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CN101789288A 一种钛酸镍@二氧化钛多晶纳米电缆的制备方法 失效 - 权利终止

一种钛酸镍@二氧化钛多晶纳米电缆的制备方法
摘要：
本发明涉及一种钛酸镍@二氧化钛多晶纳米电缆的制备方法，属于纳米材料制备技术领域。本发明包括三个步骤：(1)配制纺丝液。将硝酸镍和聚乙烯吡咯烷酮(PVP)加入到N，N-二甲基甲酰胺中，形成芯层纺丝液；将PVP加入到钛酸丁酯和无水乙醇的混合液中，形成壳层纺丝液。(2)制备[PVP+Ni(NO3)2]@[PVP+Ti(OC4H9)4]复合纳米纤维。采用同轴静电纺丝技术，电压12～15kV；室温20～25℃，相对湿度45％～55％。(3)制备NiTiO3@TiO2多晶纳米电缆。将复合纳米纤维热处理即得NiTiO3@TiO2多晶纳米电缆，芯层直径150-230nm，壳层厚度20-40nm，长度＞500μm。
摘要（英）：

The invention relates to a preparation method of a nickel titanate at titanium dioxide multi-crystal nanometer cable, which belongs to the preparation technical field of the nanometer material, and comprises the following three steps that: (1) spinning solution is configured: nickel nitrate and polyvinylpyrrolidone (PVP) are added into N,N-dimethylformamide to form a core-layer spinning solution; and PVP is added into the mixed solution of Tetrabutyl orthotita and absolute ethyl alcohol to form shell-layer spinning solution; (2) [PVP+Ni(NO3)2] at [PVP+Ti(OC4H9)4] composite nanometer fiber is prepared: the coaxial static spinning technology is adopted, the voltage is 12 to 15 kV, the room temperature is 20 to 25 DEG C, and the relative humidity is 45 to 55 percent; and (3) a NiTiO3 at TiO2 multi-crystal nanometer cable is prepared: the composite nanometer fibers are thermally treated to obtain the NiTiO3 at TiO2 multi-crystal nanometer cable, the diameter of the core layer is 150 to 230 nm, the thickness of the shell layer is 20 to 40 nm, and the length is more than 50 micrometers.

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