Hammerhead Shark‐Inspired Microvillus‐Structured Ionic Elastomers for Wet Gas Sensing Based on Solvated Ion Transport DOI Open Access
Chunyan Li, Hongyang Liu,

Lingyun Xu

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 13, 2025

Abstract Water molecules are ubiquitous disruptors of conventional gas sensing materials, often leading to diminished performance in materials that reliant on electronic signal transmission. This creates the pressing need for efficient with anti‐humidity interference properties. Here, a hammerhead shark‐inspired microvillus‐structured ionic elastomer based transmission nanoconfined space is constructed by incorporating liquids into polymer matrix. The elastomers optimized microvillus structure demonstrated 1.68‐fold higher response than flat ones, short time (9 s) toward 30 ppm triethylamine (TEA), excellent selectivity and low limit detection (LOD) (104.56 ppb). Such serves as proof‐of‐concept effectively combining solvated ion transport design develop advanced systems. With such an evident (23.52%), similar (12 s), LOD (498.05 ppb), long‐term stability (at least days) achieved at relative humidity 70%. Mechanistic investigations revealed effective ions facilitated after sequential water TEA surroundings while significantly enhanced transport. Furthermore, utility system shrimp decay monitoring under wet conditions.

Language: Английский

Current Advances of CO Sensing Based on Low Dimensional Materials DOI

Yundi Zhang,

Jie Liu, Changru Rong

et al.

Langmuir, Journal Year: 2024, Volume and Issue: 40(36), P. 18821 - 18836

Published: Aug. 28, 2024

Carbon monoxide (CO) is a harmful gas with significant impacts on human health and the environment. Its timely detection, especially in event of thermal runaway automotive lithium batteries, crucial to prevent casualties. This paper reviews progress development efficient, sensitive, reliable CO sensors, focusing electrochemical, optical, resistive sensing materials. Low-dimensional materials have large specific surface area, providing an abundant number active sites, which has drawn extensive attention from researchers. According different sensor signals, we categorized these sensors into electrical optical signal sensors. We hope that by systematically introducing mechanism performance two kinds appropriate can be developed application scenarios so as realize early warning monitoring maximum extent, reduce industrial losses, ensure life personnel.

Language: Английский

Citations

5
Multiscale Covalent Organic Framework (COF) Films for Task-Specific Sensing in Multicomponent Gases DOI

Chengyue Yu,

Lingyun Xu,

Fanrong Zhao

et al.

ACS Materials Letters, Journal Year: 2024, Volume and Issue: unknown, P. 5454 - 5478

Published: Nov. 18, 2024

Gas sensing is vital for ecological protection in agriculture, early disease diagnosis biomedicine, and safety industrial production. Covalent organic frameworks (COFs), a new class of porous polymer materials, can be customized through specific ligand selection to tailor pore sizes active sites, enabling them selectively enrich interact with targeted gas molecules, making promising candidates sensing. To advance their use this field, it essential investigate the mechanisms complex interactions between COFs target molecules as well improve COF film fabrication methods. This review outlines design strategies films across multiscale: molecular interaction mechanisms, macroscopic interfacial synthesis methods, microscale/nanoscale approaches such double-layer filtration micro/nanostructured improved transfer. Finally, several key research directions are proposed suitability COF-based materials environments.

Language: Английский

Citations

5
Rational MOF Membrane Design for Gas Detection in Complex Environments DOI Open Access
Lei Kong,

Chengyue Yu,

Yupeng Chen

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 23, 2024

Abstract Metal‐organic frameworks (MOFs) hold significant promise in the realm of gas sensing. However, current understanding their sensing mechanisms remains limited. Furthermore, large‐scale fabrication MOFs is hampered by inadequate mechanical properties. These two challenges contribute to sluggish development MOF‐based gas‐sensing materials. In this review, selection metal ions and organic ligands for designing first presented, deepening interactions between different ions/organic target gases. Subsequently, typical interfacial synthesis strategies (gas‐solid, gas‐liquid, solid‐liquid interfaces) are provided, highlighting potential constructing MOF membranes on superhydrophobic and/or superhydrophilic substrates. Then, a multi‐scale structure design proposed, including multi‐dimensional membrane heterogeneous design, improve performance through enhanced mass transfer specific sieving. This strategy anticipated augment task‐specific capabilities materials complex environments. Finally, several key future research directions outlined with aim not only further investigate underlying principles but also achieve efficient detection gases amidst interfering elevated moisture levels.

Language: Английский

Citations

3
Hammerhead Shark‐Inspired Microvillus‐Structured Ionic Elastomers for Wet Gas Sensing Based on Solvated Ion Transport DOI Open Access
Chunyan Li, Hongyang Liu,

Lingyun Xu

et al.

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 13, 2025

Abstract Water molecules are ubiquitous disruptors of conventional gas sensing materials, often leading to diminished performance in materials that reliant on electronic signal transmission. This creates the pressing need for efficient with anti‐humidity interference properties. Here, a hammerhead shark‐inspired microvillus‐structured ionic elastomer based transmission nanoconfined space is constructed by incorporating liquids into polymer matrix. The elastomers optimized microvillus structure demonstrated 1.68‐fold higher response than flat ones, short time (9 s) toward 30 ppm triethylamine (TEA), excellent selectivity and low limit detection (LOD) (104.56 ppb). Such serves as proof‐of‐concept effectively combining solvated ion transport design develop advanced systems. With such an evident (23.52%), similar (12 s), LOD (498.05 ppb), long‐term stability (at least days) achieved at relative humidity 70%. Mechanistic investigations revealed effective ions facilitated after sequential water TEA surroundings while significantly enhanced transport. Furthermore, utility system shrimp decay monitoring under wet conditions.

Language: Английский

Citations

0