chemistry - A European Journal, Vol. 18, No. 8, 20.02.2012, p. 2283-2289.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review