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Synthesis and enhanced gas sensing properties of Au-nanoparticle decorated CdS nanowires

机译：Au-Naniparticle装饰CDS纳米线的合成及增强气体传感性能

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CdS nanowires (NWs) with an average diameter of 30 nm were synthesized by a solvothermal method and then Au nanoparticles with a size of 10–25 nm were decorated on the surface of the as-synthesized CdS NWs through a simple deposition process. The ethanol sensing properties of CdS NWs and Au-nanoparticle decorated CdS NWs with different Au content were investigated. The results showed that Au nanoparticle-decorated CdS NWs could enhance the response of CdS NWs to ethanol. Especially, the Au–CdS NWs with a proper Au decorating content showed the highest response to 100 ppm ethanol (about 110) which was 5 times higher than that of the CdS NWs as well as fast response/recovery speed (less than 15 s and 5 s, respectively) and excellent selectivity. In addition, the mechanism of CdS NWs and Au nanoparticle-decorated CdS NWs were discussed.
机译：通过溶剂质方法合成平均直径为30nm的Cds纳米线（NWS），然后通过简单的沉积方法在AS合成的CDS NW的表面上装饰尺寸为10-25nm的Au纳米颗粒。研究了CDS NWS和Au-an粒子颗粒的乙醇感测性能，具有不同Au含量的Cds NWS。结果表明，Au纳米颗粒装饰的Cdsnws可以增强Cds NWS对乙醇的响应。特别是，具有适当的Au装饰内容的Au-CdsNWS显示出100ppm乙醇（约110）的最高响应，其比CDS NWS的5倍高，以及快速响应/恢复速度（小于15秒） 5 s，分别为优异的选择性。此外，讨论了CDS NWS和Au纳米粒子装饰CDS NWS的机制。

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