CN108441840A - A kind of preparation method of the carbon nanotube foam of simplicity - Google Patents
A kind of preparation method of the carbon nanotube foam of simplicity Download PDFInfo
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- CN108441840A CN108441840A CN201810088658.0A CN201810088658A CN108441840A CN 108441840 A CN108441840 A CN 108441840A CN 201810088658 A CN201810088658 A CN 201810088658A CN 108441840 A CN108441840 A CN 108441840A
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- 239000006260 foam Substances 0.000 title claims abstract description 60
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 59
- 239000002041 carbon nanotube Substances 0.000 title claims abstract description 59
- 229910021393 carbon nanotube Inorganic materials 0.000 title claims abstract description 59
- 238000002360 preparation method Methods 0.000 title claims description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 66
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 33
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000005229 chemical vapour deposition Methods 0.000 claims abstract description 13
- 239000002131 composite material Substances 0.000 claims abstract description 11
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 10
- 239000008367 deionised water Substances 0.000 claims description 10
- 229910021641 deionized water Inorganic materials 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000011259 mixed solution Substances 0.000 claims description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 7
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 6
- XTUNVEMVWFXFGV-UHFFFAOYSA-N [C].CCO Chemical compound [C].CCO XTUNVEMVWFXFGV-UHFFFAOYSA-N 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- 150000007522 mineralic acids Chemical class 0.000 claims description 3
- 235000006408 oxalic acid Nutrition 0.000 claims description 2
- JDZCKJOXGCMJGS-UHFFFAOYSA-N [Li].[S] Chemical compound [Li].[S] JDZCKJOXGCMJGS-UHFFFAOYSA-N 0.000 abstract description 14
- 239000011149 active material Substances 0.000 abstract description 6
- 239000003054 catalyst Substances 0.000 abstract description 6
- 238000009792 diffusion process Methods 0.000 abstract description 6
- 239000007774 positive electrode material Substances 0.000 abstract description 6
- 239000002048 multi walled nanotube Substances 0.000 abstract description 4
- 239000010406 cathode material Substances 0.000 abstract 1
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/26—Deposition of carbon only
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
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- C01B32/00—Carbon; Compounds thereof
- C01B32/15—Nano-sized carbon materials
- C01B32/158—Carbon nanotubes
- C01B32/16—Preparation
- C01B32/162—Preparation characterised by catalysts
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/02—Pretreatment of the material to be coated
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- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
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- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
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- H01—ELECTRIC ELEMENTS
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- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
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Abstract
本发明公开了一种简便的制备碳纳米管泡沫的方法，本发明采用化学气相沉积的方法，以泡沫镍作为模板和催化剂，使碳纳米管沉积在泡沫镍表面，形成均匀的碳纳米管泡沫镍复合材料。碳纳米管泡沫是一种由多壁碳纳米管无序堆积而成的三维多孔网络结构，在能源和环境领域有广阔的应用前景。它主要是在化学气相沉积法下生长的多壁碳纳米管错综无序的相互搭接在一起，自组装成三维多孔网络状结构，制备得到的块体结构尺寸可达厘米数量级。同时，碳纳米管泡沫具有一系列优异的性能，本发明制备的碳纳米管泡沫可应用在锂硫电池正极材料方面，极大地提高了锂硫电池离子扩散速率和活性物质的利用率。本发明制备的碳纳米管泡沫呈均匀孔状结构。本发明可用于制备锂硫电池正极材料。
The invention discloses a simple method for preparing carbon nanotube foam. The invention adopts the method of chemical vapor deposition, uses nickel foam as a template and a catalyst, deposits carbon nanotubes on the surface of nickel foam, and forms uniform carbon nanotube foam Nickel composite. Carbon nanotube foam is a three-dimensional porous network structure composed of disorderly stacked multi-walled carbon nanotubes, which has broad application prospects in the fields of energy and the environment. It is mainly the multi-walled carbon nanotubes grown under the chemical vapor deposition method are intricately and disorderly overlapped together, self-assembled into a three-dimensional porous network structure, and the size of the prepared block structure can reach the order of centimeters. At the same time, the carbon nanotube foam has a series of excellent properties, and the carbon nanotube foam prepared by the present invention can be applied in lithium-sulfur battery cathode materials, which greatly improves the ion diffusion rate and the utilization rate of active materials in the lithium-sulfur battery. The carbon nanotube foam prepared by the invention has a uniform porous structure. The invention can be used to prepare positive electrode materials for lithium-sulfur batteries.
