Advances in modification of metal and noble metal nanomaterials for metal oxide gas sensors: a review

IF 9.6 1区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Rare Metals Pub Date : 2025-02-11 DOI:10.1007/s12598-024-03027-7

Dan-Hong Gao, Qiu-Chen Yu, Mesfin A. Kebeded, Yu-Yan Zhuang, Sheng Huang, Ming-Zhi Jiao, Xin-Jian He

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引用次数: 0

Abstract

Highly sensitive gas sensors play an important role in applications, such as environmental monitoring, medical diagnostics and food testing. This paper reviews recent advances in metal-doped and noble metal-decorated chemo-resistive gas sensors with different nanostructures (ZnO, SnO₂, In₂O₃ and Fe₂O₃). It mainly includes the doping of metals such as Al, Fe and Cu, and the modification of noble metals such as Pd, Pt and Au, and introduces the bimetallic-modified materials possessing greater advantages than single metals in enhancing gas-sensitive performance. The results and problems of room-temperature detection of perovskite and metal oxide composite structural materials are also discussed. In addition, the potential applications of micro-electro-mechanical system (MEMS) gas sensing arrays and electronic nose smart sensing devices in disease diagnosis and environmental monitoring are presented through their limitations and development trends in areas such as smart homes. Finally, the main challenges and future prospects of metal oxide gas sensors are presented.

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来源期刊

Rare Metals 工程技术-材料科学：综合

CiteScore

12.10

自引率

12.50%

发文量

2919

审稿时长

2.7 months

期刊介绍： Rare Metals is a monthly peer-reviewed journal published by the Nonferrous Metals Society of China. It serves as a platform for engineers and scientists to communicate and disseminate original research articles in the field of rare metals. The journal focuses on a wide range of topics including metallurgy, processing, and determination of rare metals. Additionally, it showcases the application of rare metals in advanced materials such as superconductors, semiconductors, composites, and ceramics.