Figure 2From: Facile Fabrication of Ultrafine Hollow Silica and Magnetic Hollow Silica Nanoparticles by a Dual-Templating Approach a, b TEM micrographs of samples S1 and S2 (without annealing treatment). The inset is the image of the product with high magnification. c The TEM images and SAED patterns of hollow magnetite NPsBack to article page