… Li et al. has presented the effect of Cr doped TiO2 thin films as NO2 and O2 gas sensor, this
… They were characterized by monitoring changes in the electrical resistance. It was clearly …

… Therefore, there is a need for NO 2 gas sensors with improved … = R air /R NO2 ) for the
Cr-doped TiO 2 based sensor when … toward NO 2 again H 2 , and CO reducing exhaust gases (d). …

… The NO 2 gas in the environment has been noticed to be very deadly and toxic to human …
Hence, it is mostly important to fabricate low-cost gas sensors for NOx with high performance at …

… The versatile utility of Cr-doped TiO 2 systems is vividly … The synthesis of titanium dioxide
films involves a spectrum of … deposition of both undoped and Cr-doped thin films on quartz and …

… In this paper, we study Cr-doped CeTi catalysts with a variable … The concentrations of NO
were monitored by a Fourier … activated, forming NO 2 and NH 4 + ; after that, NO 2 reacts with …

… and monitoring problems with a high operating temperature … Based on our previous results
on undoped, Al and Cr-doped TiO … Our sensor’s selectivity toward NO against CO and NO 2 at …

… CO 2 gas sensors based on Cr-doped thin films working at … of industrial and automobile
exhaust pollution control. On the … Gas NO 2 sensors are extensively used, in order to monitor …

… RT NO 2 sensor based on two-phase TiO x heterogeneous NPs, holding great potential for
applications in environmental monitoring and gas … TiO 2 NPs NO 2 gas sensors, their particle …

… NOx gas sensors are gaining importance in automotive exhausts and combustion systems.
… Al- and Cr-doped TiO 2 relying on the fact that undoped TiO 2 is capable of NO 2 -sensing at …

… The work addresses the problem of long- term stability of metal oxide materials gas sensor
performance and deals with Nb(V) doped nanocrystalline TiO 2 which is characterized by …