Effect of Surfactant-Assisted Synthesis of ZnO Nanoparticles on Gas Sensitivity

IF 2.5 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of Electronic Materials Pub Date : 2025-09-19 DOI:10.1007/s11664-025-12398-1

Deepak Kumar, Akshay Kumar, Anil Kumar, Rajveer Singh, Meenakshi Gautam

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引用次数: 0

Abstract

To investigate the influence of nanoparticle size on sensor response, surfactants polyethylene glycol (PEG), and cetyltrimethylammonium bromide (CTAB) were used to facilitated the synthesis of ZnO nanostructures via a straightforward sol–gel technique. Structural properties were analyzed utilizing x-ray diffraction (XRD) analysis, scanning electron microscopy (SEM), energy-dispersive x-ray spectroscopy (EDX), and transmission electron microscopy (TEM). XRD analysis verified the establishment of wurtzite-structured ZnO. The surfactant significantly influenced the particle size management. Particles measuring, on average, 66 nm, 46 nm, and 37 nm were observed on TEM micrographs. Gas sensing experiments were conducted for various compounds, including acetone, ethanol, and ammonia, at a fixed concentration of 1000 ppm across various temperatures. Chemical sensing analysis indicated that the PEG-ZnO sensor exhibited a superior and selective response of 39.63% toward ethanol at a temperature of 250°C, in comparison with other sensors. The sensor responsiveness was significantly influenced by the particle size and form.

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表面活性剂辅助合成ZnO纳米颗粒对气敏性能的影响

为了研究纳米颗粒大小对传感器响应的影响，采用溶胶-凝胶技术，使用表面活性剂聚乙二醇（PEG）和十六烷基三甲基溴化铵（CTAB）促进ZnO纳米结构的合成。利用x射线衍射（XRD）分析、扫描电子显微镜（SEM）、能量色散x射线能谱（EDX）和透射电子显微镜（TEM）分析了结构性质。XRD分析证实了纤锌矿结构ZnO的建立。表面活性剂对粒径管理有显著影响。透射电镜观察到的颗粒平均尺寸为66 nm、46 nm和37 nm。在不同温度下，在固定浓度为1000ppm的条件下，对丙酮、乙醇和氨等多种化合物进行了气体传感实验。化学传感分析表明，与其他传感器相比，PEG-ZnO传感器在250℃温度下对乙醇的选择性响应为39.63%。传感器的响应性受颗粒大小和形状的显著影响。

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来源期刊

Journal of Electronic Materials 工程技术-材料科学：综合

CiteScore

4.10

自引率

4.80%

发文量

693

审稿时长

3.8 months

期刊介绍： The Journal of Electronic Materials (JEM) reports monthly on the science and technology of electronic materials, while examining new applications for semiconductors, magnetic alloys, dielectrics, nanoscale materials, and photonic materials. The journal welcomes articles on methods for preparing and evaluating the chemical, physical, electronic, and optical properties of these materials. Specific areas of interest are materials for state-of-the-art transistors, nanotechnology, electronic packaging, detectors, emitters, metallization, superconductivity, and energy applications. Review papers on current topics enable individuals in the field of electronics to keep abreast of activities in areas peripheral to their own. JEM also selects papers from conferences such as the Electronic Materials Conference, the U.S. Workshop on the Physics and Chemistry of II-VI Materials, and the International Conference on Thermoelectrics. It benefits both specialists and non-specialists in the electronic materials field. A journal of The Minerals, Metals & Materials Society.