WO3 gas sensors prepared by thermal oxidization of tungsten

A Highly Stable Anode, Carbon‐Free, Catalyst Support Based on Tungsten Trioxide Nanoclusters for Proton‐Exchange Membrane Fuel Cells

“…[12][13][14] The advantages of WO 3 are that it is resistant to CO poisoning and the hydrogen spillover effect by the formation of hydrogen tungsten bronze. [15][16][17] The intrinsic conductivity in WO 3 arises from its non-stoichiometric composition, giving rise to a donor level formed by oxygen-vacancy defects in the lattice.…”

Deposition of porous nano-WO3 coatings with tunable grain shapes by liquid plasma spraying for gas-sensing applications

“…The major phonon bands at 805 cm À 1 and 712 cm À 1 are assigned to the O-W-O stretching mode and the peak at 805 cm À 1 refers to the vibration of shorter bonds. The W-O-W bending mode of bridging oxygen is located at 272 cm À 1 and 328 cm À 1 , and the peak located at 136 cm À 1 is for lattice vibrations of WO 3 [16]. Those bands are typical ones for monoclinic WO 3 .…”

Gigantically enhanced NO sensing properties of WO3/SnO2 double layer sensors with Pd decoration

“…Noticeably, the Pt/S/W(Pd) sensor exhibited the best sensing performance among these five sensors, with the response 10 times larger than and the recovery time only one tenth of that of the Pt/W sensor. For comparison, the responses, response times and the recovery times of representative NO gas sensors reported in literatures were normalized according to the definition of this work, and also listed in Table 2 [28,[34][35][36][37]. Among all the sensors listed in Table 2, the Pt/S/W(Pd) sensor has the fastest response and recovery, and the response is also one of the highest.…”