Description
技术领域technical field
本发明涉及一种简便的碳纳米管泡沫的制备方法。The invention relates to a simple method for preparing carbon nanotube foam.
背景技术Background technique
碳纳米管泡沫是一种由多壁碳纳米管无序堆积而成的三维多孔网络结构，在能源和环境领域有广阔的应用前景。它主要是在化学气相沉积法下生长的多壁碳纳米管错综无序的相互搭接在一起，自组装成三维多孔网络状结构，制备得到的块体结构尺寸可达厘米数量级。同时，碳纳米管泡沫具有一系列优异的性能，如导电性、良好的力学性能（柔性、弹性等）、高孔隙率、低密度、亲油疏水性等，使其有望在油污处理、锂硫电池.超级电容器、人工肌肉、微机电系统等领域具有非常可观的应用前景。本发明采用化学气相沉积的方法，以泡沫镍做为模板和催化剂，使碳纳米管沉积在泡沫镍表面，形成均匀的碳纳米管泡沫镍复合材料。本发明制备的碳纳米管泡沫可应用在锂硫电池正极材料方面，极大地提高了锂硫电池离子扩散速率和活性物质的利用率。Carbon nanotube foam is a three-dimensional porous network structure composed of disorderly stacked multi-walled carbon nanotubes, which has broad application prospects in the fields of energy and the environment. It is mainly the multi-walled carbon nanotubes grown under the chemical vapor deposition method are intricately and disorderly overlapped together, self-assembled into a three-dimensional porous network structure, and the size of the prepared block structure can reach the order of centimeters. At the same time, carbon nanotube foam has a series of excellent properties, such as electrical conductivity, good mechanical properties (flexibility, elasticity, etc.), high porosity, low density, lipophilic and hydrophobic properties, etc., making it promising in oil pollution treatment, lithium sulfur Batteries, supercapacitors, artificial muscles, micro-electromechanical systems and other fields have very considerable application prospects. The invention adopts a chemical vapor deposition method, uses nickel foam as a template and a catalyst, deposits carbon nanotubes on the surface of the nickel foam, and forms a uniform carbon nanotube foam nickel composite material. The carbon nanotube foam prepared by the invention can be applied to the positive electrode material of the lithium-sulfur battery, and greatly improves the ion diffusion rate and the utilization rate of the active material of the lithium-sulfur battery.
因此采用一种简便可行的方法制备出碳纳米管泡沫是具有巨大的使用价值和意义的。Therefore, it is of great use value and significance to prepare carbon nanotube foam by a simple and feasible method.
发明内容Contents of the invention
本发明要解决现有制备方法实验条件苛刻，操作繁琐的问题，而提供的一种简便易行的碳纳米管泡沫的制备方法。The invention aims to solve the problems of harsh experimental conditions and cumbersome operations in the existing preparation method, and provides a simple and easy preparation method of carbon nanotube foam.
本发明提出的一种碳纳米管泡沫的制备方法，具体步骤如下：A kind of preparation method of carbon nanotube foam that the present invention proposes, concrete steps are as follows:
(1)将切好的正方形泡沫镍块浸在质量分数为5%-25%的碱性混合溶液中，以洗去其表面油污，取出后用去离子水清洗三次；(1) Soak the cut square nickel foam block in an alkaline mixed solution with a mass fraction of 5%-25%, to wash off its surface oil stains, and wash it three times with deionized water after taking it out;
(2)将步骤（1）得到的产物在质量分数为5%-15%的无机酸溶液中浸泡10min，取出后同样用去离子水清洗三次；(2) Soak the product obtained in step (1) in a mineral acid solution with a mass fraction of 5%-15% for 10 minutes, and wash it three times with deionized water after taking it out;
(3)将步骤（2）得到的产物在50℃烘箱内烘干备用，接着在管式炉内用化学气相沉积方法在泡沫镍表面生长碳纳米管，控制氮气流速是20ml-40ml/min，乙醇碳源的通入速度是40ml-60ml/min，乙醇的通入时间是50min-100min,控制管式炉内的温度为780℃-820℃，碳纳米管生长结束后关闭管式炉的控制开关，让其自然冷却至室温，即可得到在泡沫镍表面生长的碳纳米管的复合材料。(3) Dry the product obtained in step (2) in an oven at 50°C for subsequent use, then use chemical vapor deposition to grow carbon nanotubes on the surface of nickel foam in a tube furnace, and control the nitrogen flow rate to 20ml-40ml/min, The feed rate of the ethanol carbon source is 40ml-60ml/min, the feed time of ethanol is 50min-100min, the temperature in the tube furnace is controlled at 780°C-820°C, and the tube furnace is closed after the growth of carbon nanotubes is completed. switch, let it cool down to room temperature naturally, and the composite material of carbon nanotubes grown on the surface of nickel foam can be obtained.
