Nanostructured metal oxide heterojunctions for chemiresistive gas sensors

文献情報

出版日 2023-11-02

DOI 10.1039/D3TA04953A

インパクトファクター 12.732

著者

Shuai Ma

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要旨

Owing to the advantages of the high specific surface area, excellent electronic conduction behavior, and special diffusion pathways originating from nanoscale heterojunctions, there is a need to analyze the representative gaseous biomarkers that contribute to the wide application of nanostructured metal oxide heterojunction-based gas sensors. Herein, we describe different available routes, including electrospinning, chemical/physical vapor deposition, atomic layer deposition, and hydrothermal routes, for optimizing the crystallinity and morphology of heterojunctions, and the effects of the major parameters of these methods on the gas-sensing performance are deeply explored. On the basis of analyzing the correlations among the process–structure properties, the effects of heterojunctions on the elevated gas-sensing properties are mainly manifested in reducing the operating temperature and improving the sensitivity, selectivity, and humidity resistance. The limitations that exist inside the heterojunctions are also highlighted. This review also proposes insights into the limitations and future topics on the utilization of nanostructured metal oxide heterojunctions. Ultimately, it is expected that this study will provide a fundamental theory for breaking through the limitations of the heterojunctions and further promote their application in environmental monitoring, disease diagnosis, and food quality assessment.

掲載誌

Journal of Materials Chemistry A

CiteScore: 19.5

自己引用率: 4.7%

年間論文数: 2211

Journal of Materials Chemistry A, B & C cover high quality studies across all fields of materials chemistry. The journals focus on those theoretical or experimental studies that report new understanding, applications, properties and synthesis of materials. The journals have a strong history of publishing quality reports of interest to interdisciplinary communities and providing an efficient and rigorous service through peer review and publication. The journals are led by an international team of Editors-in-Chief and Associate Editors who are all active researchers in their fields. Journal of Materials Chemistry A, B & C are separated by the intended application of the material studied. Broadly, applications in energy and sustainability are of interest to Journal of Materials Chemistry A, applications in biology and medicine are of interest to Journal of Materials Chemistry B, and applications in optical, magnetic and electronic devices are of interest to Journal of Materials Chemistry C. More than one Journal of Materials Chemistry journal may be suitable for certain fields and researchers are encouraged to submit their paper to the journal that they feel best fits for their particular article. Example topic areas within the scope of Journal of Materials Chemistry A are listed below. This list is neither exhaustive nor exclusive. Artificial photosynthesis Batteries Carbon dioxide conversion Catalysis Fuel cells Gas capture/separation/storage Green/sustainable materials Hydrogen generation Hydrogen storage Photocatalysis Photovoltaics Self-cleaning materials Self-healing materials Sensors Supercapacitors Thermoelectrics Water splitting Water treatment

Nanostructured metal oxide heterojunctions for chemiresistive gas sensors

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Journal of Materials Chemistry A

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