Synthesis method of cobaltosic oxide nano-tube

Abstract

The present invention provides a synthesis method of cobaltosic oxide nano tube. Said method includes the following steps: (a), in a soluble salt solution in which the cobaltous ions are dissolved, under the condition of stirring slowly-adding ammonia water solution until the precipitate is formed; (b), centrifugally washing the formed precipitate until the pH value of said washing liquor is neutral; (c), making the washed precipitate be again dispersed in the solvent, adding inorganic salt as mineralization agent according to be weight portion ratio of washed precipitate; inorganic salt=1:0-3, stirring them to make them be completely dissolved; and (d), placing the above-mentioned materials into a closed reactor, making reaction for 5-30 h at 100-250 deg.C, cooling to room temperature, washing and drying so as to obtain the invented cobaltosic oxide nano tube.

Description

Technical field: [0001] The invention belongs to the technical field of inorganic chemical industry, and relates to a production method of nanomaterials, in particular to a synthesis method of tricobalt tetroxide nanotubes. Background technique: [0002] In recent years, one-dimensional nanomaterials have attracted extensive attention because of their unique physical and chemical properties. Among them, nanotubes, as a special form of these materials, have good applications in many fields, such as catalysis, sensing, and nanoelectronic devices. Therefore, the preparation of nanotubes of various materials with good properties has become a research hotspot at present. [0003] Cobalt trioxide nanotubes, as an important functional P-type semiconductor nanomaterial, are widely used in heterogeneous catalysis, sensors, electrochromatographic devices, solar energy absorption, and preparation of pigments, especially in the current production of lithium-ion battery materials cobalt...

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Problems solved by technology

Among them, the Co prepared by the colloidal template method 3 o 4 Nanotubes have poor morphology and low yield, which limits their large-scale production and application [X.Y.Shi, S.B.Han, R.J.Sanedrin, et al.Synthesis of Cobalt Oxide Nanotubes from Cobalt Oxide Nanotubes from Colloidal Particles Modified with aCo (III)-Cysteinato Precursor Chem.Mater.2002,14,1897-1902]; Co 3 o 4 Nanotubes make the whole reaction process more complicated, increase the preparation cost, and are not conducive to large-scale production [W.Yang, L.N.Xu, J.Chen.Co 3 o 4 Nanomaterials in Lithium-Ion Batteries and Gas Sensors Adv. Funct. Mater. 2005, 15, 851-857]

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