本发明中，步骤（1）所述的碱性混合溶液为NaOH和 Na2CO3混合溶液。In the present invention, the alkaline mixed solution described in step (1) is a mixed solution of NaOH and Na 2 CO 3 .
本发明中，步骤（2）所述的无机酸为草酸、盐酸或柠檬酸中任一种。In the present invention, the inorganic acid described in step (2) is any one of oxalic acid, hydrochloric acid or citric acid.
最后得到的就是碳纳米管泡沫样品，该制备方法操作简单，成本低，极易施行。Finally, the carbon nanotube foam sample is obtained, and the preparation method is simple in operation, low in cost and very easy to implement.
本发明的优点：一、本发明采用化学气相沉积的方法，以泡沫镍做为模板和催化剂，使碳纳米管沉积在泡沫镍表面，形成均匀的碳纳米管泡沫镍复合材料。二、本发明制备的碳纳米管泡沫可应用在锂硫电池正极材料方面，极大地提高了锂硫电池离子扩散速率和活性物质的利用率。Advantages of the present invention: one, the present invention adopts the method for chemical vapor deposition, uses nickel foam as a template and a catalyst, carbon nanotubes are deposited on the surface of nickel foam, and a uniform carbon nanotube foam nickel composite material is formed. 2. The carbon nanotube foam prepared by the present invention can be applied in the positive electrode material of lithium-sulfur batteries, which greatly improves the ion diffusion rate and the utilization rate of active materials in lithium-sulfur batteries.
附图说明Description of drawings
图1碳纳米管泡沫的SEM图谱。Fig. 1 SEM spectrum of carbon nanotube foam.
图2为碳纳米管泡沫样品图。Fig. 2 is a diagram of a carbon nanotube foam sample.
具体实施方式Detailed ways
下面的实施例是对本发明的进一步说明，而不是限制本发明的范围。The following examples are to further illustrate the present invention, but not to limit the scope of the present invention.
实施例1：一种碳纳米管泡沫的制备方法，按以下步骤进行。Embodiment 1: A method for preparing a carbon nanotube foam is carried out according to the following steps.
将切好的正方形泡沫镍块浸在质量分数均为10%的NaOH和 Na2CO3的混合溶液中，已洗去其表面油污，取出后用去离子水清洗三次。Immerse the cut square nickel foam block in a mixed solution of 10% NaOH and Na 2 CO 3 , wash off the oil stain on its surface, and wash it three times with deionized water after taking it out.
然后再在质量分数为10%的HCl溶液中浸泡10min,取出后同样用去离子水清洗三次。Then soak it in 10% HCl solution for 10 minutes, and wash it three times with deionized water after taking it out.
然后在50℃烘箱内烘干备用，接着在管式炉内用化学气相沉积方法在泡沫镍表面生长碳纳米管，控制氮气流速是25ml/min,乙醇碳源的通入速度是45ml/min，乙醇的通入时间是60min,管式炉内的温度控制在790℃左右，碳纳米管生长结束后关闭管式炉的控制开关，让其自然冷却至室温，即可得到在泡沫镍表面生长的碳纳米管的复合材料。Then dry it in a 50°C oven for subsequent use, then use chemical vapor deposition to grow carbon nanotubes on the surface of nickel foam in a tube furnace, control the nitrogen flow rate to be 25ml/min, and the feed rate of the ethanol carbon source to be 45ml/min. The feeding time of ethanol is 60 minutes, and the temperature in the tube furnace is controlled at about 790°C. After the growth of carbon nanotubes is completed, the control switch of the tube furnace is turned off, and it is allowed to cool down to room temperature naturally, and the carbon nanotubes grown on the surface of nickel foam can be obtained. Composites of carbon nanotubes.
最后得到的就是碳纳米管泡沫样品，该制备方法操作简单，成本低，极易施行。Finally, the carbon nanotube foam sample is obtained, and the preparation method is simple in operation, low in cost and very easy to implement.
