Method for preparing nano tube of some metalloid oxides and metals with size and shape being controllable

Abstract

A process for preparing the size and shape controllable ampholytic metal oxides and their metallic nanotubes features that based on the principle that under existance of excessive alkali the ampholytic metal hydroxide can become coordinate anions, under the action of surfactant as "soft template", the ampholytic metal oxide and its metallic nanotubes can be prepared by direct hydrothermal reaction or redox reaction (for example, ZnO, CuO, Al2O3, PbO2, SnO2 and relative metals). Its advantages are simple process, controllable sizes of nanotube, uniform wall thickness, and high output.

Description

Technical field [0001] The invention belongs to a method for preparing nano materials. Background technique [0002] Since the discovery of carbon nanotubes by the Japanese scientist Iijima in 1991, one-dimensional nanostructures, including nanowires, nanorods, nanotubes, nanoribbons, nanofibers, etc., have attracted the attention of many domestic and foreign chemistry, physics and materials scientists. Of great interest, this is because one-dimensional nanomaterials present unique physical and chemical properties different from their bulk, and broad application prospects. In the past ten years, nanotubes with carbon nanotubes as the core have received widespread attention, and most of the work has been devoted to the development of nanotube preparation methods and the study of properties. In recent years, breakthroughs have been made in the research on nanotubes. Single-walled carbon nanotubes and multi-walled carbon nanotubes, carbides, metals, oxides, and sulfides with a diame...

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