One-step solvothermal synthesis of Zn2SnO4/rGO composite material and highly gas sensing performance to acetone

IF 3.4 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Solid State Sciences Pub Date : 2024-07-26 DOI:10.1016/j.solidstatesciences.2024.107638

Fang He , Qimeng Du , Yulong Zhang , Wenxin Gao , Hang Chen , Chunxu Wang , Dekuan Liu , Yaomin Zhao , Tiebing Cui , Qi Qin

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Abstract

In this study, one-step solvothermal method was employed to synthesize Zn₂SnO₄ and Zn₂SnO₄/rGO composites. Zn₂SnO₄ was bonded to the rGO surface or in the spaces between the lamellar layers to create a semiconductor composite material that is physically supported by heterojunction. Compared to Zn₂SnO₄ sensor, the Zn₂SnO₄/rGO sensing material exhibits superior gas-sensing properties to acetone. The optimal temperature of Zn₂SnO₄/rGO sensor was just 200 °C, while its sensitivity to 100 ppm acetone gas was up to 11.2. Its response and recovery times were only 8 s and 11 s, respectively. The large specific surface area and distinctive heterojunction of the composite material are responsible for the enhanced gas-sensing performance of Zn₂SnO₄/rGO sensing material. Zn₂SnO₄/rGO is an ideal sensing material due to high sensitivity, fast response/recovery properties, great selectivity, and stability.

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一步溶热合成 Zn2SnO4/rGO 复合材料及其对丙酮的高气体传感性能

本研究采用一步溶热法合成 ZnSnO 和 ZnSnO/rGO 复合材料。ZnSnO 被键合在 rGO 表面或薄片层之间的空隙中，形成了一种异质结物理支撑的半导体复合材料。与 ZnSnO 传感器相比，ZnSnO/rGO 传感材料对丙酮的气体传感性能更优越。ZnSnO/rGO 传感器的最佳温度仅为 200 ℃，而其对 100 ppm 丙酮气体的灵敏度高达 11.2。其响应时间和恢复时间分别仅为 8 秒和 11 秒。复合材料的大比表面积和独特的异质结是 ZnSnO/rGO 传感材料气体传感性能增强的原因。ZnSnO/rGO 具有高灵敏度、快速响应/恢复特性、高选择性和稳定性，是一种理想的传感材料。

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来源期刊

Solid State Sciences 化学-无机化学与核化学

CiteScore

6.60

自引率

2.90%

发文量

214

审稿时长

27 days

期刊介绍： Solid State Sciences is the journal for researchers from the broad solid state chemistry and physics community. It publishes key articles on all aspects of solid state synthesis, structure-property relationships, theory and functionalities, in relation with experiments. Key topics for stand-alone papers and special issues: -Novel ways of synthesis, inorganic functional materials, including porous and glassy materials, hybrid organic-inorganic compounds and nanomaterials -Physical properties, emphasizing but not limited to the electrical, magnetical and optical features -Materials related to information technology and energy and environmental sciences. The journal publishes feature articles from experts in the field upon invitation. Solid State Sciences - your gateway to energy-related materials.