Preparation method of N (nitrogen)-enriched activated carbon electrode

An activated carbon and electrode technology, which is applied in the field of preparation of N-rich activated carbon electrodes, can solve the problems of low yield, high energy consumption, and limited commercialization process.

Inactive Publication Date: 2012-02-22
BEIJING FORESTRY UNIVERSITY
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Problems solved by technology

However, these methods have disadvantages such as high cost of precursors, low yield, and high energy consumption.
These shortc

Method used

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Embodiment Construction

[0004] The present invention is realized according to the following process:

[0005] 1. Use waste fiberboard as raw material (containing about 10% urea-formaldehyde glue), put it into a carbonization furnace, heat up at a rate of 10°C / min, rise from room temperature to 500°C, and carbonize for one hour;

[0006] 2. Take out the carbonized material, prepare it into 40-60 mesh powder, and fully impregnate the carbonized material with KOH (KOH is made into a 50% solution in advance) at a ratio of 3:1 for 16 hours. Put it in an activation furnace and activate it at 800°C for 1 hour to prepare activated carbon. (Specific surface area: 1658m 2 / g; iodine value: 1413mg / g, methylene blue: 13.4mL / 0.1g, pore volume: 0.93cm 3 / g, micropore volume: 0.63cm 3 / g)

[0007] 3. Boil the prepared activated carbon with 0.5M hydrochloric acid for 0.5 hour, then wash with distilled water until neutral, put into oven and dry to obtain activated carbon (the performance of activated carbon is ch...

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Abstract

The invention provides a preparation technology of an N (nitrogen)-enriched activated carbon electrode, and belongs to the technical field of chemical processing of forestry biomass resource. In the preparation technology, N-enriched activated carbon-an electrode material used for an electric double layer capacitor (EDLC) as a new energy is prepared from waste artificial boards containing amino resin through carbonization, activation and after-treatment processes. The preparation technology has the following advantages: 1. the waste artificial boards are taken as raw materials to be prepared into the N-enriched activated carbon electrode, thus the method is simple and the cost is low; and 2. the waste artificial boards are taken as the raw materials, which is beneficial for cyclic utilization of wooden resource and meanwhile lowers the disposal expense of environmental rubbish.

Description

technical field [0001] The invention relates to a preparation technology of an N-rich activated carbon electrode, which uses discarded N-rich man-made panels to prepare N-rich activated carbon through carbonization and activation processes—an electrode material for new energy-electric double-layer capacitors. It belongs to the technical field of chemical processing of material resources produced by forests. The present invention makes use of the N-rich characteristics of adhesives that mostly contain urea-formaldehyde resins and melamine-formaldehyde resins in waste wood-based panels to prepare N-rich activated carbon electrode materials, which not only provides a basis for preparing N-rich activated carbon for electric double-layer capacitors A cheap raw material also expands a new way for the recycling of waste wood-based panels. technical background [0002] Activated carbon with rich sources and developed pore structure is currently the only commercial electrode materia...

Claims

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Application Information

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IPC IPC(8): H01G9/058H01G11/86
Inventor 金小娟于志明李建章王明枝张铭洋张骥
Owner BEIJING FORESTRY UNIVERSITY
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