Ethanol and ozone sensing characteristics of WO3 based sensors activated by Au and Pd

Development of a sensitive gas sensor by trapping the analytes on nanomaterials and in situ cataluminescence detection

“…Semiconductor sensors based on the electrical conductivity changes with the composition of gas atmosphere surrounding it are popular and useful for ethanol sensing [11,12]. However, most of the traditional semiconductor sensors suffer from poor selectivity and are still inadequate for sensing multianalyte samples such as expiratory gas.…”

Cobalt nanograins effect on the ozone detection by WO3 sensors

“…This behaviour is attributed to the cobalt addition. In our previous work on modified WO 3 activated by noble metal (Au, Pd) [16], we never observed this behaviour. However, it has been shown that Co oxides have a p-type behaviour [17].…”

Gas sensing properties of WO3-based ceramics to ethanol vapors

“…[7][8][9][10][11][12]. The various WO 3 -based structures are sensitive to nitrogen monoxide [13], chlorine [14], ozone [15,16] and CO [8,10,11]. The high gas sensing of Ag-doped WO 3 for SO 2 was found in Ref.…”

“…[17]. In recent years, the gas sensing of WO 3 for organic vapors has been studied as sensor for methane [10,18], butane [18], benzol [10,19], and also ethanol [8][9][10]12,16,18,[20][21][22].…”