Figure 2From: Fabrication and NO2 gas sensing performance of TeO2-core/CuO-shell heterostructure nanorod sensorsTEM images, diffraction pattern, and profile of TeO 2 /CuO core-shell nanorods. (a) Low-magnification TEM image, (b) high-resolution TEM image, (c) selected area electron diffraction pattern, and (d) EDS line scanning concentration profile of TeO2/CuO core-shell nanorods.Back to article page