Figure 3From: Controllable preparation of Ni nanoparticles for catalysis of coiled carbon fibers growthTEM images and electron diffraction pattern of Ni nanoparticles. TEM images (a,b,c) and electron diffraction pattern (d) of Ni nanoparticles obtained at 70°C when the molar concentration of NaOH is 0.8 M.Back to article page