Advances in inorganic conductive material- and organic conductive polymer-based resistive gas sensors for room-temperature H2S detection
Year: 2025
Type: article
Abstract: Hydrogen sulfide (H2S) is a colorless, flammable, and highly toxic gas that underscores the need for cost-effective, energy-efficient, simple, convenient, and durable detection methods. Resistive gas sensors based on inorganic conductive materials and organic conductive polymers can effectively address these requirements. This review discusses the hazards of H2S gas and reviews sensors capable of detecting H2S at room temperature, including those based on metal oxides, MXene/carbon materials, and p-type conductive polymers. It explores the mechanisms behind their enhanced response at room temperature, such as utilizing special structures (e.g., porous/hollow nanospheres, nanowires, nanotubes, and nanocapsules) to increase the effective surface area of the sensing materials, employing metal particles sensitization to improve gas adsorption, and leveraging heterojunctions to amplify the response. Additionally, this review highlights the limitations of these sensors and provides insights for the further development of low-power resistive H2S gas sensors.
Source: Micro and Nano Systems Letters
Authors: Leilei Wang, Jungwook Choi
Institution: Chung-Ang University
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,090
OpenAlex ID: W4409688365