Abstract
The development of high-performance gas sensors and electromagnetic (EM) wave absorption materials is crucial for protecting the living environment and human health. Due to their easy availability and unique physicochemical properties, metal oxides have attracted much attention for gas sensing and EM wave absorption. Defects engineering in metal oxides has proved an efficient approach to enhance the gas-sensing and EM wave absorption performances via adjusting the geometric property of the material, optimizing the electronic structure and electrical property, as well as promoting the gas-sensing reaction between tested gas and the material. And defective metal oxides are regarded as promising candidates for toxic gas detection and EM wave absorption. In this chapter, we have systematically summarized the recent process of defect engineering in metal oxide for gas sensors and EM wave absorption, and the related mechanism for improved gas-sensing and EM wave absorption performances are thoroughly documented, respectively. Prospects and challenges are discussed in the development of defective metal oxides for high-performance gas sensors and EM wave absorbers.
Published Version
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