… Metal oxide-based resistive-type gas sensors are solid-state devices which are widely used
… more metal oxides to form a heterojunction interface can have drastic effects on gas sensor …

… Therein, the fundamental sensing mechanism of metal-oxide-based gas sensors relies
upon this change in electrical conductivity in response to ambient gases. These processes are …

… for enhancing the gas sensing properties of metal oxide semiconductors and analyses the
gas sensing mechanisms to highlight the importance of the gas sensing mechanism. Finally, …

… are already some reviews on metal oxide gas sensor [7–9], it … of metal oxides from the
perspective of nanoscience and … on metal oxide nanostructures and their gas sensing properties …

… in sensor efficiency. In this review, a comprehensive review on the recent progress of …
gas sensors fabricated by coupling various metal oxides and 2D materials like transition metal …

… of noble metal sensitized SMO gas sensors as well as their advanced applications being
widely reported, 24,25 the adopted “spillover effect” introduced by the noble metal NPs (NMNPs…

… in the application of metal and metal oxide nanoparticles in this field. While a lot of reviews
and book chapters describe the working principle of metal oxide gas sensors in detail, here …

… -sensing materials can promote the gas-sensing performances dramatically. However, the
review on the gas sensors based on the nanoscale quasi-1D metal … -based nanoscale quasi-…

… gases in the environment can have dangerous effects on human health, and therefore portable,
flexible, and highly sensitive gas sensors … commercialized sensors are based on metal …

… Gas sensing based on nanostructured metal oxides has been reviewed in the present
article. Details relating to gas sensing with special emphasis on (i) sensor device structures (MIM, …