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Method for preparing load metal fullerene nano-micron material by supercritical fluid technology

A supercritical fluid and metal-loaded technology, which is applied in the production of fullerenes, nano-carbons, and bulk chemicals, can solve the problems of high surface tension, low repetition rate, and low metal loading, and achieve high loading and repeatability. The effect of high rate and many kinds of metals

Inactive Publication Date: 2013-02-27
QINGDAO UNIV OF SCI & TECH
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  • Description
  • Claims
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Problems solved by technology

[0007] However, the above method of supporting metals has the following disadvantages: 1) capillary adsorption method is limited to fullerene nano-micron tubes; 2) due to the high surface tension of fullerene micro-nano materials and metal materials, liquid-liquid When the metal is directly loaded by the interface method, the metal loading capacity is low, and this method is only applicable to a small amount of metals and their compounds, and the repetition rate is low

Method used

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  • Method for preparing load metal fullerene nano-micron material by supercritical fluid technology
  • Method for preparing load metal fullerene nano-micron material by supercritical fluid technology
  • Method for preparing load metal fullerene nano-micron material by supercritical fluid technology

Examples

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Effect test

Embodiment 1

[0028] 1. Weigh 20mgC 60 The powder is in a 20ml glass bottle with a purity of 99.9%. As a commercially available product, take 20ml of toluene with a graduated cylinder and add it to the glass bottle, sonicate for 10 minutes, and filter.

[0029] 2. Put the C in step 1 60 - The toluene solution was divided into four groups, 5ml of each group was placed in a 20ml glass bottle; 15ml of isopropanol was injected into each group, and then cultured in an airtight incubator at 8°C in a low-temperature incubator.

[0030] 3. After standing still for 12 hours, fullerene nanofibers with a length of about 20-50 μm can be prepared, and the scanning electron microscopy (SEM) photos are shown in figure 1 . Use a sieve with a pore size of about 20 μm to filter out the sample, wash it, dry it and weigh it, about 10 mg.

[0031] 4. Weigh 10 mg of ruthenium chloride, dissolve it in 20 ml of distilled water to form a ruthenium chloride solution, disperse the fullerene nano-micron fibers prep...

Embodiment 2

[0038] Example 2 has the same steps as Example 1, and the liquid-liquid interface method is used to prepare fullerene nano-micron materials, but the difference is that pyridine is used as a good solvent.

Embodiment 3

[0040] Example 3 has the same steps as Example 1, and the liquid-liquid interface method is used to prepare fullerene nano-micron materials, but the difference is that pyrrolidone is used as a good solvent.

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Abstract

The invention relates to a method for preparing a load metal fullerene nano-micron material by the supercritical fluid technology. The fullerene nano-micron material in the present invention refers to a fullerene nano-micron material with morphology of fullerene nano-micron fibers, fullerene nano-micron particles, and fullerene nano-micron wafers formed by fullerene molecules through covalent bond, ionic bond or van der waals force. The invention is named as the supercritical fluid load technology. The gas or liquid reaches the supercritical state by controlling temperature and pressure thereof in a reactor containing the fullerene nano-micron material and metal or metal precursor to achieve load. The method is wide in application range, high in load and high in repetition rate, and can be used for large-scale industrial production. The product of metal-loading fullerene nano-micron material can be applied to the fields of fuel cell electrodes, catalysts or catalyst carriers, low-dimensional semiconductors, and functional polymer composite materials.

Description

technical field [0001] The invention relates to the field of modification of fullerene-like nano-micron materials, in particular to a preparation method of metal-loaded fullerene nano-micron materials. Background technique [0002] Low-dimensional nano-micron carbon materials are ideal systems for studying the size and latitude effects of physical properties such as electron transport behavior, optical properties, and mechanical properties. It plays an important role and has become the frontier and hot spot in the field of nano-micro material science. [0003] Since the discovery of fullerene C by Kroto et al. in 1985 60 For a long time, fullerenes have unique physical and chemical properties due to their highly symmetric, spherically delocalized π-electron conjugated systems. The singular photophysics, electrical conductivity, photoconductivity and photolimitation behavior of fullerenes have aroused great interest of scientists. After more than 20 years of research, organ...

Claims

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Application Information

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IPC IPC(8): C01B31/00C01B32/154
CPCY02P20/54
Inventor 朴光哲王冰哲姬敏牛娜娜赵健
Owner QINGDAO UNIV OF SCI & TECH
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