{"title":"Synthesis and characterization of ZnO hexagonal sheets wrapped MoS2 sphere for triethylamine gas sensing application","authors":"Weiwei Guo , Kewei Chen , Hejing Zhang","doi":"10.1016/j.ceramint.2024.10.002","DOIUrl":null,"url":null,"abstract":"<div><div>Triethylamine, a colourless gas with strong irritating odor, has great harm to the human body. We synthesize ZnO/MoS<sub>2</sub> (ZnO hexagonal sheets wrapped MoS<sub>2</sub> sphere structure) for detecting triethylamine. Structural characterizations indicate the largest BET surface area (51.568 m<sup>2</sup>/g) of ZnO/MoS<sub>2</sub> and the existence of ZnO-MoS<sub>2</sub> n-n heterojunction. The ZnO/MoS<sub>2</sub> exhibit better gas sensing performance than ZnO and MoS<sub>2</sub>, 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.</div></div>","PeriodicalId":267,"journal":{"name":"Ceramics International","volume":"50 23","pages":"Pages 50890-50905"},"PeriodicalIF":5.1000,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ceramics International","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0272884224044717","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
引用次数: 0
Abstract
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.
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.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
