水热法合成单分散的SnO_(2)纳米颗粒及其气敏特性的研究  

Monodispersed SnO_(2) Nanoparticles with HydrothermalSynthesis and Gas Sensitivity

作　　者：管越 牟佳佳 李佳 高丽丽[1] GUAN Yue;MU Jiajia;LI Jia;GAO Lili(College of Science,Beihua University,Jilin 132013,China)

机构地区：[1]北华大学理学院,吉林吉林132013

出　　处：《北华大学学报（自然科学版）》2021年第2期165-168,共4页Journal of Beihua University（Natural Science）

基　　金：吉林省科技发展计划项目(20170520108JH);北华大学大学生创新训练项目(201910201032);北华大学博士科研启动基金.

摘　　要：以葡萄糖和SnCl_(4)·5H_(2)O溶液为前驱液,并加入不同量的磷酸(PA),在160℃水热24 h制备了单分散的SnO_(2)纳米颗粒,用扫描电子显微镜观察SnO_(2)纳米颗粒的表面形貌,表明最终产物的粒径小、比表面积大,并且是单分散的.研究了晶粒尺寸和比表面积对传感性能的影响,结果表明加入适量的磷酸(PA)可以提高气敏性和比表面积.Monodispersed SnO_(2) nanoparticals were prepared from glucose and SnCl_(4)·5H_(2)O solution with adding different amounts of phosphoric acid(PA)by a hydrothermal method at 160℃for 24 h,the surface morphology of SnO_(2) nanoparticals were characterized by scanning electronic microscopy.The results show that the final product has the small particle size,high surface area,and it is monodispersed.The effects of the grain size and surface area on sensing properties were also investigated.The gas sensitivity and surface area could be improved through adding proper amount of phosphoric acid.

关 键 词：单分散的SnO_(2)纳米颗粒 粒子尺寸 磷酸(PA) 

分 类 号：O469[理学—凝聚态物理]