Mechanism of CO adsorption on hexagonal WO3 (001) surface for gas sensing: A DFT study

DFT study on interaction of NO2 with the vacancy-defected WO3 nanowires for gas-sensing

“…Tungsten trioxide (WO 3 ), which is a wide band-gap n-type semiconductor [1], has been experimentally proved to be a promising gas-sensing material for sensitive detection of various toxic and dangerous gases, such as NO x [2,3], NH 3 [3,4] and CO [3,5,6] and so on. So far, considerable progress has been made in the experimental studies about preparation and gas-sensing properties of WO 3 , especially one-dimensional (1D) nanowires.…”

DFT investigation on CO sensing characteristics of hexagonal and orthorhombic WO3 nanostructures

“…Zhao.L et al [26] reported the mechanism of CO adsorption on hexagonal WO 3 (001) surface for gas sensing using a DFT study. Wang et al [27] explained the concept of surface stabilization of hexagonal WO 3 by non-metallic atoms using a DFT study.…”

“…In spite of this, several experimental studies [14,15] have been reported based on pure monoclinic WO 3 based gas sensors. In recent days, hexagonal phase WO 3 have been reported as CO gas sensor [16] owing to good selectivity and sensitivity.…”

Ultrasonic-assisted synthesis of plasmonic Z-scheme Ag/AgCl/WO3-nanoflakes photocatalyst in geothermal water with enhanced visible-light photocatalytic performance

“…As an n-type semiconductor, tungsten trioxide (WO 3 ) has gained increasing research interest for its utilization in a series of different fields, such as photocatalysts [1,2] , photoelectrocatalysts [3,4] , gas sensing [5,6] and lithium battery [7,8] . Tungsten trioxide is able to absorb approximately 12% of solar light reached to the earth surface duo to suitable band gap about 2.4-2.8 eV.…”