Controlled synthesis and enhanced catalytic and gas-sensing properties of tin dioxide nanoparticles with exposed high-energy facets

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

106 Scopus Citations
View graph of relations

Author(s)

  • Xiguang Han
  • Shuifen Xie
  • Qin Kuang
  • Yaqi Jiang
  • Subing Zhang
  • Xiaoliang Mu
  • Guangxu Chen
  • Zhaoxiong Xie
  • Lansun Zheng

Detail(s)

Original languageEnglish
Pages (from-to)2283-2289
Journal / PublicationChemistry - A European Journal
Volume18
Issue number8
Publication statusPublished - 20 Feb 2012
Externally publishedYes

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.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review