基于分等级结构NiO/Zn<sub>2</sub>SnO<sub>4</sub>纳米花的乙醇传感器研究

引用本文: 李昕, 刘彩霞, 周敬然, 马艳, 阮圣平. 基于分等级结构NiO/Zn₂SnO₄纳米花的乙醇传感器研究[J]. 分析化学, 2022, 50(4): 564-573. doi: 10.19756/j.issn.0253-3820.210880 shu

Citation: LI Xin, LIU Cai-xia, ZHOU Jing-ran, MA Yan, RUAN Sheng-ping. Study on Ethanol Gas Sensor Based on Hierarchical Structured NiO/Zn₂SnO₄ Nanoflowers[J]. Chinese Journal of Analytical Chemistry, 2022, 50(4): 564-573. doi: 10.19756/j.issn.0253-3820.210880 shu

基于分等级结构NiO/Zn₂SnO₄纳米花的乙醇传感器研究

吉林大学电子科学与工程学院, 集成光电子学国家重点实验室吉林大学实验区, 长春 130012

通讯作者: 马艳,E-mail:ma_yan@jlu.edu.cn; 阮圣平,E-mail:ruansp@jlu.edu.cn

基金项目:
吉林省科技发展计划项目(No.20200201267JC)资助

国家自然科学基金项目(Nos.12073009,61874048,61974055,U21B2061)

摘要: 采用水热合成结合溶液浸渍的方法制备了具有分等级结构的NiO/Zn₂SnO₄纳米花复合材料。以NiO/Zn₂SnO₄为敏感材料,采用旁热式气敏元件结构,制作了气体传感器。利用X射线粉末衍射仪、扫描电子显微镜、高分辨透射电子显微镜和X-射线光电子能谱仪等对样品的组分构成及微观形貌进行表征,结果表明,所制备的Zn₂SnO₄呈现出由纳米片构成的纳米花分等级结构,NiO在不破坏Zn₂SnO₄基体形貌的基础上通过溶液浸渍法以纳米粒子的形式成功修饰在纳米花表面。对Zn₂SnO₄和NiO/Zn₂SnO₄的气敏性能进行了系统测试,NiO/Zn₂SnO₄纳米花对乙醇展示出良好的气敏特性。乙醇浓度在1~100μL/L范围内,响应值与浓度之间呈良好的线性关系,线性相关性系数(R²)为0.9990。在230℃的工作温度下,对100μL/L乙醇的响应值为46.5,响应时间和恢复时间分别是3和16 s,并且展示出良好的选择性与稳定性。与Zn₂SnO₄相比,NiO/Zn₂SnO₄复合材料的敏感特性明显提升,Zn₂SnO₄与NiO之间的p-n异质结构以及NiO的催化协同作用是气敏特性提升的主要原因。此分等级结构Ni O/Zn₂SnO₄基传感器的构建为乙醇的高灵敏检测提供了参考。

关键词:

English

Study on Ethanol Gas Sensor Based on Hierarchical Structured NiO/Zn₂SnO₄ Nanoflowers

State Key Laboratory on Integrated Optoelectronics, College of Electronic Science & Engineering, Jilin University, Changchun 130012, China

Corresponding author: MA Yan, ; RUAN Sheng-ping,

Received Date: 26 November 2021
Revised Date: 24 February 2022
Fund Project:
the Project of Science and Technology Plan of Jilin Province,China(No. 20200201267JC)

Supported by the National Natural Science Foundation of China(Nos. 12073009, 61874048, 61974055, U21B2061)

Abstract: NiO/Zn₂SnO₄ hierarchical nanoflowers were successfully synthesized by hydrothermal method combined with subsequent solution impregnation process. Gas sensor with a side-heated gas sensor structure was fabricated by utilizing the obtained NiO/Zn₂SnO₄ as sensing material. Several characterization techniques such as X-ray diffraction(XRD) patterns, scanning electron microscopy(SEM), transmission electron microscope(TEM) and X-ray photoelectron spectroscopy(XPS) were employed to investigate the composition, morphology and microstructure of the samples. The results showed that the Zn₂SnO₄ synthesized via hydrothermal method took on a hierarchical nanoflower structure composed of nano-lamellae, and NiO was successfully decorated on the surface of the Zn₂SnO₄ nanoflowers as nanoparticles through solution impregnation. The gas sensing performances of pure Zn₂SnO₄ and NiO/Zn₂SnO₄ composites were investigated and the testing results revealed that the NiO/Zn₂SnO₄ composites exhibited excellent sensing performances to ethanol. The response presented a linear relationship with ethanol concentration in the range of 1-100 μL/L(R²=0.9990), the response to 100 μL/L ethanol reached 46.5 at 230℃, and the response and recovery time was 3 s and 16 s, respectively. Moreover, the NiO/Zn₂SnO₄-based sensor possessed great selectivity and stability. Compared with pure Zn₂SnO₄ nanoflowers, the sensing properties of NiO/Zn₂SnO₄ composites were improved dramatically, and the enhancement may ascribe to the p-n type heterojunctions formed between NiO and Zn₂SnO₄ as well as the catalysis synergetic effect of NiO. The research on the NiO/Zn₂SnO₄-based sensor provided a reference for highly sensitive detection of ethanol.

Key words:

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1.
沈阳化工大学材料科学与工程学院沈阳 110142

基于分等级结构NiO/Zn₂SnO₄纳米花的乙醇传感器研究

通讯作者: 马艳,E-mail:ma_yan@jlu.edu.cn; 阮圣平,E-mail:ruansp@jlu.edu.cn

English

Study on Ethanol Gas Sensor Based on Hierarchical Structured NiO/Zn₂SnO₄ Nanoflowers

Corresponding author: MA Yan, ; RUAN Sheng-ping,

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

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中国化学会秘书处

基于分等级结构NiO/Zn2SnO4纳米花的乙醇传感器研究

通讯作者: 马艳,E-mail:ma_yan@jlu.edu.cn; 阮圣平,E-mail:ruansp@jlu.edu.cn

English

Study on Ethanol Gas Sensor Based on Hierarchical Structured NiO/Zn2SnO4 Nanoflowers

Corresponding author: MA Yan, ; RUAN Sheng-ping,

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

基于分等级结构NiO/Zn₂SnO₄纳米花的乙醇传感器研究

Study on Ethanol Gas Sensor Based on Hierarchical Structured NiO/Zn₂SnO₄ Nanoflowers

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