研究目的
Investigating the enhancement of gas sensing properties of WO3 nanorods through Ag decoration for highly sensitive ammonia detection.
研究成果
The Ag/WO3 sensor exhibits significantly improved sensitivity and selectivity to ammonia, with a response of 300 for 100 ppm ammonia and the ability to detect as low as 50 ppb ammonia. The sensor also shows excellent repeatability and stability.
研究不足
The study focuses on ammonia detection and may not be directly applicable to other gases without further modification.
1：Experimental Design and Method Selection:
WO3 nanorods were synthesized via a one-step hydrothermal method, and Ag nanoparticles were deposited on the WO3 surface by in situ photoreduction method.
2：Sample Selection and Data Sources:
(NH4)10W12O
3：2H2O, AgNO3, HCL, and CH4O were used as reagents. List of Experimental Equipment and Materials:
SEM, TEM, and XRD were used for characterization.
4：Experimental Procedures and Operational Workflow:
Hydrothermal synthesis at 170 °C for 24 h, followed by photoreduction under a 400W Xe lamp.
5：Data Analysis Methods:
Gas response was calculated based on current changes in air and target gas.
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