Synthesis of tin oxide nanosheet with liquid phase crystal growth for gas sensing

被引：0
|
作者：
Choi P.G. [1 ]
Masuda Y. [1 ]
机构：
[1] National Institute of Advanced Industrial Science and Technology (AIST), 2266-98 Anagahora, Shimoshidami, Moriyama-ku, Nagoya
来源：
Funtai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy | 2020年 / 67卷 / 05期
关键词：
Aqueous solution; Gas sensor; Nanosheet; Thin flm; Tin oxide;
D O I：
10.2497/jjspm.67.271
中图分类号：
学科分类号：
摘要：
Tuning the morphology and the structure is one of effective method for improving physical and chemical properties of materials. This study introduces sensing properties dependency on morphology and structure of SnO2. Since a morphology-controlled SnO2 nanosheet in an aqueous solution possessed large surface of (101) crystal facet, the SnO2 nanosheet exhibited superior response and recovery times in addition to a high alkene gas selectivity as compared to a SnO2 nanoparticle, which has large surface of the most stable (110) crystal facet. Furthermore, a structure-controlled bridge-type of SnO2 nanosheet thin flm exhibited an improved gas sensor signal response for the large size of gas molecules. Thus, the improvement of the sensing properties of SnO2 was realized with tuning of morphology and structure through the precise control of crystal growth in the aqueous solution. © 2020 Japan Society of Powder and Powder Metallurgy.
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页码：271 / 277
页数：6
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