Abstract

We have developed a method for the preparation of boehmite (AlOOH) nanopowder with tailored properties (particle size from 10 to 40 nm, thermal conductivity below 0.02 W/(m K), specific surface area on the order of 65 m²/g, and loose bulk density in the range 0.02–0.04 g/cm³) by hydrothermal treatment of γ‑Аl₂О₃ nanopowder in a 1.5% HCl solution at 200°C. The steps of the process have been identified and it has been shown to be a solid-state (topochemical) transformation.

中文翻译：

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水热条件下γ-Аl2О3纳米粉体转化为勃姆石的机理

摘要

我们已经开发出一种制备具有定制特性的勃姆石（AlOOH）纳米粉的方法（粒径为10至40 nm，导热系数低于0.02 W /（m K），比表面积约为65 m ² / g，并在范围0.02-0.04克/厘米松堆积密度³由γ-Аl的水热处理）₂ О ₃在200℃的1.5％HCl溶液纳米粉末。该过程的步骤已经确定，并且已经证明是固态（拓扑化学）转化。