本发明的优点：一、本发明采用化学气相沉积的方法，以泡沫镍作为模板和催化剂，使碳纳米管沉积在泡沫镍表面，形成均匀的碳纳米管泡沫镍复合材料。二、本发明制备的碳纳米管泡沫可应用在锂硫电池正极材料方面，极大地提高了锂硫电池离子扩散速率和活性物质的利用率。Advantages of the present invention: 1. The present invention adopts the method of chemical vapor deposition, uses nickel foam as a template and a catalyst to deposit carbon nanotubes on the surface of nickel foam to form a uniform carbon nanotube foam nickel composite material. 2. The carbon nanotube foam prepared by the present invention can be applied in the positive electrode material of lithium-sulfur batteries, which greatly improves the ion diffusion rate and the utilization rate of active materials in lithium-sulfur batteries.
实施例2：一种碳纳米管泡沫的制备方法，按以下步骤进行。Embodiment 2: A method for preparing a carbon nanotube foam is carried out according to the following steps.
将切好的正方形泡沫镍块浸在质量分数均为15%的NaOH和 Na2CO3的混合溶液中，已洗去其表面油污，取出后用去离子水清洗三次。Dip the cut square nickel foam block in a mixed solution of NaOH and Na 2 CO 3 with a mass fraction of 15%. The surface oil has been washed away. After taking it out, wash it with deionized water three times.
然后再在质量分数为15%的HCl溶液中浸泡10min,取出后同样用去离子水清洗三次。Then soak it in 15% HCl solution for 10 minutes, and wash it three times with deionized water after taking it out.
然后在50℃烘箱内烘干备用，接着在管式炉内用化学气相沉积方法在泡沫镍表面生长碳纳米管，控制氮气流速是30ml/min,乙醇碳源的通入速度是50ml/min，乙醇的通入时间是70min,管式炉内的温度控制在800℃左右，碳纳米管生长结束后关闭管式炉的控制开关，让其自然冷却至室温，即可得到在泡沫镍表面生长的碳纳米管的复合材料。Then dry in 50 DEG C oven for subsequent use, then use chemical vapor deposition method to grow carbon nanotubes on the foamed nickel surface in the tube furnace, control the nitrogen flow rate to be 30ml/min, and the feed rate of ethanol carbon source is 50ml/min, The feeding time of ethanol is 70min, and the temperature in the tube furnace is controlled at about 800°C. After the growth of carbon nanotubes is completed, the control switch of the tube furnace is turned off, and allowed to cool down to room temperature naturally, and the carbon nanotubes grown on the surface of nickel foam can be obtained. Composites of carbon nanotubes.
最后得到的就是碳纳米管泡沫样品，该制备方法操作简单，成本低，极易施行。Finally, the carbon nanotube foam sample is obtained, and the preparation method is simple in operation, low in cost and very easy to implement.
本发明的优点：一、本发明采用化学气相沉积的方法，以泡沫镍作为模板和催化剂，使碳纳米管沉积在泡沫镍表面，形成均匀的碳纳米管泡沫镍复合材料。二、本发明制备的碳纳米管泡沫可应用在锂硫电池正极材料方面，极大地提高了锂硫电池离子扩散速率和活性物质的利用率。Advantages of the present invention: 1. The present invention adopts the method of chemical vapor deposition, uses nickel foam as a template and a catalyst to deposit carbon nanotubes on the surface of nickel foam to form a uniform carbon nanotube foam nickel composite material. 2. The carbon nanotube foam prepared by the present invention can be applied in the positive electrode material of lithium-sulfur batteries, which greatly improves the ion diffusion rate and the utilization rate of active materials in lithium-sulfur batteries.
实施例3：一种碳纳米管泡沫的制备方法，按以下步骤进行。Embodiment 3: A preparation method of carbon nanotube foam is carried out according to the following steps.
将切好的正方形泡沫镍块浸在质量分数均为20%的NaOH和 Na2CO3的混合溶液中，已洗去其表面油污，取出后用去离子水清洗三次。Dip the cut square nickel foam block in a mixed solution of NaOH and Na 2 CO 3 with a mass fraction of 20%, and the surface oil has been washed off. After taking it out, wash it three times with deionized water.
然后再在质量分数为12%的HCl溶液中浸泡10min,取出后同样用去离子水清洗三次。Then soak it in 12% HCl solution for 10 minutes, and wash it three times with deionized water after taking it out.
