Figure 2From: Pd Nanoparticles and Thin Films for Room Temperature Hydrogen SensorSEM micrographs for Pd nanoparticles grown at voltage of −0.1 V (a), −1.0 V (b), −2.0 V (c) and −3.0 V (d) respectively applied to the working electrode using the electrolyte solution which is mixture of Pd sulfate (0.04 m/L) and sulfuric acidBack to article page