Improved formaldehyde gas sensing properties of well-controlled Au nanoparticle-decorated In2O3 nanofibers integrated on low power MEMS platform

Gold-carbonaceous materials based heterostructures for gas sensing applications

“…Microelectromechanical system (MEMS) techniques are widely used to fabricate gas sensing devices. 148,149 Many literature reports based on MEMS fabricated gas sensors using Au-based materials have been published [150][151][152] in recent years. MEMS technology also offers a single miniaturized system to complex multifunctional systems.…”

Enhanced formaldehyde gas-sensing response based on indium oxide nanowires doped with same-valence metal cations

“…Nowadays, one-dimensional MOS nanostructures are widely studied as gas-sensing mediums due to their very large surface-to-volume ratio, high specific surface area and high porosity. 13–15 In recent years, nanowires (NWs) have been used widely in gas sensors. For example, Wang et al synthesized mesoporous Co 3 O 4 NWs using a nanocasting method, and these NWs indicated an excellent gas-sensing performance for toluene gas.…”

Ultrathin PANI-Decorated, Highly Purified and Well Dispersed Array Cncs for Highly Sensitive HCHO Sensors

“…Formaldehyde (HCHO) is widely used in the chemical industry because it is an economical chemical. However, formaldehyde as gaseous pollution from indoor decoration and industrial production, described as a carcinogen by the US National Toxicology Program, is harmful and toxic to human beings [21][22][23][24]. Different methods, including gas/liquid chromatography (GC/LC), colorimetric analysis and mass spectrometry (MS) have been developed to mitigate this.…”

“…Different methods, including gas/liquid chromatography (GC/LC), colorimetric analysis and mass spectrometry (MS) have been developed to mitigate this. However, these methods are always time-consuming and costly [21,22].…”