期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 288, 期 -, 页码 699-706出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2019.03.004
关键词
Flower-like Co3O4; Gas sensor; Glucose; Acetone
资金
- National Natural Science Foundation of China [61671299]
- Shanghai Science and Technology Grant [16JC1402000, 17ZR1414100]
- Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning [GZ2016005]
- Instrumental Analysis Center of Shanghai Jiao Tong University
- Center for Advanced Electronic Materials and Devices of Shanghai Jiao Tong University
Ultrathin Co3O4 nanosheets are excellent candidate materials for high performance chemiresistive gas sensors. However, the restacking and aggregation of nanosheets during sensor fabrication greatly impact the sensing response. In this work, by adding the structure-directing agent of glucose, hierarchical flower-like Co3O4 nanostructures assembled by porous nanosheets were synthesized through hydrothermal method with subsequent calcination treatment to further improve the sensing performance. The fabricated hierarchical flower-like Co3O4 sensor exhibited the highest response of 48.1 toward 100 ppm acetone at 130 degrees C, which was 7.2 times higher than the Co3O4 microplates synthesized without glucose. The excellent long-term stability and selectivity of gas sensors were further validated and the theoretical limit of detection was experimentally calculated to be as low as 200 ppb. Flower-like Co3O4 nanostructures for acetone gas sensor with good performance provide a promising candidate to fabricate high performance gas sensor for safety monitoring and health care.
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。
推荐
暂无数据