水热纳米杆制备及屈曲性能分析  

Preparation and Buckling Analysis of Hydrothermal Nanorods

作　　者：席智强 肖云华 席智勇 白静 谢林君 Xi Zhiqiang;Xiao Yunhua;Xi Zhiyong;Bai Jing;Xie Linjun(Hunan Technical College of Railway High-Speed,Hengyang 421000,China;School of Electromechanical Engineering,Hunan Institute of Traffic Engineering,Hengyang 421001,China;Shenzhen Abrobo Medical Robot Co.,Ltd.,Shenzhen 518100,China)

机构地区：[1]湖南高速铁路职业技术学院,湖南衡阳421000 [2]湖南交通工程学院机电工程学院,湖南衡阳421001 [3]深圳市爱博医疗机器人有限公司,广东深圳518100

出　　处：《山东化工》2023年第17期42-44,共3页Shandong Chemical Industry

基　　金：湖南省教育厅科学研究项目(项目编号:20C0548);湖南省一流本科专业建设(教高厅函[2019]46号);第二批产学合作协同育人项目(教高司函[2019]12号项目编号:201802181004);普通高校创新创业教育中心和基地(湘教通[2019]333号项目编号:104)。

摘　　要：采用水热法,添加Zn(CH_(3)COO)_(2)制备出四类纳米棒晶体前驱体并对样品进行表征,XRD分析表明,合成后的晶体前驱体由非晶相组成。采用了NANO MEASURER分析计算四类样品的平均直径分别为220,280,300和370 nm,这证实了封端剂乙酸锌浓度对调控CeO_(2)合成纳米杆颗粒大小和性质是至关重要的。此外,采用有限元对不同尺度下的杆状微纳米氧化铈进行屈曲模拟,屈曲系数随着长度的增长呈依次递减,屈曲系数随着直径的增大呈依次递增。Four kinds of nanorod crystal precursors were prepared by hydrothermal method with different concentrations of Zn(CH_(3)COO)_(2),and the synthesized samples were characterized.XRD analysis showed that the synthesized crystal precursors were composed of amorphous phase.The average diameters of the four kinds of samples were 220,280,300 and 370 nm,respectively,which confirmed that the concentration of zinc acetate was very important to regulate the particle size and properties of CeO_(2)-synthesized nanorods.In addition,finite element method is used to simulate the buckling of rod-shaped micro-nano cerium oxide at different scales.The buckling coefficient decreases with the increase of length and increases with the increase of diameter.

关 键 词：低温水热 氧化铈 屈曲分析 

分 类 号：TQ133.3[化学工程—无机化工] TB383[一般工业技术—材料科学与工程]