化工进展2018，Vol.37Issue(2)：651-657,7.DOI:10.16085/j.issn.1000-6613.2017-0907
ZnO负载SnO2复合材料的制备及其气敏性能
Preparation and sensing properties of ZnO supporting SnO2 nanocomposites
摘要
Abstract
SnO2/ZnO composites were synthesized by a facile hydrothermal method using SnCl4·5H2O and Zn(AC)2·2H2O as the raw material and NaOH as the precipitant,which makes SnO2nanoparticles adhere to the surface of silkworm chrysalis-like ZnO.The structure and morphology of the obtained materials were characterized by XRD,TEM,HRTEM and BET.And the effects of temperature,ethanol concentration and other factors on the sensitivity were inverstigated.The results confirmed that the composite materials were SnO2nanoparticles and silkworm chrysalis-like ZnO.The SnO2nanoparticles were distributed on the surface of ZnO.The SnO2/ZnO composite exhibited good gas-sensing properties,and the sensitivity of the sensor to 200μL/L ethanol was 39.68 at the optimum operating temperature (240℃),which were almost double of that of the individual SnO2(24.53)and ZnO sensor(17.8).关键词
二氧化锡/氧化锌/粒子/水热/复合材料/气敏性能/选择性Key words
SnO2/ZnO/particles/hydrothermal/composites/gas-sensing properties/selectivity分类
化学化工引用本文复制引用
魏莹,仪桂云,王晓冬,许亚威,周利星..ZnO负载SnO2复合材料的制备及其气敏性能[J].化工进展,2018,37(2):651-657,7.基金项目
国家自然科学基金(51404097,61474038,51404097)、河南省科技攻关项目(132102210251)及河南省高等学校重点科研项目计划(15A430027). （51404097,61474038,51404097）
