4.6 Article

Synthesis, characterization, and gas-sensing properties of macroporous Ag/SnO2 composite by a template method

期刊

出版社

ELSEVIER SCI LTD
DOI: 10.1016/j.mssp.2021.106256

关键词

Template; Macroporous Ag/SnO2; Gas-sensing; Selectivity

资金

  1. National Natural Science Foundation of China [U1704255, 62173129]
  2. Program for Innovative Research Team of Henan Polytechnic University [T2019-1]

向作者/读者索取更多资源

Macroporous SnO2 (M-SnO2) materials with high specific surface area were synthesized by template method, and Ag modified macroporous SnO2 (M-Ag/SnO2) gas sensing materials were prepared to enhance gas sensing performance. The outstanding sensing properties of M-Ag/SnO2 materials are attributed to their high specific surface area and catalytic activity, showing great potential for designing high performance ethanol sensors.
Macroporous SnO2 (M-SnO2) materials with high specific surface area were synthesized by template method. In order to further improve the gas sensing performance of the sensor, Ag modified macroporous SnO2 (M-Ag/SnO2) gas sensing materials were finally prepared. The morphology, valence state and crystal structure of the samples were characterized by SEM, XRD, TEM, UV-Vis and XPS. The characterization results indicated that the macroporous gas sensing materials were successfully synthesized, and there were Ag nanoparticles in the samples. The gas sensing test showed that, compared with pure SnO2 (180), the gas sensitive response value of M SnO2 with high specific surface area is 600, which is about 3.33 times than that of pure SnO2. Moreover, M-Ag/SnO2 sensor exhibits higher response value (830) to 10000 ppm ethanol gas at 260 degrees C, which was 4.61 times higher than that of pure SnO2 nanoparticles. This outstanding gas sensing properties are derived from the high specific surface area and catalytic activity of the M-Ag/SnO2 materials. More importantly, the great reversibility and repeatability of the material makes it have a broad application prospect in designing high performance ethanol sensors.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据