Highly Selective Room Temperature Detection of NH and NO Using Oxygen-Deficient WO-Supported WS Heterojunctions.

In this paper, we reported the controlled synthesis of tungsten disulfide/reduced tungsten oxide (WS/WO) heterojunctions for highly efficient room temperature NO and ammonia (NH) sensors. X-ray diffraction analysis revealed the formation of the oxygen-deficient WO phase along with WS. Field-emission scanning electron microscopy and transmission electron microscopy displayed the formation of WS flakes over WO nanorods.

Chemically Exfoliated Titanium Carbide for Highly Sensitive Electrochemical Sensors for Detection of 4-Nitrophenols in Drinking Water.

Soil and water contamination by numerous pollutants has been increasingly posing threats to food, water, agriculture, and human health. Using novel nanoscale materials to develop rapid electrochemical sensors is very promising due to the discovery of a number of new two-dimensional (2D) electronic materials. Of particular importance is 2D transition-metal carbide that has been shown to possess transformative properties pertaining to its physical, chemical, and environmental characteristics, leading to their potential sensor applications.