化工新型材料

化工新型材料 ›› 2026, Vol. 54 ›› Issue (10) : 142-150. DOI: 10.19817/j.cnki.issn1006-3536.2026.10.026

新材料与新技术

WSe₂/Ti₃C₂MXene复合材料室温NO₂气体传感器制备及性能研究

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Preparation and performance study of WSe₂/Ti₃C₂ MXene composite material for room temperature NO₂ gas sensor

Du Yifan¹, Yan Yufei², Zhang Wenlei¹, Yuan Zhongyun¹, Sun Lei¹

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Received
2025-11-13
Issue Date	Revised Date
2026-10-13	2025-11-13

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摘要

基于六方片状WSe₂和多层Ti₃C₂ MXene复合材料,构建一种创新的室温NO₂气体传感器WSe₂/Ti₃C₂ MXene。研究结果显示,该传感器在检测0.1×10^-6到50×10^-6浓度的NO₂时,展现出卓越的响应能力,明显优于单一的WSe₂传感器。特别是优化后的WSe₂/MXene-4传感器,在50×10^-6 NO₂的环境状态下,响应度高达6.07,是纯WSe₂传感器的3.5倍,同时将检测限从500×10^-9大幅降低到100×10^-9。此外,该传感器在重复使用和长期稳定性方面均表现良好。理论分析表明,WSe₂/Ti₃C₂ MXene复合材料对NO₂气敏机理主要归因于WSe₂和Ti₃C₂ MXene之间显著的异质结界面效应和协同吸附作用的增强。这项工作突显了WSe₂/Ti₃C₂ MXene异质结构传感器对NO₂气体可靠检测方面的巨大潜力,为未来室温传感器的研究提供了宝贵的参考,同时也推动了气敏传感器技术的进一步发展。

Abstract

An innovative room-temperature NO₂ gas sensor based on hexagonal flake-like WSe₂ and multilayer Ti₃C₂ MXene composites (WSe₂/Ti₃C₂ MXene) was constructed.The research results indicated that the WSe₂/Ti₃C₂ MXene sensor exhibited exceptional response capabilities when detecting NO₂ at concentrations ranging from 0.1×10^-6 to 50×10^-6,significantly outperforming the pristine WSe₂ sensor.Notably,the optimized WSe₂/MXene-4 sensor achieved a high response of 6.07 toward 50×10^-6 NO₂,which was 3.5 times that of the pure WSe₂ sensor.Concurrently,the limit of detection (LOD) was substantially reduced from 500×10^-9 to 100×10^-9.Furthermore,the sensor demonstrated excellent repeatability and long-term stability.Theoretical analysis revealed that the NO₂ sensing mechanism of the WSe₂/Ti₃C₂ MXene composite was primarily attributed to the pronounced heterojunction interface effect and the enhanced synergistic adsorption between WSe₂ and Ti₃C₂ MXene.This work highlighted the immense potential of WSe₂/Ti₃C₂ MXene heterostructure sensors for the reliable detection of NO₂ gas,providing a valuable reference for future research on room-temperature sensors and promoting further advancements in gas sensing technology.

关键词

Ti₃C₂ MXene / WSe₂ / NO₂室温传感器 / 气敏性能

Key words

Ti₃C₂ MXene / WSe₂ / room-temperature NO₂ sensor / gas sensing performance

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WSe₂/Ti₃C₂MXene复合材料室温NO₂气体传感器制备及性能研究[J]. 化工新型材料, 2026, 54(10): 142-150 DOI:10.19817/j.cnki.issn1006-3536.2026.10.026

