Engineering a surface functionalized Pt@SnS2/Ti3C2Tx MXene sensor with humidity tolerance and high sensitivity at room temperature for NH3 detection

IF 10.7 2区 材料科学 Q1 CHEMISTRY, PHYSICAL Journal of Materials Chemistry A Pub Date : 2024-12-18 DOI:10.1039/d4ta07108e
Kugalur Shanmugam Ranjith, Sonam Sonwal, Ali Mohammadi, Ganji Seeta Rama Raju, Yun Suk Huh, Young-Kyu Han
{"title":"Engineering a surface functionalized Pt@SnS2/Ti3C2Tx MXene sensor with humidity tolerance and high sensitivity at room temperature for NH3 detection","authors":"Kugalur Shanmugam Ranjith, Sonam Sonwal, Ali Mohammadi, Ganji Seeta Rama Raju, Yun Suk Huh, Young-Kyu Han","doi":"10.1039/d4ta07108e","DOIUrl":null,"url":null,"abstract":"The design of hierarchical heterostructures that can detect volatile organic compounds (VOCs) at room temperature with good selectivity, sensitivity, and humidity tolerance is an intriguing and practically useful area of research. In this study, Pt@SnS<small><sub>2</sub></small>/MXene with a 0D@2D/2D hybrid structure was successfully fabricated by selectively etching Ti<small><sub>3</sub></small>C<small><sub>2</sub></small>T<small><sub><em>x</em></sub></small> MXene with HF and following this with SnS<small><sub>2</sub></small> solvothermal growth and finally decorating with Pt nanoparticles. Decoration of few layered vertically grown SnS<small><sub>2</sub></small> nanoflakes with rich active sites provided an electron reservoir that promoted the selectivity, conductivity, and stability of the MXene-based ternary heterostructure during sensing applications. Post-functionalization with trimethoxypropylsilane (TES) formed a monolayer on the ternary heterostructure of Pt@SnS<small><sub>2</sub></small>/MXene by self-assembly, improved moisture resistance and sensitivity, and maximized sensor durability. Interfacial contact of the TES functionalized mixed metal interface facilitated charge transport and the spectral separation required for NH<small><sub>3</sub></small> sensing at room temperature (<em>R</em><small><sub>a</sub></small>/<em>R</em><small><sub>g</sub></small> = 22.7, 10 ppm NH<small><sub>3</sub></small>), which was 14.2, 12.6, 8.1, and 3.3-fold greater higher than those of MXene, SnS<small><sub>2</sub></small>, SnS<small><sub>2</sub></small>/MXene, and Pt@SnS/MXene, respectively. The functionalized heterostructure exhibited high response, remarkable relative response (98.7%), a low theoretical detection limit (23 ppb), and long-term stability (nearly 30 days). Furthermore, TES functionalization protected the sensor from humidity and the sensor sensitivity was ascribed to a Schottky barrier and p–n junction at the Pt@SnS<small><sub>2</sub></small>/MXene heterostructure interface. Superior sensing responses were retained at various humidity levels due to the hydrophobicity of TES alkyl chains. In addition, TES captured free electrons on the sensing surface, and thus, maximized the width of the electron depletion layer. The functionalized Pt@SnS<small><sub>2</sub></small>/MXene heterostructure-based template offers a potential means of constructing highly sensitive and durable gas sensors suitable for practical NH<small><sub>3</sub></small> responsive, flexible wearable electronics.","PeriodicalId":82,"journal":{"name":"Journal of Materials Chemistry A","volume":"41 1","pages":""},"PeriodicalIF":10.7000,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Chemistry A","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1039/d4ta07108e","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0

Abstract

The design of hierarchical heterostructures that can detect volatile organic compounds (VOCs) at room temperature with good selectivity, sensitivity, and humidity tolerance is an intriguing and practically useful area of research. In this study, Pt@SnS2/MXene with a 0D@2D/2D hybrid structure was successfully fabricated by selectively etching Ti3C2Tx MXene with HF and following this with SnS2 solvothermal growth and finally decorating with Pt nanoparticles. Decoration of few layered vertically grown SnS2 nanoflakes with rich active sites provided an electron reservoir that promoted the selectivity, conductivity, and stability of the MXene-based ternary heterostructure during sensing applications. Post-functionalization with trimethoxypropylsilane (TES) formed a monolayer on the ternary heterostructure of Pt@SnS2/MXene by self-assembly, improved moisture resistance and sensitivity, and maximized sensor durability. Interfacial contact of the TES functionalized mixed metal interface facilitated charge transport and the spectral separation required for NH3 sensing at room temperature (Ra/Rg = 22.7, 10 ppm NH3), which was 14.2, 12.6, 8.1, and 3.3-fold greater higher than those of MXene, SnS2, SnS2/MXene, and Pt@SnS/MXene, respectively. The functionalized heterostructure exhibited high response, remarkable relative response (98.7%), a low theoretical detection limit (23 ppb), and long-term stability (nearly 30 days). Furthermore, TES functionalization protected the sensor from humidity and the sensor sensitivity was ascribed to a Schottky barrier and p–n junction at the Pt@SnS2/MXene heterostructure interface. Superior sensing responses were retained at various humidity levels due to the hydrophobicity of TES alkyl chains. In addition, TES captured free electrons on the sensing surface, and thus, maximized the width of the electron depletion layer. The functionalized Pt@SnS2/MXene heterostructure-based template offers a potential means of constructing highly sensitive and durable gas sensors suitable for practical NH3 responsive, flexible wearable electronics.

Abstract Image

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
用于检测 NH3 的表面功能化 Pt@SnS2/Ti3C2Tx MXene 传感器,具有耐湿性和室温下的高灵敏度
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
Journal of Materials Chemistry A
Journal of Materials Chemistry A CHEMISTRY, PHYSICAL-ENERGY & FUELS
CiteScore
19.50
自引率
5.00%
发文量
1892
审稿时长
1.5 months
期刊介绍: The Journal of Materials Chemistry A, B & C covers a wide range of high-quality studies in the field of materials chemistry, with each section focusing on specific applications of the materials studied. Journal of Materials Chemistry A emphasizes applications in energy and sustainability, including topics such as artificial photosynthesis, batteries, and fuel cells. Journal of Materials Chemistry B focuses on applications in biology and medicine, while Journal of Materials Chemistry C covers applications in optical, magnetic, and electronic devices. Example topic areas within the scope of Journal of Materials Chemistry A include catalysis, green/sustainable materials, sensors, and water treatment, among others.
期刊最新文献
Safe and stable Zn-lignin batteries with a biopolymer based hydrogel electrolyte Engineering a surface functionalized Pt@SnS2/Ti3C2Tx MXene sensor with humidity tolerance and high sensitivity at room temperature for NH3 detection Quantification of mobile charge carrier yield and transport lengths in ultrathin film light-trapping ZnFe2O4 photoanodes High-Pressure Enabled High-Entropy (CrFeCoNiMn)4S5 Composite Anode for Enhanced Durability and High-Rate Sodium-Ion Batteries Enabling Rational Electrolyte Design for Lithium Batteries through Precise Descriptors: Progress and Future Perspectives
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1