基于镱掺杂二氧化锡纳米材料的制备及其气敏性能研究  

Preparation and Gas Sensing Properties of Ytterbium Doped Tin Dioxide Nano Materials

作　　者：刘文士 徐新淼 师琮舜 赵洁婷 Liu Wenshi;Xv Xinmiao;Shi Congshun;Zhao Jieting(Changchun Normal University School of Engineering,Changchun Jilin 130000)

机构地区：[1]长春师范大学工程学院,吉林长春130000

出　　处：《山西冶金》2022年第1期16-18,共3页Shanxi Metallurgy

基　　金：吉林省大学生创新创业项目(S202110205034)。

摘　　要：鉴于二氧化锡微纳米材料在气敏性能方面具有灵敏度高、响应快、生产费用低等优点,通过掺杂稀土元素来改良其气敏性能。将二氧化锡和镱元素通过共沉淀法进行掺杂,设定其物质的量比分别为99∶1、97∶3、95∶5,采用纯SnO_(2)和Yb-SnO_(2)纳米材料在不同浓度和温度条件下,分别对CO、H_(2)进行气敏性能测试。结果表明,在340℃时,掺杂镱元素摩尔比为5%时对CO、H_(2)的响应值最高,其中对H_(2)的响应值更高。Tin dioxide micro-nano materials have the advantages of high sensitivity,fast response,and low production cost in terms of gas sensitivity,and their gas sensitivity can be improved by doping with rare earth elements. Tin dioxide and ytterbium are doped by co-precipitation,and their molar ratios are 99:1,97:3,and 95:5,respectively.SnO_(2)and Yb-SnO_(2)micro/nano materials were used to test for the gas sensitivity of carbon monoxide and hydrogen under different concentration and temperature conditions,and it was found that at 340 ℃,the molar ratio of doped ytterbium element was 5% to carbon monoxide and hydrogen. The response value is the highest,and the response value to hydrogen is higher.

关 键 词：共沉淀法 气敏性能 Yb-SnO_(2) H_(2) CO 

分 类 号：TB383[一般工业技术—材料科学与工程]