Novel gas sensoring materials based on CuS hollow spheres
Novel gas sensoring materials based on CuS hollow spheres
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DOI：
10.1016/j.micromeso.2008.09.035
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发表时间：
2009-02
影响因子：
5.2
通讯作者：
Xuelian Yu;Yu Wang;H. Chan;C. Cao
中科院分区：
文献类型：
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作者：
Xuelian Yu;Yu Wang;H. Chan;C. Cao
采用表面活性剂胶束-模板诱导反应，制备了直径200 nm、壁厚30 nm的CuS空心球。由于其特殊的形貌，该空心球对乙醇具有良好的传感性能，包括高灵敏度、快速响应和快速恢复。灵敏度的增益归因于硫化铜的固有相变性质和它们的中空结构，其促进分析物扩散并增加可用的活性表面积。
CuS hollow spheres with diameters of 200nm and a wall thickness of 30nm have been synthesized in a large scale via surfactant micelle-template inducing reaction. Due to the special morphology, the hollow spheres showed excellent sensing properties to ethanol, including high sensitivity, rapid response rate and fast recovery. The gain in sensitivity is attributed to both the intrinsic phase-transition property of copper sulfide and their hollow architecture that promotes analyte diffusion and increases the available active surface area.