Hydrothermal synthesis of sodium vanadium oxide nanorods for gas sensing application

Quasi-one-dimensional metal-oxide-based heterostructural gas-sensing materials: A review

“…The resistance of the oxides can be therefore altered on exposure to analyte gases, depending on the dominant charge carriers of the semiconductor and the type of gas that interacts with the material surface (Table 1) [23]. Based on this principle, oxide-semiconductor-based sensors with various morphologies have been employed to detect harmful and toxic gases [24][25][26][27][28][29][30][31]. However, most of them are not to our satisfaction and still stay in the experimental stage.…”

Room temperature vanadium dioxide–carbon nanotube gas sensors made via continuous hydrothermal flow synthesis

“…Monoclinic vanadium dioxide [VO2(M)] is a particularly interesting thermochromic material 11 , with a range of polymorphs that have attracted interest for use in gas sensing [12][13][14][15] . A variety of morphologies have been obtained for vanadium oxides (VOx), including nanofibers 16 , nano-belts 17 , nanorods 12,[18][19][20] and nanowires (NWs) 13 . Gas sensors using these nanomaterials have been used for the detection of ammonia (NH3) gas [21][22][23] , nitrogen dioxide (NO2) 24 , ethanol (C2H6O) 17,25 , methane (CH4) 26 and liquefied petroleum gas (LPG) 12 , at both ambient (25 ̊ C) and elevated operating temperatures.…”

Synthesis of platinum-decorated iron vanadate nanorods with excellent sensing performance toward n-butylamine

“…The environmental monitoring of amine vapors are of particular interest since both aliphatic and aromatic amines can induce toxicological effects to humans even at minimal concenTo date, diverse nanostructures based on transition metal vanadates have been reported, including ␤-AgVO 3 [12,13], ␣-CuV 2 O 6 [14],CuV 3 O 8 [15], Co 2 V 2 O 7 [16], ZnV 3 O 8 [17], Na 1.08 V 3 O 8 [18], MnV 2 O 6 [19], BiVO 4 [20], InVO 4 [21] and FeV 3 O 8 [22]. Among them, iron vanadate (FeVO 4 ), an n-type semiconductor (E g = 2.0 eV) with a triclinic structure [23], has been widely studied in terms of its morphological control and applications, including nanoplatelets for gas-sensors [22][23][24], nanosheets for photocatalysis [25], and nanorods for lithium-ion batteries [24,26].…”