Some interesting insights into the acetone sensing characteristics of monoclinic WO₃

Abstract

Considering the importance of tungsten oxide (WO3) in fabricating acetone sensors for the non-invasive diagnosis of diabetes, we have tried to understand the sensing behaviour of this interesting material in detail.

Synthesis and Characterization of Composite WO3 Fibers/g-C3N4 Photocatalysts for the Removal of the Insecticide Clothianidin in Aquatic Media

“…43-1035, confirming the monoclinic crystalline phase of WOFs with the P21/n space group [ 59 , 60 , 61 , 62 , 63 ]. The average crystallite size for WOFs was calculated by using the Scherrer equation for the aforementioned 2θ values and found to be 15.80 nm [ 64 , 65 , 66 , 67 ]. These findings are consistent with the crystallographic features of electrospun WO 3 fibrous materials reported in the literature, as they all exhibited a monoclinic crystalline phase with average crystallite sizes ranging from 13.00 to 26.50 nm [ 59 , 66 , 67 , 68 ].…”

Polypyrrole-Ag/AgCl Nanocomposite-Enabled Exhaled Breath-Acetone Monitoring Non-Invasive Biosensor for Diabetes Diagnostics

“…2,3 Selectivity is a crucial parameter for a gas sensor/ non-invasive biosensor for its practical, clinical and commercial viability. 1,13,19,37 It is tested by exposing the sensor to various common interfering analytes and recording their sensing responses. This work further tests various interfering analytes and biomarkers in human breath, including generic humidity, ammonia for the renal disorder, toluene and ethanol for lung cancer, and carbon dioxide and nitrogen oxides for asthma.…”

“…[1][2][3][4][5][6][7] Various sensing materials, including metal-based, carbonbased, biological and inorganic nanomaterials, have been developed for efficient and accurate low-trace acetone detection. 5,7,[13][14][15][16][17][18] Majorly, metal and metal oxide nanomaterials based chemiresistive sensors are the most commercialized class for acetone detection. [19][20][21] However, their high-temperature operation increases the complexity, energy requirement and cost and decreases lifetime due to the merging of grain boundaries of nanostructures.…”