Preparation method of germanium nanotubes

A technology of nanotubes and working electrodes, applied in the field of preparation of germanium nanotubes, can solve the problems of inability to realize, difficult to operate, complicated equipment, etc., and achieves the effects of convenient operation, wide electrochemical window and high safety.

Active Publication Date: 2013-09-11
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims to solve the problems in the existing preparation method that the equipment is complicated, the operation is difficult, a catalyst and a carrier gas are needed, and it cannot be realized at room temperature, and a method for preparing germanium nanotubes is provided.

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  • Preparation method of germanium nanotubes
  • Preparation method of germanium nanotubes
  • Preparation method of germanium nanotubes

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specific Embodiment approach 1

[0019] Specific embodiment one: the preparation method of a kind of germanium nanotube of this embodiment is specifically carried out according to the following steps:

[0020] 1. Select a polycarbonate porous membrane with a diameter of 13 mm to 25 mm, a thickness of 6 μm to 11 μm, and a pore diameter of 200 nm to 3 μm, and use ion sputtering to sputter gold with a thickness of 160 nm to 500 nm on the dark side of the polycarbonate porous membrane. Prepare a working electrode with gold-plated electrodeposited germanium nanotubes at one end, and attach the gold-plated end of the working electrode to the conductive substrate with a conductive slurry;

[0021] Second, in H 2 O and O 2 Under the condition that the content is less than 1ppm, the GeCl 4 Add it into the ionic liquid 1-methyl-3-ethylimidazole bistrifluorosulfonic acid ammonium salt solvent, dissolve and shake well, and then let it stand for 24 hours to prepare an electrolyte solution with a concentration of 0.01-0....

specific Embodiment approach 2

[0024] Embodiment 2: This embodiment differs from Embodiment 1 in that: in step 1, the conductive substrate is copper foil, nickel sheet, indium tin oxide or fluorine-doped tin oxide. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0025] Embodiment 3: The difference between this embodiment and Embodiment 1 is that the thickness of gold in step 1 is 200nm-400nm. Others are the same as in the first embodiment.

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Abstract

The invention relates to a preparation method of germanium nanotubes. The invention is used for solving technical problems of can not prepare germanium nanotubes in nanotube length and with controllable wall thickness and feature existing in a conventional preparation method. The preparation method comprises: 1, preparing a working electrode; 2, preparing an electrolyte; 3, reducing germanium; and 4, removing a polycarbonate polypore membrane. The preparation method of the germanium nanotubes provided by the invention achieves the preparation of the semiconductor germanium nanotubes at the room temperature, has recyclable utilization of an ionic liquid, simple process, convenient operation, environmental friendliness, and high safety. The preparation method is used for preparing the germanium nanotubes.

Description

technical field [0001] The invention relates to a preparation method of germanium nanotubes. Background technique [0002] Since Japanese scientist Lijima discovered carbon nanotubes with a high-resolution transmission microscope in 1991, one-dimensional nanomaterials have become a hot research topic in the scientific community. One-dimensional nanomaterials show more advantageous characteristics than bulk materials, such as quantum size effect, quantum tunneling effect, surface and interface effect, etc. Thereby changing its magnetic, optical, acoustic, thermal, electrical, and superconductive properties. One-dimensional nanotubes have become the focus of nanotechnology due to their large aspect ratio, high anisotropy, unique structure and physical and chemical properties. It is widely used in the fields of electronic information, aerospace, environmental protection energy and biomedicine, and has important application potential in the preparation of new nano-devices. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/08C30B29/62C30B30/02
Inventor 赵九蓬刘旭松李垚刘昕郝建
Owner HARBIN INST OF TECH
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