CeO₂ Enhanced Ethanol Sensing Performance in a CdS Gas Sensor.
CeO₂ Enhanced Ethanol Sensing Performance in a CdS Gas Sensor.
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CeO2 增强了 CdS 气体传感器中的乙醇传感性能
DOI：
10.3390/s17071577
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发表时间：
2017-07-05
期刊：
影响因子：
--
通讯作者：
Zhang M
中科院分区：
文献类型：
--
作者：
Li M;Ren W;Wu R;Zhang M
采用低温溶剂热法制备了CdS纳米线，并在其表面修饰了CeO 2纳米粒子。研究了纯CdS和不同CeO 2含量修饰的CdS的乙醇气敏特性。结果表明，CeO 2修饰后CdS的气敏性能得到了显著提高。特别是，5原子%的CeO 2/CdS复合材料表现出更高的响应100 ppm的乙醇（约52），这是2.6倍以上的纯CdS。获得了快速的响应和恢复时间（分别小于12 s和3 s）以及优异的选择性。这些结果使得CeO 2修饰的CdS纳米线成为乙醇传感应用的良好候选者。
CdS nanowires (NWs) were fabricated through a facile low-temperature solvothermal method, following which CeO2 nanoparticles were modified on the NWs. The ethanol sensing characteristics of pure CdS and decorated ones with different CeO2 content were studied. It was found that the sensing performance of CdS was significantly improved after CeO2 decoration. In particular, the 5 at% CeO2/CdS composite exhibited a much higher response to 100 ppm ethanol (about 52), which was 2.6 times larger than that of pure CdS. A fast response and recovery time (less than 12 s and 3 s, respectively) were obtained as well as an excellent selectivity. These results make the CeO2-decorated CdS NWs good candidates for ethanol sensing applications.
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