用于三乙胺气体传感的氧化锌六角形片包裹 MoS2 球的合成与表征

IF 5.1 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International Pub Date : 2024-10-02 DOI:10.1016/j.ceramint.2024.10.002

Weiwei Guo , Kewei Chen , Hejing Zhang

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引用次数: 0

摘要

三乙胺是一种无色有强烈刺激性气味的气体，对人体有很大的危害。我们合成了用于检测三乙胺的 ZnO/MoS2（ZnO 六边形薄片包裹 MoS2 球体结构）。结构表征表明 ZnO/MoS2 的 BET 表面积最大（51.568 m2/g），并存在 ZnO-MoS2 n-n 异质结。与 ZnO 和 MoS2 相比，ZnO/MoS2 表现出更好的气体传感性能，即 14.5 的高响应、快速响应/恢复时间（14 秒/28 秒）、良好的稳定性、防潮性以及在 255 °C 下对 30 ppm 三乙胺的选择性。此外，还进行了紫外可见光、聚光、不间断电源和电化学研究，以揭示气体传感机理。

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Synthesis and characterization of ZnO hexagonal sheets wrapped MoS2 sphere for triethylamine gas sensing application

Triethylamine, a colourless gas with strong irritating odor, has great harm to the human body. We synthesize ZnO/MoS₂ (ZnO hexagonal sheets wrapped MoS₂ sphere structure) for detecting triethylamine. Structural characterizations indicate the largest BET surface area (51.568 m²/g) of ZnO/MoS₂ and the existence of ZnO-MoS₂ n-n heterojunction. The ZnO/MoS₂ exhibit better gas sensing performance than ZnO and MoS₂, that are, high response of 14.5, fast response/recovery times (14 s/28 s), good stability, humidity resistance, and selectivity for 30 ppm triethylamine at 255 °C. Besides, the Uv–vis, PL, UPS, and electrochemistry are conducted to reveal the gas sensing mechanism.

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来源期刊

Ceramics International 工程技术-材料科学：硅酸盐

CiteScore

9.40

自引率

15.40%

发文量

4558

审稿时长

25 days

期刊介绍： Ceramics International covers the science of advanced ceramic materials. The journal encourages contributions that demonstrate how an understanding of the basic chemical and physical phenomena may direct materials design and stimulate ideas for new or improved processing techniques, in order to obtain materials with desired structural features and properties. Ceramics International covers oxide and non-oxide ceramics, functional glasses, glass ceramics, amorphous inorganic non-metallic materials (and their combinations with metal and organic materials), in the form of particulates, dense or porous bodies, thin/thick films and laminated, graded and composite structures. Process related topics such as ceramic-ceramic joints or joining ceramics with dissimilar materials, as well as surface finishing and conditioning are also covered. Besides traditional processing techniques, manufacturing routes of interest include innovative procedures benefiting from externally applied stresses, electromagnetic fields and energetic beams, as well as top-down and self-assembly nanotechnology approaches. In addition, the journal welcomes submissions on bio-inspired and bio-enabled materials designs, experimentally validated multi scale modelling and simulation for materials design, and the use of the most advanced chemical and physical characterization techniques of structure, properties and behaviour. Technologically relevant low-dimensional systems are a particular focus of Ceramics International. These include 0, 1 and 2-D nanomaterials (also covering CNTs, graphene and related materials, and diamond-like carbons), their nanocomposites, as well as nano-hybrids and hierarchical multifunctional nanostructures that might integrate molecular, biological and electronic components.