氢取代石墨单炔/CeO_(2)纳米复合材料的制备及其高灵敏度NH 3室温检测  

Preparation of Hydrogen Substituted Graphyne/CeO_(2) Nanocomposite and Its Highly Sensitive Detection of NH 3 at Room Temperature

作　　者：张传涛 于灵敏[1] 南宁 范新会[1] ZHANG Chuantao;YU Lingmin;NAN Ning;FAN Xinhui(School of Materials and Chemical Engineering,Xi’an Technological University,Xi’an 710021,China)

机构地区：[1]西安工业大学材料与化工学院,西安710021

出　　处：《西安工业大学学报》2025年第1期11-18,共8页Journal of Xi’an Technological University

基　　金：国家自然科学基金(62171359)。

摘　　要：由于纯CeO_(2)纳米材料易团聚且导电性差,导致其气敏性能较差,为此,采用氢取代石墨单炔(HsGY)作为载体,通过炔键与CeO_(2)的相互作用,将CeO_(2)均匀分散在HsGY表面。实验结果表明,HsGY/CeO_(2)复合材料在室温下对60 ppm NH 3的响应值为8.1,是纯CeO_(2)的1.35倍,且响应与恢复时间分别为43 s和68 s。Pure CeO_(2) nanomaterials are prone to aggregation and poor in conductivity,resulting in poor gas sensing performance.In this study,hydrogen substituted graphyne(HsGY)was used as a carrier,and CeO_(2) was uniformly dispersed on the surface of HsGY through the interaction between alkyne bonds and CeO_(2).The experimental results show that the response value of HsGY/CeO_(2) nanocomposite to 60 ppm NH 3 at room temperature is 8.1,which is 1.35 times that of pure CeO_(2),and the response and recovery times are 43 s and 68 s,respectively.

关 键 词：HsGY/CeO_(2)纳米复合材料 NH 3 气体传感器 响应值 

分 类 号：TB3[一般工业技术—材料科学与工程]