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

被引：405

作者：

Han, Xiguang ^{[1
]}

Jin, Mingshang ^{[1
]}

Xie, Shuifen ^{[1
]}

Kuang, Qin ^{[1
]}

Jiang, Zhiyuan ^{[1
]}

Jiang, Yaqi ^{[1
]}

Xie, Zhaoxiong ^{[1
]}

Zheng, Lansun ^{[1
]}

机构：

[1] Xiamen Univ, Dept Chem, Coll Chem & Chem Engn, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2009年 / 48卷 / 48期

基金：

中国国家自然科学基金;

关键词：

hydrothermal synthesis; nanoparticles; sensors; surface engineering; tin dioxide; HIGH-INDEX FACETS; SNO2; NANOWIRES; SURFACES; METHANE; SHAPE; CO; NANOCRYSTALS; PERCENTAGE; NANOSHEETS; OXIDATION;

D O I：

10.1002/anie.200903926

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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. © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：9180 / 9183

页数：4

共 38 条

[1]

[Anonymous], 2008, ANGEW CHEMIE, DOI DOI 10.1002/ANGE.200802750

[2] Gas-phase-dependent properties of SnO2 (110), (100), and (101) single-crystal surfaces:: Structure, composition, and electronic properties -: art. no. 165414 [J].