Copper germinate nano-wire and preparation thereof

A copper germanate and nanowire technology, applied in chemical instruments and methods, germanium compounds, inorganic chemistry, etc., can solve problems such as no copper germanate nanowire structure, achieve batch preparation, simple preparation process, The effect of low growth temperature

Inactive Publication Date: 2009-05-20
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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  • Copper germinate nano-wire and preparation thereof
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  • Copper germinate nano-wire and preparation thereof

Examples

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Example Embodiment

[0029]Example 1: A copper sheet with a size of about 6×2cm was ultrasonically cleaned in distilled water for ten minutes, and then fixed on the stainless steel bracket in the middle of the reactor, and then 1% of the solvent weight of germanium dioxide was mixed with distilled water Placed in a sealed reactor, the total amount of germanium dioxide and solvent accounts for 5% of the reactor vessel. Under the uniform stirring of a magnetic stirrer, the temperature is 200℃ and the pressure is 1-2MPa for 24 hours, and it is prepared on a copper sheet. The velvet-like light blue deposits uniformly deposited on the surface were obtained, and copper germanate nanowires with a length greater than 10 μm, a relatively uniform diameter distribution, and an average diameter of about 100 nm were obtained.

Example Embodiment

[0030] Example 2: A copper sheet with a size of about 6×2cm was ultrasonically cleaned in distilled water for ten minutes, and then fixed on the stainless steel bracket in the middle of the reactor, and then germanium dioxide accounting for 5% by weight of the solvent was mixed with distilled water Placed in a sealed reactor, the total amount of germanium dioxide and solvent accounts for 5% of the reactor vessel. Under the uniform stirring of a magnetic stirrer, the temperature is 200°C and the pressure is 1-2MPa for 12 hours, and it is prepared on a copper sheet. The velvet-like light blue deposits uniformly deposited on the surface were obtained, and copper germanate nanowires with a length greater than 10 μm, a relatively uniform diameter distribution, and an average diameter of about 100 nm were obtained.

Example Embodiment

[0031] Example 3. A copper sheet with a size of approximately 6×2cm was ultrasonically cleaned in distilled water for ten minutes, and then fixed on the stainless steel bracket in the middle of the reactor, and then germanium dioxide accounting for 5% of the weight of the solvent was mixed with distilled water Placed in a sealed reactor, the total amount of germanium dioxide and solvent accounted for 8% of the reactor vessel. Under the uniform stirring of a magnetic stirrer, it was kept at a temperature of 250°C and a pressure of 2-4 MPa for 24 hours, and it was prepared on a copper sheet. The velvet-like light blue deposits uniformly deposited on the surface were obtained, and copper germanate nanowires with a length greater than 10 μm, a relatively uniform diameter distribution, and an average diameter of about 100 nm were obtained.

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Abstract

The invention discloses a copper germanic acid nano wire and a preparation method thereof, belonging to the technical field of nano material preparation. The copper germanic acid nano wire consists of single-crystal copper germanic acid core and a very thin amorphous copper germanic acid casing covered on the external layer. The preparation method takes germanium dioxide and sheet copper as raw material and water as a solvent, wherein, the sheet copper is also used as a deposition substrate. The preparation method comprises the steps of: ultrasonically cleaning the sheet copper in distilled water for 10 minutes, fixing the sheet copper in a reaction kettle vessel, uniformly stirring the sheet copper, insulating heat for 0-24 hours under the temperature of 200-500 DEG C and the pressure of 1-15MPa, and finally obtaining the copper germanic acid nano wire on the sheet copper. The preparation method has the advantages of free growth template addition, simple preparation process, easy operation and control, low growth temperature and lower preparation cost. In addition, as the method adopts the processes of innocuous germanium oxide and hydro-deposition, the raw material and the preparation process are harmless to the environment, therefore, the requirement of environmental protection is met. The preparation method can realize the mass preparation of the copper germanic acid nano wire.

Description

Technical field: [0001] The invention belongs to the technical field of nanomaterial preparation, and in particular relates to a copper germanate (CuGeO 3 ) nanowires and methods for their preparation. Background technique: [0002] Copper germanate (CuGeO 3 ), as the first discovered inorganic crystal with a spin-Peierls phase transition, is a spintronic material that has aroused interest in the fabrication of microelectronics using its electron spin properties Devices for information storage and transmission, such as hard disk read heads, magnetic random access memory (MRAM) and magnetic sensors, spin transistors, field effect transistors, spin light-emitting diodes and logic components, have good application prospects . One-dimensional nanomaterials are important structural units of nanoelectronic devices and optoelectronic devices in the future. They have good development prospects in the field of basic research and application development of nanomaterials. By prepari...

Claims

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Application Information

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IPC IPC(8): C01G17/00
Inventor 裴立宅赵海生
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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