Lignin-based two-dimensional carbon nano-material as well as preparing method and application thereof

A carbon nanomaterial and lignin-based technology, which is applied in the field of lignin-based two-dimensional carbon nanomaterials and their preparation, carbon materials and their preparation, can solve the problems of single material morphology, complex preparation method steps, no specific structure and the like , to achieve the effect of simple preparation process, good application prospect and stable structure
CN106564874AActive Publication Date: 2017-04-19NINGBO UNIVERSITY OF TECHNOLOGY
5 Cites 16 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NINGBO UNIVERSITY OF TECHNOLOGY
Publication Date
2017-04-19

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to a lignin-based two-dimensional carbon nano-material as well as a preparing method and an application thereof and belongs to the technical field of carbon materials. The two-dimensional carbon nano-material is prepared by the following steps of: after mixing lignin and a nitrogen-containing compound, carrying out pyrolysis and carbonization at an atmosphere, and then, washing and drying a pyrolysed and carbonized product. The two-dimensional carbon nano-material is of a curly flaky-layer structure, the lateral dimension of the flaky layer is 0.5-5mum, the thickness of the flaky layer is 10-50nm, and the specific surface area is larger than 400m<2> / g. By utilizing the regulating function of the nitrogen-containing compound on a carbonization process, a two-dimensional carbon nanometer structure is directly pyrolysed and synthesized without using additives, such as a catalyst, a hard template and an activating agent, or complicated instruments and equipment, the preparing process is simple, and industrial production and application can be realized. Besides, the prepared lignin-based two-dimensional carbon nano-material is stable in structure, and when is applied to the aspect of electromechanical energy storage, has a remarkable double-electric-layer capacitance property. A prepared supercapacitor has the advantages of being high in energy density, great in cycling property and the like.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a carbon material and its preparation method and application, in particular to a lignin-based two-dimensional carbon nanomaterial and its preparation method and application, belonging to the technical field of carbon materials. Background technique

[0002] Lignin is one of the main components of plant fiber raw materials, and its reserves in nature are second only to cellulose. It is a natural aromatic polymer containing a variety of active groups, with a carbon content of more than 50%. However, the current research on the utilization of lignin is still at a preliminary level, and it is mainly discharged as waste in the papermaking / plant hydrolysis process or burned as fuel, which not only has a low utilization rate, but also causes huge pollution to the environment.

[0003] The high-value utilization of lignin is of great significance to the development of the national economy and the sustainable development of the environ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More