Preparation of nitrogen-doped orderly-graded mesoporous carbon catalyst as well as carbon catalyst and application of carbon catalyst

A carbon catalyst, mesoporous carbon technology, applied in physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve problems such as differences in catalytic activity, achieve low cost, cost-friendly environment, and avoid doping processing effect
CN106861740AActive Publication Date: 2017-06-20DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
5 Cites 22 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Publication Date
2017-06-20

Smart Images

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

Abstract

The invention discloses a preparation method of a nitrogen-doped orderly-graded mesoporous carbon catalyst and application of the nitrogen-doped orderly-graded mesoporous carbon catalyst to proton exchange membrane fuel cells. The catalyst is prepared though a binary mixing template method; a triblock copolymer is used as a soft template agent and one or more of a Y-type molecular sieve, an MCM-41 molecular sieve and a ZSM-5 molecular sieve are used as a hard template agent; soluble resin is used as a carbon source; in a preparation process, a transition metal salt is added and a transition metal element is introduced in situ; meanwhile, a nitrogen element is introduced through roasting in an ammonia atmosphere. The nitrogen-doped orderly-graded mesoporous carbon material provided by the invention has an ordered mesoporous structure (with the size of 3nm to 5nm) generated by soft template induction and a three-dimensional through mesoporous structure (with the size of 10nm to 50nm) generated by hard template etching, has a high-activity specific surface and good mass-transferring performance and has excellent oxygen reduction catalysis performance and good electrochemical stability. By adopting the carbon material provided by the invention, application of the binary mixing template method to preparation of an oxygen reduction carbon-based catalyst is realized for the first time; meanwhile, the carbon material has the advantages of good process repeatability, low cost, good environmental friendliness and the like.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of fuel cells, in particular to the application of a nitrogen-doped ordered hierarchical mesoporous carbon catalyst in proton exchange membrane fuel cells. Background technique

[0002] Fuel cells have the advantages of fast response speed, high energy conversion efficiency, high energy density, and environmental protection and no pollution. They have bright application prospects in mobile power supplies, fixed power stations, distributed power stations, and military power supplies. After decades of hard work by researchers, the key materials of fuel cells have been broken through and made great progress. However, at present, fuel cells have not been applied in large-scale commercial applications, and their high cost is an important reason. As one of the key materials of fuel cells, platinum-based catalysts have become an important factor hindering the industrialization of fuel cells due to their scarcity a...

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