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Porous carbon films

一种多孔碳、基膜的技术，应用在化学领域，能够解决低机械强度、低电导率、繁琐等问题

Active Publication Date: 2017-02-22
NANJING MOMENTUM MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These technologies can prepare NCF with excellent properties, but they also face one or more of the following problems: expensive raw materials, complex, cumbersome or time-consuming preparation processes, low mechanical strength, low electrical conductivity, low porosity, discontinuous nanopores, the orientation of the pores is not controllable, or it is difficult to produce in large quantities

Method used

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Examples

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specific Embodiment approach

[0064] 1 Introduction

[0065] In the work described in this example, a scalable production method was developed based on colloidal imprinted carbon (CIC) for the preparation of self-supporting nanoporous carbon films (NCF), including the following steps: 1) will contain carbon precursors including An aqueous precursor mixture of body, surfactant, silica-based structural template, binder, plasticizer, and additives is coated on a substrate, 2) the mixture is dried to form a film, and 3) the film is thermally treated (carbonized) , then 4) remove the silica template. Casting is the preferred method for preparing these films because it is suitable for fabrication on a large scale [7, 16, 17]. The thickness of the film can be controlled (for example, from 100 nm to 1 mm) by changing the concentration of the aqueous precursor mixture or adjusting the gap between the doctor blade and the substrate during casting. In this example, the pore size of the membrane was controlled by us...

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Abstract

Self-supporting or supported porous carbon films, including nanoporous carbon films, are provided. The porous carbon films comprise an open network of interconnected pores. Methods for making porous carbon films are also provided. One synthesis method includes formation of a synthesis mixture comprising particles of an inorganic material, a carbon precursor material and water, forming a layer of the synthesis mixture on a substrate and heat treating the film to convert the carbon precursor to carbon.

Description

[0001] Cross reference to related applications [0002] This application claims priority benefit to US Provisional Application No. 61 / 950965, filed March 11, 2014, which is hereby incorporated by reference in its entirety. technical field [0003] The application relates to a film and a preparation method thereof, in particular to a porous carbon-based film and a preparation method thereof; belonging to the field of chemical technology. Background technique [0004] Carbon materials with nanoscale structure have been extensively studied and widely used. This is because of its advantages of low specific gravity, good electrical conductivity, high specific surface area, easy surface modification, and suitability for mass production. Examples of such materials are carbon black, carbon nanotubes, carbon nanofibers, ordered mesoporous carbon, and the like. Porous colloid-imprinted carbon (CIC) powders have also been prepared with narrow pore size distribution and three-dimensio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/00B01D37/02C01B31/02C01B33/14C07K17/14C12N11/14C12N15/10H01M4/96
CPCC12N11/14C01P2006/12H01M4/8807H01M4/9016H01M4/9083H01M4/926H01M8/0234H01M8/0243B01J20/3204B01J20/324B01J20/3248B01J20/3293B01J20/103B01J20/28019B01J20/205C01B32/05Y02E60/50Y02E60/13B01D2325/02833B01D71/021C01P2006/16H01M4/8605H01M4/9041H01M4/96
Inventor 维尔拉·博斯力小安达斯汀·班汉姆丹尼尔·Y·郭
Owner NANJING MOMENTUM MATERIALS TECH CO LTD
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