Method for preparing bean dregs-based nitrogen-boron co-doped porous carbon material

A porous carbon material, bean dregs-based nitrogen-boron technology, applied in the field of material science, can solve the problems of high price and complex preparation process, and achieve the effect of simple method, various types and rich content

Active Publication Date: 2019-02-15
宿州学院
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  • Abstract
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  • Application Information

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Problems solved by technology

[0005] In order to overcome the problems in the prior art that the preparation process of carbon materials for preparing electrodes is complicated

Method used

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  • Method for preparing bean dregs-based nitrogen-boron co-doped porous carbon material
  • Method for preparing bean dregs-based nitrogen-boron co-doped porous carbon material
  • Method for preparing bean dregs-based nitrogen-boron co-doped porous carbon material

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Embodiment 1

[0052] The main experimental drugs of the present invention include: potassium ferrate (VI), boric acid, 1-methyl-2-pyrrolidone, potassium hydroxide, polyvinylidene fluoride, hydrochloric acid, sulfuric acid, polyvinyl alcohol, graphite paper, deionized water, Acetylene black, thiol protease, sodium thiocyanate, potassium thiocyanate, phenol, butanol, novolac resin containing polyethylene glycol; main instruments include electronic analytical balance, magnetic stirrer, electric heating constant temperature drying oven, tube resistance Furnace, plasma cleaner, vacuum filter, electrochemical workstation, X-ray diffractometer (XRD), scanning electron microscope, Raman spectrometer.

[0053] A preparation method of bean dregs-based nitrogen-boron co-doped porous carbon material is a one-step impregnation carbonization activation method, comprising the following steps:

[0054] (1) The bean dregs are boiled for 1 hour, fermented, washed and freeze-dried to form dry bean dregs, and ...

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Abstract

The invention provides a method for preparing a bean dregs-based nitrogen-boron co-doped porous carbon material. The method is a one-step impregnation carbonization activation method, and comprises the following steps: (1) pretreating bean dregs: boiling, fermenting, then adding a catalyst into the fermented bean dregs for catalysis, washing and then freeze-drying; (2) adding deionized water intothe pretreated bean dregs, adding an activator and a boron source, stirring and mixing, transferring into a culture dish, and putting into a drying oven for drying; (3) heat-treating the bean dregs treated in the step (2), soaking in an HCl solution after cooling, washing, and finally drying by microwave to obtain treated bean dregs; and (4) adding a binder and a pore forming agent into the treated bean dregs in the step (3), and mixing to form a bean dregs-based porous carbon material. According to the invention, the one-step impregnation carbonization activation method is adopted; and compared with the prior art, the one-step impregnation carbonization activation method has the advantages of simple method, low energy consumption and the like.

Description

technical field [0001] The invention relates to the technical field of material science, in particular to a method for preparing a bean dregs-based nitrogen-boron co-doped porous carbon material. Background technique [0002] Driven by rapid industrial development and increasing world population, energy shortage and environmental pollution have become two major problems hindering human development. Therefore, the development of efficient, stable, green and sustainable new energy conversion and storage devices can not only meet the needs of rapid social development but also alleviate the increasingly serious environmental problems. At present, among various energy storage devices, electrochemical energy storage devices are research hotspots, including lithium-ion batteries, nickel-metal hydride batteries, and supercapacitors. Supercapacitors have attracted worldwide attention because of their advantages such as fast charging speed, high safety, and no pollution. [0003] At...

Claims

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Application Information

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IPC IPC(8): C01B32/324C01B32/348H01G11/34H01G11/44H01G11/86
CPCH01G11/34H01G11/44H01G11/86C01B32/324C01B32/348Y02E60/13
Inventor 朱光张莉
Owner 宿州学院
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