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Ni(OH)2 microspheres composed of intersected nanopetals are hydrothermally produced using NH4F as the morphology directing agent. The amount of NH4F can not only affect the morphology of Ni(OH)2, but also the microstructure and pore size. Through rational control of the NH4F dosage, Ni(OH)2 microspheres with macro/mesoporous structure are obtained. The 3D hierarchical structure can not only increase...
Co3O4 hollow spheres assembled from nanoparticles have been successfully synthesized by a one-pot hydrothermal carbonization and calcination method. In this method, carbon spheres obtained through hydrothermal carbonization at a low temperature of 140 °C are used as sacrificial templates. The carbonization process was monitored by Fourier transform infrared spectroscopy (FT-IR) and Raman spectroscopy...
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