ZnO nanorods/Graphene/CNT nanocomposite gas sensors for enhanced VOC gas response and selectivity: Selective analysis of formaldehyde and ethanol

IF 4.6 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science and Engineering: B Pub Date : 2025-09-15 DOI:10.1016/j.mseb.2025.118783

Anthony Fon Tangoh , Jaebum Park , Noel Ngando Same , Abdulfatai Olatunji Yakub , Deepak Chaulagain , Jong Wook Roh , Dongjun Suh , Jeong Ok Lim , Jeung Soo Huh

引用次数: 0

Abstract

In this study, a ZnO nanorods/Graphene/Carbon nanotube (CNT) sensor was fabricated by synthesizing ZnO nanorods through the ultrasonic chemical method, followed by spin-coating with a graphene/CNT composite. Sensors (C1–C3) using ZnO nanorods/Graphene/CNT nanocomposites were prepared with graphene to CNT coating ratios of 9:1, 8:2, and 7:3, respectively, and their response were analyzed. The amount of material deposited during spin-coating more notably influenced the synergic effect of graphene/CNT and ZnO nanorods in sample C1. Sample C1 exhibited a response of 80 for 20 ppm formaldehyde at an operating temperature of 250 °C and displayed selectivity compared with ethanol. Overall, C1 exhibited the strongest reactivity and selectivity toward formaldehyde at 20 ppm.

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ZnO纳米棒/石墨烯/CNT纳米复合气体传感器用于增强VOC气体响应和选择性：甲醛和乙醇的选择性分析

本研究采用超声化学法合成ZnO纳米棒，然后用石墨烯/碳纳米管复合材料自旋涂覆，制备了ZnO纳米棒/石墨烯/碳纳米管（CNT）传感器。在石墨烯与碳纳米管涂层比例分别为9:1、8:2和7:3的情况下，制备了ZnO纳米棒/石墨烯/碳纳米管复合材料的传感器（C1-C3），并对其响应进行了分析。自旋镀膜过程中沉积的材料量对样品C1中石墨烯/碳纳米管和ZnO纳米棒的协同效应影响更为显著。样品C1在250°C的工作温度下对20 ppm甲醛的响应为80，与乙醇相比具有选择性。总的来说，C1在20 ppm时对甲醛表现出最强的反应性和选择性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Materials Science and Engineering: B 工程技术-材料科学：综合

CiteScore

5.60

自引率

2.80%

发文量

481

审稿时长

3.5 months

期刊介绍： The journal provides an international medium for the publication of theoretical and experimental studies and reviews related to the electronic, electrochemical, ionic, magnetic, optical, and biosensing properties of solid state materials in bulk, thin film and particulate forms. Papers dealing with synthesis, processing, characterization, structure, physical properties and computational aspects of nano-crystalline, crystalline, amorphous and glassy forms of ceramics, semiconductors, layered insertion compounds, low-dimensional compounds and systems, fast-ion conductors, polymers and dielectrics are viewed as suitable for publication. Articles focused on nano-structured aspects of these advanced solid-state materials will also be considered suitable.