【作者】：Wang Qingji, Wang Chen, Sun Hongbin, Sun Peng, Wang Yongzhi, Lin Jun*, Lu Geyu
【题目】：Microwave assisted synthesis of hierarchical Pd/SnO2 nanostructures for CO gas sensor
【关键词】：Microwave-assisted hydrothermal method,SnO2,Pd-loaded,CO sensor
【版面信息】：Sensors and Actuators B: Chemical 222 (2016) 257-263
摘要:
In this paper, we present a facile one-step microwave assisted hydrothermal route for the synthesis of the unloaded and Pd-loaded SnO2nanostructures. The Pd was grown in situ on the SnO2nanostructure, constructing Pd/SnO2. A gas sensor based on the as-prepared Pd/SnO2was fabricated and tested for response to carbon monoxide gas. The results indicated that the sensor using 3.0 wt% Pd-loaded SnO2to 100 PPm carbon monoxide performed a superior sensing properties compared to 0 wt%, 1.5 wt%, and 4.5 wt% Pd-loaded samples at a relatively low temperature (100℃). Such enhanced gas sensing performances could be attributed to both the contribution of Pd-loaded and the in situ method. In addition, the one-step in situ microwave assisted loading process provides a promising and versatile choice for the preparation of gas sensing materials.
