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Method for controllably preparing multi-shape copper-tetracyano-p-benzoquinone dimethane nano structure

A benzoquinodimethane and nanostructure technology, which is applied in chemical instruments and methods, polycrystalline material growth, crystal growth, etc., can solve the uncontrollable growth morphology and reaction of metal-tetracyanoquinodimethane nanowires Long time and other problems, to achieve the effect of low cost, short reaction time, simple operation

Inactive Publication Date: 2012-05-30
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method requires inert gas protection, long reaction time, and cannot control the growth morphology of metal-tetracyanoquinodimethane nanowires

Method used

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  • Method for controllably preparing multi-shape copper-tetracyano-p-benzoquinone dimethane nano structure
  • Method for controllably preparing multi-shape copper-tetracyano-p-benzoquinone dimethane nano structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The copper sheet was ultrasonically cleaned with acetone, dilute hydrochloric acid (0.1mol / L), deionized water, and ethanol for 15 minutes before use, and then dried in the air. Put a porcelain boat containing 2 mg of tetracyanoquinodimethane powder (Aldrich, analytically pure) into one end of a quartz tube with a diameter of 2 cm and a length of 25 cm away from the vacuum pump, and place the copper piece on the quartz tube. into the end of the tube near the vacuum pump. Insert the quartz tube into the tube furnace, reduce the air pressure in the quartz tube to 2Pa through a vacuum pump, and then control the temperature of the TCNQ sample from 20°C to 250°C within 5 minutes, and stop the heating after the temperature at the copper sheet reaches 110°C Reaction, cooled to room temperature. After the reaction, a blue-black film was formed on the copper sheet.

[0016] The appearance of the generated Cu-TCNQ nanostructures is as follows Figure 1a , 1b As shown, the copp...

Embodiment 2

[0018] The copper sheet was ultrasonically cleaned with acetone, dilute hydrochloric acid (0.1mol / L), deionized water, and ethanol for 15 minutes before use, and then dried in the air. Put a porcelain boat containing 3 mg of tetracyanoquinodimethane powder (Aldrich, analytically pure) into one end of a quartz tube with a diameter of 2 cm and a length of 25 cm away from the vacuum pump, and place the copper piece on the quartz tube. into the end of the tube near the vacuum pump. Insert the quartz tube into the tube furnace, reduce the air pressure in the quartz tube to 1Pa through a vacuum pump, and then control the temperature of the TCNQ sample from 20°C to 250°C within 6 minutes, and stop the heating after the temperature at the copper sheet reaches 110°C Reaction, cooled to room temperature. After the reaction, a blue-black film was formed on the copper sheet.

[0019] The appearance of the generated Cu-TCNQ nanostructure is the same as that of Example 1.

Embodiment 3

[0021] The copper sheet was ultrasonically cleaned with acetone, dilute hydrochloric acid (0.1mol / L), deionized water, and ethanol for 15 minutes before use, and then dried in the air. Put a porcelain boat containing 4 mg of tetracyanoquinodimethane powder (Aldrich, analytically pure) into one end of a quartz tube with a diameter of 2 cm and a length of 25 cm away from the vacuum pump, and place the copper piece on the quartz tube. into the end of the tube near the vacuum pump. Insert the quartz tube into the tube furnace, reduce the air pressure in the quartz tube to 3Pa through a vacuum pump, and then control the temperature of the TCNQ sample from 20°C to 250°C within 8 minutes, and stop the heating after the temperature at the copper sheet reaches 120°C Reaction, cooled to room temperature. After the reaction, a blue-black film was formed on the copper sheet.

[0022] The appearance of the generated Cu-TCNQ nanostructure is as follows Figure 2a , 2b As shown, the copp...

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Abstract

The invention relates to a method for controllably preparing a multi-shape copper-tetracyano-p-benzoquinone dimethane (Cu-TCNQ) nano structure in vacuum by controlling the temperature changing rate. The method synthesizes a multi-shape Cu-TCNQ nano structure array material under a vacuum condition by using organic gas-solid phase reaction and different temperature rise rates, achieves the controllable growth of the nano structure material, can adjust the diameter of the nano structure material, can obtain nano rods and nano wires, and can also control the shape of the top end of the nano structure material. The method has the advantages of simple operation, security, low cost and short reaction time, and is suitable for the large-scale production of the Cu-TCNQ nano structure array material. The obtained nano material can be widely applied to the aspects of field emission flat panel display, photoelectric switches, sensors and the like.

Description

technical field [0001] The invention relates to a method for controllably preparing multi-morphology copper-tetracyanoquinodimethane (Cu-TCNQ) nanostructures in vacuum by controlling the rate of temperature change. Background technique [0002] Copper-tetracyanoquinodimethane is a charge-transfer metal-organic complex with a very special electronic structure. Studies on the optical storage properties, photoelectric switching properties, gas sensing properties and field emission properties of Cu-TCNQ organic thin films are constantly being reported (Muller, R.; Genoe, J.; Heremans, P.Appl. Phys.Lett.2006 , 88, 242105; Potember, R.S.; Poehler, T.O.Appl.Phys.Lett.1979, 34, 405; Liu, H.B.; Zhao, Q.; 127, 1120), and aroused great interest. The use of Cu-TCNQ as an optical recording medium has entered the commercial trial stage, showing great application prospects. [0003] Although there are currently many methods for preparing Cu-TCNQ, such as the steam-induced reaction metho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C255/09C07C253/32C30B29/54C30B29/62C30B25/00
Inventor 王春儒田飞
Owner INST OF CHEM CHINESE ACAD OF SCI