化工新型材料

化工新型材料 ›› 2018, Vol. 46 ›› Issue (1) : 233-236.

开发与应用

Ce掺杂NiO纳米材料的制备及其气敏性能研究

^1,3

作者信息 +

Preparation and gas sensing property of Ce-doped NiO nanomaterial

Zhang Min¹, Li Xiaodan², Mao Yongqiang^1,3, Li Na³

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文章历史 +

Received
2016-09-22
Issue Date	Revised Date
2018-03-01	2016-09-22

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摘要

以硫酸镍、硝酸铈和氢氧化钠为原料,聚乙烯吡咯烷酮(PVP)为表面活性剂,先通过化学沉淀反应,再经过高温煅烧得到Ce掺杂NiO纳米材料,并利用X射线衍射仪(XRD)和透射电子显微镜(TEM)对所得材料进行表征与分析。将所得Ce掺杂NiO纳米材料制成气敏元件,测试其对乙醇气体的敏感性能。结果表明:当Ce掺杂量为3%(质量分数)时,NiO纳米材料对乙醇气体具有较好的气敏响应性能;在工作温度为300℃时,该Ce掺杂NiO纳米材料对5×10^-6乙醇的灵敏度可达到2.20,响应时间小于20s。

Abstract

Using NiSO₄·6H₂O,Ce(NO₃)₃·6H₂O and NaOH as primary materials and PVP as a surfactant,Ce-doped NiO nanomaterial was successfully synthesized through chemical deposition reaction combined with subsequent calcination process.The structure and morphology of as-synthesized samples were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM).To demonstrate the usage of Ce-doped NiO nanomaterial,gas sensor was fabricated and investigated for ethanol detection.The results showed that 3% Ce-doped NiO nanomaterials exhibited good gas sensing properties to ethanol.When the sensor based on 3% Ce-doped NiO nanomaterials was exposed to 5×10^-6 ethanol,the sensitivity can reach to 2.20 at 250℃,and the response time was less than 20s.

关键词

化学沉淀法 / Ce掺杂NiO / 乙醇 / 气敏性能

Key words

chemical deposition reaction / Ce-doped NiO / ethanol / gas sensing property

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Ce掺杂NiO纳米材料的制备及其气敏性能研究[J]. 化工新型材料, 2018, 46(1): 233-236 DOI:

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