Gas sensing performances of sb-doped SnO2 nanograins fabricated by co-precipitation in alcoholic or aqueous solvent

被引：0

作者：

Zhu, Lian-Feng ^{[1
]}

Huang, Jue ^{[2
]}

Zhang, Chang-Yue ^{[2
]}

Gai, Guo-Sheng ^{[1
]}

Yao, You-Wei ^{[2
]}

机构：

[1] Department of Materials Science and Engineering, Tsinghua University, Beijing

[2] Graduated School at Shenzhen, Tsinghua University, Shenzhen, 518055, Guangdong Province

来源：

Applied Mechanics and Materials | 2014年 / 692卷

关键词：

Alcoholic; Antimony; Co-precipitation; Ethanol sensing; Gas sensor; Tin oxide;

D O I：

10.4028/www.scientific.net/AMM.692.460

中图分类号：

学科分类号：

摘要：

Gas sensitivity of Sb-doped SnO2 nanograins co-precipitated respectively from ethanol and de-ionized water has been compared. Gas sensing stability of the Sb-SnO2 from ethanol (SnO2-E) was significantly superior to that of Sb-SnO2 from de-ionized water (SnO2-W): working temperature of sensor using SnO2-E was as high as 400 °C, whereas, 250 °C, for sensor using SnO2-W. Furthermore, resistance (R) of SnO2-E was less affected by annealing temperature: the ratio of air resistance annealed at 800 °C (R800) to 400 °C (R400) for SnO2-E and SnO2-W was 8 (4 kΩ/0.5 kΩ) and 1.4×105, 100 MΩ/0.7 kΩ) respectively. © (2014) Trans Tech Publications, Switzerland.

引用

页码：460 / 464

页数：4

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