Synthesis of SnO2 nano-dodecahedrons with high-energy facets and their sensing properties to SO2 at low temperature

被引：41

作者：

Ma, Xiaohui ^{[1
,2
]}

Qin, Qixuan ^{[1
,2
]}

Zhang, Nan ^{[1
,2
]}

Chen, Chuan ^{[4
]}

Liu, Xin ^{[4
]}

Chen, Yu ^{[1
,2
,4
]}

Li, Chuannan ^{[1
,2
]}

Ruan, Shengping ^{[1
,2
,3
]}

机构：

[1] Jilin Univ, State Key Lab Integrated Optoelect, Changchun 130012, Jilin, Peoples R China

[2] Jilin Univ, Coll Elect Sci & Engn, Changchun 130012, Jilin, Peoples R China

[3] State Key Lab Appl Opt, Changchun 130023, Jilin, Peoples R China

[4] Global Energy Interconnect Res Inst, Beijing 102211, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 723卷

基金：

中国国家自然科学基金;

关键词：

Tin oxide; Dodecahedron; Sulfur dioxide; Gas sensor; High-energy facets; SULFUR-DIOXIDE; TIN DIOXIDE; SENSOR; NANOPARTICLES; OXIDE; NANOCRYSTALS; PERFORMANCE; EFFICIENCY; BATTERIES; ELECTRODE;

D O I：

10.1016/j.jallcom.2017.06.273

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Dodecahedron-like SnO2 nanomaterial was synthesized via a solvothermal method under mild reaction condition. The morphological and structural characterization results indicated that the as-prepare dodecahedral SnO2 nanocrystallines with the average length of 130 nm and width of 45 nm were partially surrounded by high surface-energy {221} facets. The gas-sensing performance of the sample was investigated and the experiment results showed that the sensor had a good sensitivity to sulfur dioxide (SO2) at 183 degrees C. To 800 ppb SO2, the response could reach 1.32 and the response time was about 10 s. The good SO2-sensing performance of SnO2 nanocrystallines was closely related to the high surface-energy {221} facets whose surface possessed more dangling bonds and the corresponding SO2-sensing mechanism was discussed. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：595 / 601

页数：7

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