Rationally Designed Dual-Mesoporous Transition Metal Oxides/Noble Metal Nanocomposites for Fabrication of Gas Sensors in Real-Time Detection of 3-Hydroxy-2- Butanone Biomarker

Ma Junhao; Li Yanyan; Li JichunYang XuanyuRen YuanAlghamdi Abdulaziz A.Song GuoxinYuan KaipingDeng Yonghui

首页> 外文期刊>Advanced functional materials >Rationally Designed Dual-Mesoporous Transition Metal Oxides/Noble Metal Nanocomposites for Fabrication of Gas Sensors in Real-Time Detection of 3-Hydroxy-2- Butanone Biomarker

【24h】

Rationally Designed Dual-Mesoporous Transition Metal Oxides/Noble Metal Nanocomposites for Fabrication of Gas Sensors in Real-Time Detection of 3-Hydroxy-2- Butanone Biomarker

机译：Rationally Designed Dual-Mesoporous Transition Metal Oxides/Noble Metal Nanocomposites for Fabrication of Gas Sensors in Real-Time Detection of 3-Hydroxy-2- Butanone Biomarker

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

Transition metal oxides/noble metal (TMOs/NM) nanocomposites are one kind of important material for semiconductor gas sensors. The controllable construction of a highly connected mesoporous structure and easily accessible active sites is essential for gas sensing performance but remains a great challenge. Herein, a soluble mercapto phenolic resin polymer mediated co-assembly approach is proposed for the construction of ordered dual mesoporous structure and the simultaneous loading of highly dispersed noble metal nanoparticles. The home-made soluble mercapto phenolic resin polymer enabled the co-assembly of transition metal precursors, noble metal precursors, and poly(ethylene oxide)-block-polystyrene (PEO-b-PS) micelles, resulting in a straightforward synthesis of ordered dual-mesoporous TMOs/NM nanocomposites (e.g., WO3/Au, TiO2/Au, NbOx/AuPd). As proof of the concept, the synthesized dual-mesoporous WO3/Au materials are applied for sensing of 3-hydroxy-2-butanone, a biomarker of food-borne pathogenic bacteria Listeria monocytogenes. The sensors exhibit high sensitivity (R-a/R-g = 18.8 to 2.5 ppm) and high selectivity based on their noble metal sensitization and superior mesopore connectivity for gas diffusion. Furthermore, the synthesized gas sensors are integrated into a wireless sensing module connected to a smartphone, providing a rapid and convenient real-time detection of 3-hydroxy-2-butanone.

著录项

来源
《Advanced functional materials》 |2022年第4期|2107439.1-2107439.13|共13页
作者
Ma Junhao; Li Yanyan; Li JichunYang XuanyuRen YuanAlghamdi Abdulaziz A.Song GuoxinYuan KaipingDeng Yonghui;
展开▼
作者单位

Fudan Univ, Dept Chem, Dept Gastroenterol & Hepatol,State Key Lab Mol En, Zhongshan Hosp,Shanghai Key Lab Mol Catalysis & I, Shanghai 200433, Peoples R China;

King Saud Univ, Dept Chem, Coll Sci, POB 2455, Riyadh 11451, Saudi Arabia;

Fudan Univ, Frontier Inst Chip & Syst, Shanghai 200433, Peoples R ChinaFudan Univ, Dept Chem, Dept Gastroenterol & Hepatol,State Key Lab Mol En, Zhongshan Hosp,Shanghai Key Lab Mol Catalysis & I, Shanghai 200433, Peoples R China|Chinese Acad Sci, State Key Lab Transducer Technol, Shanghai Inst Microsyst & Informat Technol, S;

展开▼
收录信息
原文格式 PDF
正文语种英语
中图分类
关键词
gas sensors; mesoporous materials; noble metal nanoparticles; semiconductor metal oxides;

Rationally Designed Dual-Mesoporous Transition Metal Oxides/Noble Metal Nanocomposites for Fabrication of Gas Sensors in Real-Time Detection of 3-Hydroxy-2- Butanone Biomarker

摘要

著录项

相关主题

期刊订阅