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Two kinds of hierarchical ZnO flower-like porous nanostructures with numerous nanosheets were successfully synthesised through a template-free and low-cost oxalic acid assisted solvothermal method combined with a heat post-treatment. The obtained products were characterised by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). SEM and TEM results...
An easy approach for the fabrication of titanium dioxide hollow spheres is proposed. Nanostructures were obtained by the conventional hard template method with silica-protected calcination. The samples were characterised by differential thermal analysis and thermogravimetry, Brunauer-Emmett-Teller nitrogen adsorption isotherms, X-ray diffraction, scanning and transmission electron microscopy (SEM...
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