溶解热解前驱体的处理对SnO2气敏性质的影响

Instrument Technique and Sensor(2011)

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Abstract
为了探讨金属锡与柠檬酸溶解热解反应所得前驱体的不同处理方法对SnO2气敏性质的影响,文中利用锡粒与柠檬酸在175℃下反应制备出的前驱体,用不同方法处理后进行煅烧,得到SnO2及SnO掺杂的SnO2微纳米材料,所得的产物分别用XRD及SEM表征并对其气敏性质进行详细探讨.结果表明:前驱体经过洗涤后煅烧所得的产物为SnO掺杂的SnO2材料,未经洗涤的前驱体煅烧所得的是SnO2材料,SnO2对H2S、汽油、Cl2、乙醇和HCHO的气敏性质比SnO掺杂的SnO2好.
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Key words
tin dioxide,SnO-doping SnO2,precursor,gas sensing property
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