Synthesis of nano-meter micro-porous Ni_xZn_(1-x)Fe₂O₄ by hydrothermal method

Nano-meter micro-porous Ni_xZn_(1-x)Fe₂O₄ (x=0, 0.5) ferrites were obtained by hydrothermal method. Tri-ethylamine was used as template by differential thermal analysis (DTA). The results of adsorption experiment show that the powder has micro-porous structure. The crystal structure of the powder was studied by X-ray Diffraction (XRD), and the results show that the powder is of spinel structure. The morphology of Ni_xZn_(1-x)Fe₂O₄ (x=0, 0.5) ferrite was studied by TEM, and the results show that Ni_0.5Zn_0.5Fe₂O₄ and ZnFe₂O₄ ferrite is well-crystal, well-degree of dispersion with little conglomeration because of weak magnetism. The size of the powder is below 50 nm.