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Graphene‐Oriented Construction of 2D SnS for Methanol Gas‐Sensor Application
Physica Status Solidi (A) - Applications and Materials Science Pub Date : 2021-01-05 , DOI: 10.1002/pssa.202000642 Yuxiang Qin 1, 2, 3 , Jiewei Wang 1 , Yinan Bai 1
Physica Status Solidi (A) - Applications and Materials Science Pub Date : 2021-01-05 , DOI: 10.1002/pssa.202000642 Yuxiang Qin 1, 2, 3 , Jiewei Wang 1 , Yinan Bai 1
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Group‐IV monochalcogenides with unique 2D puckered honeycomb structure (MX, M = Ge, Sn/X = S, Se) have a great prospect in the gas‐sensor field. Herein, an exploratory study on 2D SnS is synthesized through a solvothermal method, is performed for promising methanol sensor. To break through the inhibition of the general agglomeration and poor conductivity of solvothermal synthesized SnS on gas‐sensing performance, a hybrid of SnS@rGO is designed and constructed based on poly(diallyl dimethyl ammonium chloride) (PDDA)‐assisted electrostatic self‐assembly. With directed growth of SnS on the PDDA‐modulated graphene oxide (GO), an expected architecture characterized by well‐dispersed loosely arranged SnS nanosheets attaching on the highly conductive rGO is achieved. The unique hybrid architecture and the conductivity modulation of rGO promotes sensing responses and dynamic characteristic of SnS‐based sensor toward methanol detection. The achieved SnS@rGO hybrid with less stacking architecture of SnS displays a ≈3.3‐fold enhancement in gas response to 15 ppm methanol in comparison to the flower‐like stacked SnS. The formation mechanism of SnS@rGO hybrid based on the oriented growth of SnS by PDDA‐modulated GO is clarified schematically and the response enhancement of the hybrid is demonstrated in terms of the unique architecture and the conductivity modulation.
中文翻译：
面向石墨烯的二维SnS用于甲醇气体传感器应用
具有独特2D皱褶蜂窝结构的Ⅳ族单硫族化物（MX，M = Ge，Sn / X = S，Se）在气体传感器领域具有广阔的前景。在本文中，通过溶剂热法对二维SnS进行了探索性研究，以开发有前景的甲醇传感器。为了突破溶剂热合成SnS的团聚和导电性差对气敏性能的抑制作用，基于聚二烯丙基二甲基氯化铵（PDDA）辅助静电自组装设计和构建了SnS @ rGO杂化物。 。通过在PDDA调制的氧化石墨烯（GO）上定向生长SnS，可以实现一种预期的结构，该结构的特征是将分散良好的散布的SnS纳米片分散在高导电性rGO上。独特的混合体系结构和rGO的电导率调制可促进基于SnS的传感器对甲醇检测的传感响应和动态特性。与花状堆叠式SnS相比，获得的SnS @ rGO混合动力系统具有较少的SnS堆叠结构，显示出对15 ppm甲醇的气体响应提高了约3.3倍。阐明了基于PDDA调制的GO对SnS定向生长的SnS @ rGO杂化体的形成机理，并通过独特的结构和电导率调制证明了杂化体的响应增强。与花状堆叠式SnS相比，对15 ppm甲醇的气体响应提高了3倍。阐明了基于PDDA调制的GO对SnS定向生长的SnS @ rGO杂化体的形成机理，并通过独特的结构和电导率调制证明了杂化体的响应增强。与花状堆叠式SnS相比，对15 ppm甲醇的气体响应提高了3倍。阐明了基于PDDA调制的GO对SnS定向生长的SnS @ rGO杂化体的形成机理，并通过独特的结构和电导率调制证明了杂化体的响应增强。
更新日期：2021-01-05
中文翻译：
面向石墨烯的二维SnS用于甲醇气体传感器应用
具有独特2D皱褶蜂窝结构的Ⅳ族单硫族化物（MX，M = Ge，Sn / X = S，Se）在气体传感器领域具有广阔的前景。在本文中，通过溶剂热法对二维SnS进行了探索性研究，以开发有前景的甲醇传感器。为了突破溶剂热合成SnS的团聚和导电性差对气敏性能的抑制作用，基于聚二烯丙基二甲基氯化铵（PDDA）辅助静电自组装设计和构建了SnS @ rGO杂化物。 。通过在PDDA调制的氧化石墨烯（GO）上定向生长SnS，可以实现一种预期的结构，该结构的特征是将分散良好的散布的SnS纳米片分散在高导电性rGO上。独特的混合体系结构和rGO的电导率调制可促进基于SnS的传感器对甲醇检测的传感响应和动态特性。与花状堆叠式SnS相比，获得的SnS @ rGO混合动力系统具有较少的SnS堆叠结构，显示出对15 ppm甲醇的气体响应提高了约3.3倍。阐明了基于PDDA调制的GO对SnS定向生长的SnS @ rGO杂化体的形成机理，并通过独特的结构和电导率调制证明了杂化体的响应增强。与花状堆叠式SnS相比，对15 ppm甲醇的气体响应提高了3倍。阐明了基于PDDA调制的GO对SnS定向生长的SnS @ rGO杂化体的形成机理，并通过独特的结构和电导率调制证明了杂化体的响应增强。与花状堆叠式SnS相比，对15 ppm甲醇的气体响应提高了3倍。阐明了基于PDDA调制的GO对SnS定向生长的SnS @ rGO杂化体的形成机理，并通过独特的结构和电导率调制证明了杂化体的响应增强。
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