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参考文献

原文顺序 | 出版日期 | 本文引用

[1] Yang Z J,Jiang L,Wang J,et al.Flexible resistive NO₂ gas sensor of three-dimensional crumpled MXene Ti₃C₂T_x/ZnO spheres for room temperature applicationn[J].Sensors and Actuators B-Chemical,2020,326:128828.
[2] Wu J,Wu Z,Ding H,et al.Flexible,3D SnS₂/reduced graphene oxide heterostructured NO₂ sensor[J].Sensors and Actuators B Chemical,2020,305:127445.
[3] Wang G,Zhou X,Qin J,et al.General synthesis of mixed semiconducting metal oxide hollow spheres with tunable compositions for low-temperature chemiresistive sensing[J].ACS Applied Materials & Interfaces,2019,11(38):35060-35067.
[4] Yu X,Chen X,Ding X,et al.Room temperature ethanol sensor based on ZnO nanoparticles modified by WSe₂ nanosheets[J].Sensors and Actuators B:Chemical,2023,382:133530.
[5] Aftab S,Iqbal M Z,Hussain S,et al.New developments in gas sensing using various two-dimensional architectural designs[J].Chemical Engineering Journal,2023,469:143829.
[6] Hu Y,Hu K,Zhang J,et al.WSe₂ modified monocrystalline SnSe₂ nanosheets for hydrogen gas detection and its sensing mechanism[J].International journal of hydrogen energy,2024,78:731-740.
[7] Kyung,Yong,Park,et al.Recovery improvement for large-area tungsten diselenide gas sensors[J].ACS Applied Materials & Interfaces,2018,10(28):23910-23917.
[8] Guo R,Han Y,Su C,et al.Ultrasensitive room temperature NO₂ sensors based on liquid phase exfoliated WSe₂ nanosheets[J].Sensors and Actuators,2019,300:127013.
[9] Sharma A,Varshney U,Yadav A,et al.Fabrication of ultra-sensitive NO sensor based on vacuum selenized WSe₂ nanorods[J].Materials Chemistry and Physics,2023,296:127241.
[10] Goel N,Kumar R,Jain S K,et al.A high-performance hydrogen sensor based on a reverse-biased MoS₂/GaN heterojunction[J].Nanotechnology,2019(31):30.
[11] Zhang D,Mi Q,Wang D,et al.MXene/C₃O₄ composite based formaldehyde sensor driven by ZnO/MXene nanowire arrays piezoelectric nanogenerator[J].Sensors and Actuators B Chemical,2021,339:129923.
[12] Nahirniak S,Saruhan B.MXene heterostructures as perspective materials for gas sensing applications[J].Sensors,2022,22(3):972.
[13] He T,Liu W,Lv T,et al.MXene/SnO₂ heterojunction based chemical gas sensors[J].Sensors and Actuators B Chemical,2021,329:129275.
[14] Liu S,Wang M,Ge C,et al.Enhanced room-temperature NO₂ sensing performance of SnO₂/Ti₃C₂ composite with double heterojunctions by controlling co-exposed {221} and {110} facets of SnO₂[J].Sensors and Actuators B:Chemical,2022,365:131919.
[15] Ta Q T H,Tri N N,Noh J S.Improved NO₂ gas sensing performance of 2D MoS₂/Ti₃C₂T_x MXene nanocomposite[J].Applied Surface Science,2022,604:154624.
[16] Wang T,Liu G,Zhang D,et al.Fabrication and properties of room temperature ammonia gas sensor based on SnO₂ modified WSe₂ nanosheets heterojunctions[J].Applied Surface Science,2022,597:153564.
[17] Liu M,Ji J,Song P,et al.α-Fe₂O₃ nanocubes/Ti₃C₂T_x MXene composites for improvement of acetone sensing performance at room temperature[J].Sensors and Actuators B:Chemical,2021,349:130782.
[18] Zhang D,Wang D,Pan W,et al.Construction and DFT study of Pd decorated WSe₂ nanosheets for highly sensitive CO detection at room temperature[J].Sensors and Actuators B:Chemical,2022,360:131634.
[19] Liu M,Sun R Y,Sima Z,et al.Au-decorated In₂O₃ nanospheres/exfoliated Ti₃C₂T_x MXene nanosheets for highly sensitive formaldehyde gas sensing at room temperature[J].Applied Surface Science,2022,605:154839.
[20] Zhang W,Wang W,Wang Y,et al.Au nanoparticles decorated flower-like SnS₂/Ti₃C₂ MXene microcomposite for high performance NO₂ sensing at room temperature[J].Applied Surface Science,2023,637:12.
[21] Xiao L,Shu S,Liu S T,et al.A facile synthesis of Pd-doped SnO₂ hollow microcubes with enhanced sensing performance[J].Sensors & Actuators B Chemical,2015,221:120-126.
[22] Guo L L,Wang Y Y,Feng Y J,et al.Small hollow ternary composite oxide semiconductor nanomaterials for conductometric HCHO sensors[J].Sensors and Actuators B-Chemical,2023,385:133703.
[23] A M M,B A D,C A S,et al.CO sensing properties of nanostructured WSe₂/GaN and MoSe₂/GaN based gas sensors[J].Physica B:Condensed Matter,2022,139:115147.
[24] Liu X,Zhang H,Shen T,et al.Flexible resistive NO₂ gas sensor of SnO₂@Ti₃C₂T_x MXene for room temperature application[J].Ceramics International,2024,50(1):2459-2466.
[25] Liu S,Wang M,Liu G,et al.Enhanced NO₂ gas-sensing performance of 2D Ti₃C₂/TiO₂ nanocomposites by in-situ formation of Schottky barrier[J].Applied Surface Science,2021,567:150747.
[26] Sharma A,Varshney U,Yadav A,et al.Harnessing UV light for enhanced room temperature ultra-low NO sensing via WSe₂/GaN heterostructure[J].Applied Surface Science,2024,649:159103.