Porous materials as effective chemiresistive gas sensors

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27740%2F24%3A10254763" target="_blank" >RIV/61989100:27740/24:10254763 - isvavai.cz</a>

Alternative codes found

RIV/61989592:15640/24:73624732

Result on the web

<a href="https://pubs.rsc.org/en/content/articlelanding/2024/cs/d2cs00761d" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2024/cs/d2cs00761d</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d2cs00761d" target="_blank" >10.1039/d2cs00761d</a>

Result language

angličtina

Original language name

Porous materials as effective chemiresistive gas sensors

Original language description

Chemiresistive gas sensors (CGSs) have revolutionized the field of gas sensing by providing a low-power, low-cost, and highly sensitive means of detecting harmful gases. This technology works by measuring changes in the conductivity of materials when they interact with a testing gas. While semiconducting metal oxides and two-dimensional (2D) materials have been used for CGSs, they suffer from poor selectivity to specific analytes in the presence of interfering gases and require high operating temperatures, resulting in high signal-to-noise ratios. However, nanoporous materials have emerged as a promising alternative for CGSs due to their high specific surface area, unsaturated metal actives, and density of three-dimensional inter-connected conductive and pendant functional groups. Porous materials have demonstrated excellent response and recovery times, remarkable selectivity, and the ability to detect gases at extremely low concentrations. Herein, our central emphasis is on all aspects of CGSs, with a primary focus on the use of porous materials. Further, we discuss the basic sensing mechanisms and parameters, different types of popular sensing materials, and the critical explanations of various mechanisms involved throughout the sensing process. We have provided examples of remarkable performance demonstrated by sensors using these materials. In addition to this, we compare the performance of porous materials with traditional metal-oxide semiconductors (MOSs) and 2D materials. Finally, we discussed future aspects, shortcomings, and scope for improvement in sensing performance, including the use of metal-organic frameworks (MOFs), covalent-organic frameworks (COFs), and porous organic polymers (POPs), as well as their hybrid counterparts. Overall, CGSs using porous materials have the potential to address a wide range of applications, including monitoring water quality, detecting harmful chemicals, improving surveillance, preventing natural disasters, and improving healthcare. This review emphasizes the crucial role of chemiresistive gas sensors (CGS) in gas detection. It underscores porous materials as alternatives, showcasing their exceptional attributes. The review explores CGS-based porous materials in real-life applications.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10400 - Chemical sciences

Project

<a href="/en/project/EH22_008%2F0004587" target="_blank" >EH22_008/0004587: Technology Beyond Nanoscale</a><br>

Continuities

—

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Chemical Society Reviews

ISSN

0306-0012

e-ISSN

1460-4744

Volume of the periodical

53

Issue of the periodical within the volume

5

Country of publishing house

GB - UNITED KINGDOM

Number of pages

48

Pages from-to

2530-2577

UT code for WoS article

001154427900001

EID of the result in the Scopus database

2-s2.0-85183960085