然后在50℃烘箱内烘干备用，接着在管式炉内用化学气相沉积方法在泡沫镍表面生长碳纳米管，控制氮气流速是35ml/min,乙醇碳源的通入速度是55ml/min，乙醇的通入时间是80min,管式炉内的温度控制在810℃左右，碳纳米管生长结束后关闭管式炉的控制开关，让其自然冷却至室温，即可得到在泡沫镍表面生长的碳纳米管的复合材料。Then dry in 50 DEG C oven for subsequent use, then grow carbon nanotubes on the surface of foamed nickel by chemical vapor deposition in tube furnace, control the nitrogen flow rate to be 35ml/min, and the feed rate of ethanol carbon source is 55ml/min, The feeding time of ethanol is 80 minutes, and the temperature in the tube furnace is controlled at about 810°C. After the growth of carbon nanotubes is completed, the control switch of the tube furnace is turned off, and it is allowed to cool down to room temperature naturally, and the carbon nanotubes grown on the surface of nickel foam can be obtained. Composites of carbon nanotubes.
最后得到的就是碳纳米管泡沫样品，该制备方法操作简单，成本低，极易施行。Finally, the carbon nanotube foam sample is obtained, and the preparation method is simple in operation, low in cost and very easy to implement.
本发明的优点：一、本发明采用化学气相沉积的方法，以泡沫镍作为模板和催化剂，使碳纳米管沉积在泡沫镍表面，形成均匀的碳纳米管泡沫镍复合材料。二、本发明制备的碳纳米管泡沫可应用在锂硫电池正极材料方面，极大地提高了锂硫电池离子扩散速率和活性物质的利用率。Advantages of the present invention: 1. The present invention adopts the method of chemical vapor deposition, uses nickel foam as a template and a catalyst to deposit carbon nanotubes on the surface of nickel foam to form a uniform carbon nanotube foam nickel composite material. 2. The carbon nanotube foam prepared by the present invention can be applied in the positive electrode material of lithium-sulfur batteries, which greatly improves the ion diffusion rate and the utilization rate of active materials in lithium-sulfur batteries.
上述对实施例的描述是为了便于该技术领域的普通技术人员理解和应用本发明。熟悉本领域技术的人员显然可以容易地对这些实施实例做出各种修改，并把在此说明的一般原理应用到其他实施例中而不必经过创造性的劳动。因此，本发明不限于这里的实施例，本领域技术人员根据本发明的揭示，对本发明做出的改进和修改都应该在本发明的保护范围之内。The above descriptions of the embodiments are intended to facilitate the understanding and application of the present invention by those of ordinary skill in the art. It is obvious that those skilled in the art can easily make various modifications to these implementation examples, and apply the general principles described here to other embodiments without creative efforts. Therefore, the present invention is not limited to the embodiments herein, and improvements and modifications made by those skilled in the art according to the disclosure of the present invention should fall within the protection scope of the present invention.
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| CN109680257A (en) * | 2019-02-19 | 2019-04-26 | 中国铝业股份有限公司 | A kind of preparation method of nano material |
| CN110282616A (en) * | 2019-06-29 | 2019-09-27 | 天津大学 | The method that composite shuttering prepares three-dimensional grapheme multistage network material |
| CN112210766A (en) * | 2019-07-12 | 2021-01-12 | 中国科学院苏州纳米技术与纳米仿生研究所 | Carbon nanotube foam material with electromagnetic shielding performance and its preparation method and application |
| CN113299924A (en) * | 2021-06-03 | 2021-08-24 | 哈尔滨理工大学 | Preparation method and application of carbon nanotube/molybdenum oxide integrated array electrode material |
| CN113562723A (en) * | 2020-04-29 | 2021-10-29 | 上海大学 | Light impact-resistant carbon material with gradient density structure, preparation method and application |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109680257A (en) * | 2019-02-19 | 2019-04-26 | 中国铝业股份有限公司 | A kind of preparation method of nano material |
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| CN112210766A (en) * | 2019-07-12 | 2021-01-12 | 中国科学院苏州纳米技术与纳米仿生研究所 | Carbon nanotube foam material with electromagnetic shielding performance and its preparation method and application |
| CN112210766B (en) * | 2019-07-12 | 2022-11-22 | 中国科学院苏州纳米技术与纳米仿生研究所 | Carbon nanotube foam material with electromagnetic shielding performance and its preparation method and application |
| CN113562723A (en) * | 2020-04-29 | 2021-10-29 | 上海大学 | Light impact-resistant carbon material with gradient density structure, preparation method and application |
| CN113299924A (en) * | 2021-06-03 | 2021-08-24 | 哈尔滨理工大学 | Preparation method and application of carbon nanotube/molybdenum oxide integrated array electrode material |
| CN113299924B (en) * | 2021-06-03 | 2023-05-02 | 哈尔滨理工大学 | Preparation method and application of carbon nano tube/molybdenum oxide integrated array electrode material |
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