Carbon-metal composite material and process of preparing the same

A metal composite material, metal technology, applied in gold-organic compounds, chemical instruments and methods, fuel cells, etc., can solve the problems of non-uniform composition of composite materials, difficult to prepare particle specific surface area, etc.

Inactive Publication Date: 2006-08-16
SAMSUNG SDI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, considering the nature of the aerosol method, only particle shapes similar to spheres can be obtained, and thus it is difficult to prepare particles with various shapes to improve the specific surface area of

Method used

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  • Carbon-metal composite material and process of preparing the same
  • Carbon-metal composite material and process of preparing the same
  • Carbon-metal composite material and process of preparing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] 3.8 g of nickel(II) acetate tetrahydrate and 2.0 g of trimesic acid were added to 100 mL of distilled water and stirred at 55° C. for 2 hours. The powder produced in the solution was separated using a nylon filter, washed several times with distilled water, and then dried in an oven at 100° C. for 2 hours to obtain a crystalline coordination polymer.

[0082] The obtained crystalline coordination polymer was heat-treated in an Ar atmosphere at 900 °C for 1 hour to prepare a carbon-nickel composite material with the same shape and reduced volume as the untreated crystalline coordination polymer.

[0083] The carbon-nickel composite was tested using X-ray diffraction method. As a result, it was confirmed that the size of the nickel metal particles was 18.3 nm. refer to figure 1 , a periodicity of 18 nm can be observed when performing small-angle X-ray diffraction experiments.

[0084] The SEM images of the untreated crystalline coordination polymer and the carbon-metal...

Embodiment 2

[0086] 3.8 g of nickel(II) acetate tetrahydrate and 2.0 g of trimesic acid were added to 100 mL of distilled water and stirred at room temperature for 2 hours. The powder produced in the solution was separated using a nylon filter, washed several times with distilled water, and then dried in an oven at 100° C. for 2 hours to obtain a crystalline coordination polymer.

[0087] The obtained crystalline coordination polymer was heat-treated in an Ar atmosphere at 900 °C for 1 hour to prepare a carbon-metal composite having the same shape and reduced volume as the untreated crystalline coordination polymer.

[0088] refer to Figure 4 , a periodicity of 29 nm can be observed when performing small-angle X-ray diffraction experiments.

[0089] The SEM images of the untreated crystalline coordination polymer and the carbon-metal composite obtained after heat treatment are in Figure 5 with 6 shown in . from Figure 5 with 6 It can be seen that although the density of the carbon...

Embodiment 3

[0091] A carbon-nickel composite material was prepared in the same manner as in Example 1, except that the synthesis temperature of the coordination polymer was changed from 55°C to 100°C.

[0092] The SEM images of the untreated crystalline coordination polymer and the carbon-metal composite obtained after heat treatment are in Figure 7 with 8 shown in . from Figure 7 with 8 It can be seen that although the density of the carbon-metal composite after heat treatment is higher than that before heat treatment due to the decrease in volume, the original crystal structure is maintained. Therefore, the carbon-metal composite has a regular shape.

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Abstract

The invention provides a carbon-metal composite material which has improved conductivity, specific surface area and regularity and a shape which is easily controlled, and a process of preparing the same. The carbon-metal composite material includes carbon and metal, has a sheet resistance of 8m CR/sq. or less under a pressure of 100 kg f/cm2 and a specific surface area of 30 m2/g or greater, shows an X-ray pattern having at least one peak at d-spacing of 6 nm or greater.

Description

technical field [0001] The present invention relates to a carbon-metal composite material and a method for preparing the same, and more particularly, to a carbon-metal composite material having improved electrical conductivity, specific surface area, and regularity and having an easily controllable shape, and a method for preparing the same. Background technique [0002] Conventional conductive carbon materials are generally used to reduce the internal resistance of various energy storage devices, thereby improving energy efficiency. For example, they can be used as conductive or active materials for batteries, catalyst supports for fuel cells, and electrode materials for supercapacitors. [0003] Studies have been conducted to improve physical properties and improve the conductivity of conductive carbon materials. In this regard, for example, US Patent No. 4,263,376, US Patent No. 6,649,265, US Patent No. 6,780,350, and US Patent No. 5,783,139 can be referred to. [0004]...

Claims

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Application Information

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IPC IPC(8): C07F15/02C07F15/06C07F15/00C07F3/08C07F1/08C07F7/28C07F9/00C07F11/00C07F13/00C07F15/04C07F1/10C07F1/12C07F7/00C07F5/00C07F7/22C07F7/24C07F9/94B01J32/00H01M8/00
CPCY02E60/50C07F15/00C07F15/04
Inventor 林东民金翰秀咸龙男李晶姬
Owner SAMSUNG SDI CO LTD
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