Rational design of semiconductor metal oxide nanomaterials for gas sensing by template-assisted synthesis: a survey
Review
Yuanyang XUN, Siqi LI, Feiyu ZHANG, Yan HONG, Ke XU, Ligang CHEN, Song LIU, Bin LI,lisiqibest@sina.com,carlosliusong@nefu.edu.cn,libinzh62@163.com
Frontiers of Information Technology & Electronic Engineering
2023,
Volume 24,
Issue 7,
Pages 945-963
doi:
10.1631/FITEE.2200552
Abstract:
have received extensive attention because of the gas pollution caused by rapid construction of urbanization and industrialization. based on semiconductor metal oxide (SMO) have the advantages of high response, excellent repeatability, stability, and cost-effectiveness, and have become extremely important components in the gas sensor field. Materials with regular structures and controllable morphology exhibit more consistent and repeatable performance. However, during the process of material synthesis, because of the uncontrollability of the microcosm, nanomaterials often show irregularities, unevenness, and other shortcomings. Thus, the synthesis of with well-aligned one-al (1D) structures, two-al (2D) layered structures, and three-al (3D) hierarchical structures has received extensive attention. To obtain regular structured nanomaterials with desired morphologies and s, a template-assisted synthesis method with low cost and controllable process seems a very efficient strategy. In this review, we introduce the morphology and performance of SMO sensors with 1D, 2D, and 3D structures, discuss the impact of a variety of morphologies on gas sensor performance (response and stability), and shed new light on the synthesis of gas sensing materials with stable structure and excellent performance.
Keywords：
Gas sensors
Chemi-resistors
Template-assisted methods
Nanostructure
Dimension
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