The Preparation of ZnGa2O4 Nano Crystals by Spray Coprecipitation and Its Gas Sensitive Characteristics

Sensors

Zheng Jiao¹  Gang Ye²  Feng Chen³  Mingqiang Li² 

[1] Hefei Institute of Intelligent Machines, Chinese Academy of Science, Hefei 230031, P.R. China;Department of Automation, University of Science and Technology of China, Hefei 230026, P.R. China Address

关键词: Coprecipitation;    Nano crystals;    Spray;    Gas sensitive.;   

DOI  :  10.3390/s20300071

来源: mdpi

【 摘 要 】

ZnGa₂O₄ nano crystals were prepared by an improved coprecipitation method, which we call ‘spray coprecipitation’. XRD results shows the resulting crystal size using the new method is under 10nm, whereas the powder prepared by ordinary coprecipitation is about 30nm. XRD results also shows ZnO peaks exists in ZnGa₂O₄ powder prepared by traditional coprecipitation, but disappears in ZnGa₂O₄ nano crystal prepared by spraying coprecipitation. SEM and TEM were used to analysis the structural characteristics of ZnGa₂O₄ nano crystals. The gas sensitive characteristics of ZnGa₂O₄ nano crystals are reported.

【 授权许可】

Unknown   
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