Facile synthesis and ppb-level H2S sensing performance of hierarchical CuO microflowers assembled with nano-spindles
Facile synthesis and ppb-level H2S sensing performance of hierarchical CuO microflowers assembled with nano-spindles
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纳米纺锤体组装的分级 CuO 微花的简便合成和 ppb 级 H2S 传感性能
DOI：
10.1007/s10854-020-03332-8
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发表时间：
2020-04
期刊：
影响因子：
--
通讯作者：
Chao Zhang
中科院分区：
文献类型：
--
作者：
Kai-Di Wu;Chao Zhang
采用水热法制备了CuO微花，并进行了高温处理。表征结果表明，所制备的CuO微花是由纳米纺锤体长为~ 800 nm组装而成，直径为2.0~2.5μm，基于气敏元件的CuO微花在25℃下对H_2S表现出良好的响应，在10-S电压脉冲作用下恢复较快。在室温下，氧化铜传感器对硫化氢的响应(S=Rg/Ra)为9.92ppm/1ppm，甚至可以检测到50ppb的硫化氢(S= 1.42)。此外，该气敏元件具有良好的选择性和重复性。提出并讨论了CuO微球对H_2S的敏感机理。这表明所制备的CuO微花在检测极低浓度的硫化氢方面具有潜在的应用前景。
CuO microflowers were successfully synthesized via a hydrothermal route followed with a high-temperature treatment. The characterized results showed that CuO microflowers assembled with nano-spindles (length: ~ 800 nm) were obtained and the diameter of microflowers were 2.0–2.5 μm. The gas sensor based CuO microflowers showed a fine response to H2S at 25 °C and a fast recovery after a 10-s voltage pulse. The response (S=Rg/Ra) of CuO sensor was 9.92 to 1 ppm H2S at room temperature, and it even could detect 50 ppb H2S (S= 1.42). Furthermore, the gas sensor demonstrated excellent selectivity and repeatability. The sensing mechanism of CuO microspheres to H2S was also proposed and discussed. This work indicates that the prepared CuO microflowers have potential application in detecting extreme low-concentration H2S.
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DOI：
10.1007/s10854-018-9758-9
发表时间：
2018-08
期刊：
Journal of Materials Science: Materials in Electronics
影响因子：
--
作者：
Zhenfa Wang;Fei Li;Haotian Wang;An Wang;Shumao Wu
通讯作者：
Zhenfa Wang;Fei Li;Haotian Wang;An Wang;Shumao Wu
影响因子：
1.6
作者：
X. Zhi;Haifeng Wang;Baijun Liu;Xiaoping Song;Zhanyuan Li;Jia Li
通讯作者：
X. Zhi;Haifeng Wang;Baijun Liu;Xiaoping Song;Zhanyuan Li;Jia Li
影响因子：
8.4
作者：
Kim, Jae-Hun;Mirzaei, Ali;Kim, Sang Sub
通讯作者：
Kim, Sang Sub
影响因子：
4.6
作者：
Do Dang Trung;Nguyen Duc Cuong;Nguyen Van Hieu
通讯作者：
Nguyen Van Hieu
CuFe2O4纳米粒子修饰的CuO微球异质结构用于高灵敏H2S气体传感器
影响因子：
8.4
作者：
Hu, Xiaobing;Zhu, Zhigang;Zheng, Liaoying
通讯作者：
Zheng, Liaoying