%0 Journal Article
%T SnO<sub>2</sub>@碳纳米角复合物基NO<sub>2</sub>气体传感器的研究<br>SnO<sub>2</sub>@Carbon Nanohorns Nanocomposite Based Gas Sensor
%A 万梦宇
%A 马欣瑶
%A 郭馨茹
%A 曹豫阳
%J Applied Physics
%P 395-402
%@ 2160-7575
%D 2022
%I Hans Publishing
%R 10.12677/APP.2022.127046
%X 本文提出了一种简便、新颖的SnO<sub>2</sub>碳纳米复合材料的结构设计。2~3 nm的SnO<sub>2</sub>纳米颗粒均匀地分布在碳纳米角的表面。由于纳米复合材料的比表面积大，可以为NO<sub>2</sub>的检测提供足够的活性位点。SnO<sub>2</sub>纳米颗粒与碳框架之间的密切导电接触不仅为电子转移提供了途径，而且抑制了SnO<sub>2</sub>在结晶过程中的生长和团聚。所制备的SnO<sub>2</sub>复合碳纳米角纳米结构材料表现出较好的气体传感性能。值得注意的是，在室温下SnO<sub>2</sub>@CNHs纳米复合材料对NO<sub>2</sub>的快速检测比相应的SnO<sub>2</sub>要高。本文也深入地讨论了气敏传感机制。为开发高效新型气体传感材料提供思路。<br />
A facile and novel architecture design of SnO<sub>2</sub> impregnated carbon nanohorns nanocomposite (SnO<sub>2</sub>@CNHs) is presented. SnO<sub>2</sub> nanoparticles (2~3 nm) are homogeneously distributed on the surface of spherical CNHs. Due to the large specific surface area, CNHs in the nanocomposite can provide enough active sites for the detection of NO<sub>2</sub>. The intimate conductive contact between the SnO<sub>2</sub> nanoparticles and the carbon framework not only provides a pathway for electron transfer but also suppresses the growth and agglomeration of SnO<sub>2</sub> during the crystallization process. As expected, the nanostructured materials exhibit preferable gas sensing properties. Remarkably, the confined SnO<sub>2</sub>@CNHs nanocomposite shows rapid detection of NO<sub>2</sub> at room temperature (RT) than that of the corresponding SnO<sub>2</sub>.
%K 氧化锡，碳纳米角复合物，NO<sub>2</sub>气体传感特性，室温<br>SnO<sub>2</sub>
%K Carbon Nanohorns Nanocomposite
%K NO<sub>2</sub> Gas Sensing Properties
%K Room Temperature
%U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=53394