Synthesis of Tin Dioxide Octahedral Nanoparticles with Exposed High-Energy {221} Facets and Enhanced Gas-Sensing Properties

Synthesis of Tin Dioxide Octahedral Nanoparticles with Exposed High-Energy {221} Facets and Enhanced Gas-Sensing Properties

Selective exposure of high‐energy {221} facets with many surface dangling bonds, (111) terraces, and (110) steps (bottom picture) at the surface of octahedral SnO2 nanoparticles (top) through a simple hydrothermal synthesis route gives them enhanced gas‐sensing performance over particles with other...

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Veröffentlicht in:Angewandte Chemie (International ed.) 2009-11, Vol.48 (48), p.9180-9183
Hauptverfasser: Han, Xiguang, Jin, Mingshang, Xie, Shuifen, Kuang, Qin, Jiang, Zhiyuan, Jiang, Yaqi, Xie, Zhaoxiong, Zheng, Lansun
Format: Artikel
Sprache:eng
Schlagworte:
hydrothermal synthesis
nanoparticles
sensors
surface engineering
tin dioxide
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Zusammenfassung:Selective exposure of high‐energy {221} facets with many surface dangling bonds, (111) terraces, and (110) steps (bottom picture) at the surface of octahedral SnO2 nanoparticles (top) through a simple hydrothermal synthesis route gives them enhanced gas‐sensing performance over particles with other shapes, whereby the sensing activity is proportional to the fraction of {221} facets among the exposed surfaces.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.200903926