High Response Gas Sensors for Formaldehyde Based on Er-doped In_2O_3 Nanotubes

查看全文 作　　者：Xuesong [1]Wang;Jinbao [1]Zhang;Lianyuan [1]Wang;Shouchun [1]Li;Li [1]Liu;Chang [1]Su;Lili [1]Liu

机构地区：[1]State Key Laboratory of Superhard Materials,College of Physics,Jilin University

出　　处：《Journal of Materials Science & Technology》索引2015年第31卷第12期,共6页

基　　金：supported by the Jilin Provincial Science and Technology Department (No.20140204027GX) 摘　　要：Pure and Er-doped In_2O_3 nanotubes were systematically fabricated by using a single nozzle eletrospinning method followed by calcination.The as-synthesized nanotubes were characterized by scanning electron microscopy(SEM),energy-dispersive X-ray(EDX) spectrometry and X-ray powder diffraction(XRD).Compared with pure In_2O_3 nanotubes,Er-doped In_2O_3 nanotubes exhibit improved formaldehyde sensing properties at 260 ℃.The response of Er-doped In_2O_3 nanotubes to 20 ppm formaldehyde is about 12,which is 4 times larger than that of pure In_2O_3 nanotubes.The response and recovery times of Er-doped In_2O_3 nanotubes to 20 ppm formaldehyde are about 5 and 38 s,respectively.Furthermore,the response of Er-doped In_2O_3 nanotubes to 100 ppb formaldehyde is 2.19. 关键词：纳米系统二甲醛气体传感器掺杂扫描电子显微镜 X射线粉末衍射反应 X射线能谱

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High Response Gas Sensors for Formaldehyde Based on Er-doped In_2O_3 Nanotubes

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