Highly sensitive and selective xylene sensor based on p-p heterojunctions composites derived from off-stoichiometric cobalt tungstate

Although the construction of heterojunctions between two different oxides is an attractive strategy to improve the sensing performance of metal oxide semiconductor (MOS) based gas sensors, there are few research reports focus on constructing p-p heterojunctions. Here we presented the sensitive material of p-p heterojunctions CoWO4-Co3O4 nanocomposites derived from off-stoichiometric cobalt tungstate which are prepared through facile hydrothermal...