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Method for preparing carbon nano tube by sunflower seed skin

A technology for carbon nanotubes and sunflower seeds is applied in the field of preparing carbon nanotubes, which can solve the problems of high cost of carbon nanotube raw materials, high energy consumption, harsh experimental conditions, etc. Effect

Inactive Publication Date: 2014-03-05
HEILONGJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention aims to solve the problems that the existing method for preparing carbon nanotubes has high raw material cost, harsh experimental conditions and high energy consumption, and the specific capacitance of the prepared carbon nanotubes is less than 85F / g, and provides a method using sunflower seeds Method for preparing carbon nanotubes

Method used

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  • Method for preparing carbon nano tube by sunflower seed skin
  • Method for preparing carbon nano tube by sunflower seed skin
  • Method for preparing carbon nano tube by sunflower seed skin

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specific Embodiment approach 1

[0017] Specific embodiment one: a kind of method that utilizes sunflower seed skin to prepare carbon nanotube, specifically is carried out according to the following steps:

[0018] 1. Place the quartz tube with sunflower seed husk in a high-temperature tubular resistance furnace, one end of the quartz tube is connected to the atmosphere, and the other end of the quartz tube uses a nitrogen bottle to flow into the quartz tube at a rate of 300mL / min~500mL / min. Nitrogen is fed for 0.5h~1.5h, and a protective bottle is connected between the nitrogen bottle and the tube furnace. Then, stop feeding nitrogen and seal the nitrogen end and the end connected to the atmosphere. The heating rate is 15°C / min, from room temperature to 400°C~1200°C, then keep the temperature for 2h~4h, and then naturally cool to room temperature to obtain the carbonized solid;

[0019] 2. Grind the carbonized solid in step 1 with a mortar for 10min~30min, then add 1mol / L~4mol / L nitric acid to the ground sol...

specific Embodiment approach 2

[0021] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is: the rate of introducing nitrogen in step 1 is 400mL / min. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0022] Specific embodiment 3: The difference between this embodiment and specific embodiment 1 or 2 is: the time for passing nitrogen in step 1 is 1 h. Others are the same as in the first or second embodiment.

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Abstract

The invention relates to a method for preparing a carbon nano tube by sunflower seed skin, belonging to the field of the method for preparing the carbon nano tube, and aiming at solving the problems that the existing method for preparing the carbon nano tube is high in raw material cost, rigorous in experiment conditions and high in energy consumption; and the specific capacitance of the prepared carbon nano tube is less than 85F / g. The method for preparing the carbon nano tube by the sunflower seed skin comprises the steps of: 1, carrying out carbonization on the sunflower seed skin; and 2, purifying the carbonized product. The method for preparing the carbon nano tube by the sunflower seed skin has the advantages of being simple in equipment, low in raw material cost, wide in raw material source, easy in implement of experiment conditions and low in energy consumption; and the specific capacitance of the prepared carbon nano tube reaches 110F / g. The method for preparing the carbon nano tube by the sunflower seed skin can be applied to the field of storage of hydrogen, leads with nanoscale, a capacitor and carbon nano tube reinforced composite material.

Description

technical field [0001] The present invention relates to the field of methods for preparing carbon nanotubes. Background technique [0002] Carbon nanotubes are light in weight and have a hollow structure, which can be used as an excellent container for storing hydrogen, and the density of stored hydrogen is even higher than that of liquid or solid hydrogen. Properly heated, hydrogen can be released slowly. Researchers are trying to use carbon nanotubes to make portable hydrogen storage containers. [0003] The interior of carbon nanotubes can be filled with metals, oxides and other substances, so that carbon nanotubes can be used as molds. First, metals and other substances are used to fill carbon nanotubes, and then the carbon layer is corroded to produce the finest nanoscale. Some carbon nanotubes themselves can also be used as nanoscale wires. In this way, the micro wires prepared by using carbon nanotubes or related technologies can be placed on silicon chips to produ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B31/02B09B3/00C01B32/16
Inventor 牛海军张海洋汪永明马丽娜张春雨赵紫辰
Owner HEILONGJIANG UNIV
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