A synergistic approach to enhance sensitivity and selectivity of room temperature operable ammonia gas sensor with humidity assistance using RGO/WOnanocomposite.

In this study, the fabrication of an ultrahigh selective NHgas sensor based on RGO/WOnanocomposite has been proposed. The hydrothermal method was employed to synthesize the RGO/WOnanocomposite. The formation of RGO/WOnanocomposite and the elemental composition, structure and morphology of the as-synthesized materials were confirmed through an array of analytical techniques, including XRD, Raman, FT-IR, XPS and TEM.

Tailored mesoporous γ-WO nanoplates: unraveling their potential for highly sensitive NH detection and efficient photocatalysis.

Herein, the monoclinic phase of tungsten oxide (γ-WO) was successfully obtained after annealing hydrothermally synthesised WO powder at 500 °C. As per the result obtained from the N adsorption-desorption isotherm, the material has been identified as mesoporous with a specific surface area of 3.71 m g from BET (Brunauer-Emmett-Teller) analysis.