Method for preparing boron-doped porous carbon material with high specific surface area from biomass

A high specific surface area, porous carbon material technology, applied in chemical instruments and methods, carbon compounds, inorganic chemistry, etc., can solve the problems of complex process, low specific surface area and high requirements of carbon materials, and achieve high boron atom doping rate, The effect of large specific surface area and high mesoporosity
CN111994907AActive Publication Date: 2020-11-27HEFEI UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEFEI UNIV OF TECH
Publication Date
2020-11-27

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Abstract

The invention relates to a method for preparing a high-specific-surface-area boron-doped porous carbon material from biomass, which comprises the following steps: pulverizing biomass into fine particles, proportionally and uniformly mixing the pulverized biomass particles with a boric acid-containing water solution to form a mixture, and putting the mixture into a hydrothermal reaction kettle to perform hydrothermal reaction; dehydrating and drying hydrothermal carbon obtained after the hydrothermal reaction; putting the dried hydrothermal carbon into a pyrolyzing furnace, and carrying out rapid pyrolysis under the protection of an inert atmosphere to obtain a biomass source boron-doped porous carbon material with high specific surface area after rapid pyrolysis; the method has the advantages of wide sources of raw materials, simple and green process, lower equipment requirements, short time consumption in the production process and high efficiency, and is suitable for industrial large-scale production.
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Description

technical field

[0001] The invention belongs to the field of boron-doped carbon material preparation, especially the field of biomass preparation of boron-doped porous carbon material with high specific surface area. Background technique

[0002] Biomass is widely distributed in nature and has huge reserves, and it is the only carbon-neutral energy source that can replace petroleum-derived fuels and chemicals. China produces about 100 million tons of waste biomass (crop stalks, sawdust, weeds, microalgae, animal waste, etc.) every year. The energy contained in these waste biomass is equivalent to 100 million tons of standard coal, which is a huge treasure trove of resources. . Biomass can be converted into a solid substance containing a large number of aromatic ring structures through hydrothermal or pyrolysis technologies, that is, biochar, which has a very broad application prospect in the field of environment and chemical industry; in recent years, the application of car...

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
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