研究目的
To improve ethanol sensing performance of MoO3 nanostructures by tailoring their architecture through pulsed temperature during hydrothermal growth to achieve high surface area and defects.
研究成果
MoO3 nanofibers synthesized with pulsed temperature exhibit superior ethanol sensing due to higher crystallinity, surface area, and defects compared to nanobelts, making them promising for sensor applications.
研究不足
The study is limited to ethanol sensing; other gases or conditions were not tested. The pulsed temperature method may require optimization for different materials or scales.
1：Experimental Design and Method Selection:
Hydrothermal synthesis with pulsed temperature application to transform MoO3 nanobelts into nanofibers, aiming to enhance surface defects and sensing properties.
2：Sample Selection and Data Sources:
Synthesized MoO3 nanobelts and nanofibers using ammonium heptamolybdate tetrahydrate as precursor.
3：List of Experimental Equipment and Materials:
Autoclave, centrifuge, FE-SEM (Sigma Supra?55 of Carl Zeiss), XRD (Rigaku SmartLab X-ray diffractometer), TEM (Hitachi-HD2300A), HR-TEM (JEOL JEM-2010), surface area analyzer (Autosorb iQ2), interdigitated electrode (Pt) coated SiO2/Si substrate, dynamic flow-through measurement system for sensing tests.
4：Experimental Procedures and Operational Workflow:
Dissolve precursor in water, add nitric acid, transfer to autoclave, heat to 120°C with constant or pulsed temperature (12h heat/12h cool cycles for 48h total), collect precipitate, wash and dry, characterize, fabricate sensors by drop casting on electrodes and calcining, measure sensing properties.
5：Data Analysis Methods:
Characterization data analyzed using standard techniques for morphology, crystallinity, surface area, and sensing response.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容-
FE-SEM
Sigma Supra?55
Carl Zeiss
Characterization of morphology for MoO3 nanostructures
-
XRD
SmartLab
Rigaku
X-ray diffraction analysis for crystallinity
-
TEM
HD2300A
Hitachi
Transmission electron microscopy for detailed imaging
-
HR-TEM
JEM-2010
JEOL
High-resolution transmission electron microscopy for surface defect analysis
-
Surface Area Analyzer
Autosorb iQ2
Nitrogen adsorption-desorption for surface area measurement
-
Autoclave
Hydrothermal synthesis of nanostructures
-
Interdigitated Electrode
Substrate for sensor fabrication, coated with Pt on SiO2/Si
-
Dynamic Flow-Through Measurement System
Measurement of VOC sensing properties
-
登录查看剩余6件设备及参数对照表
查看全部
