Boron-nitrogen-phosphorus ternary doped metal-free carbon material as well as preparation method and application thereof

A metal-free, carbon-free technology, applied in the preparation/purification of carbon, electrical components, battery electrodes, etc., can solve the problem that the research on the capacitance performance of ternary doped carbon materials has not yet been reported, and achieve the improvement of catalytic performance and electrochemical performance. Capacitance performance, good electrochemical capacitance performance, the effect of mature technology

Inactive Publication Date: 2020-09-01
SHANXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the research on non-metal doped carbon materials in capacitors is mainly focused on the one-element and binary doping, and the research on the capacitive properties of ternary-doped carbon materials has not been reported yet.

Method used

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  • Boron-nitrogen-phosphorus ternary doped metal-free carbon material as well as preparation method and application thereof
  • Boron-nitrogen-phosphorus ternary doped metal-free carbon material as well as preparation method and application thereof
  • Boron-nitrogen-phosphorus ternary doped metal-free carbon material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Put 15.33mmol of phenol, 2.18mmol of hexachlorotrimeric phosphazene, 10.19mmol of formaldehyde, 4.10mmol of melamine and 2.35mmol of boric acid into a conical flask in sequence, add 6mL of distilled water and 28mL of ethanol, stir well at 50°C, and react for 24h; React in a hydrothermal kettle at 115°C for 24 hours; continue to raise the temperature to 200°C at a rate of 10°C / min in the oxidation furnace and keep the temperature for 5 hours and then drop to room temperature; The heating rate was raised to 600°C and kept at a constant temperature for 3 hours; after cooling down, the sample was taken out, washed 3-5 times with deionized water, and dried to obtain a boron-nitrogen-phosphorus ternary doped metal-free carbon material, numbered BNPC-1. The appearance of the obtained carbon material is black powder, and it is tested by ICP-AES (inductively coupled atomic emission spectrometer) and N 2 The composition and specific surface area of ​​the carbon material were anal...

Embodiment 2

[0046] Put 16.27mmol hydroquinone, 3.61mmol hexamethylphosphoric triamide, 15.44mmol formaldehyde, 4.66mmol melamine and 4.28mmol boric acid in sequence in a conical flask, add 6mL distilled water and 28mL ethanol, stir fully at 50°C, and react for 18h; React in a hydrothermal kettle at 115°C for 20 hours; continue to heat up to 200°C in an oxidation furnace at a rate of 5°C / min and keep the temperature for 6 hours and then drop to room temperature; The heating rate per minute was raised to 800°C and kept at a constant temperature for 3 hours; after cooling down, the sample was taken out, washed 3-5 times with deionized water, and dried to obtain a boron-nitrogen-phosphorus ternary doped metal-free carbon material, numbered BNPC-2. The appearance of the obtained carbon material is black powder, and it is tested by ICP-AES (inductively coupled atomic emission spectrometer) and N 2 The composition and specific surface area of ​​the carbon material were analyzed by adsorption and...

Embodiment 3

[0048] Put 15.33mmol of aminophenol, 6.88mmol of sodium dihydrogen phosphate, 15.12mmol of formaldehyde, 6.01mmol of melamine and 3.61mmol of boron chloride into a conical flask in sequence, add 34mL of chloroform, stir thoroughly at 80°C, and react for 10h; React in the kettle at 180°C for 12h; continue to heat up to 180°C in the oxidation furnace at a rate of 1°C / min and keep the temperature for 8h and then drop to room temperature; The heating rate was increased to 900°C and the temperature was kept constant for 2 hours; after cooling down, the sample was taken out, washed 3-5 times with deionized water, and dried to obtain a boron-nitrogen-phosphorous ternary doped metal-free carbon material, numbered BNPC-3. The appearance of the obtained carbon material is black powder, and it is tested by ICP-AES (inductively coupled atomic emission spectrometer) and N 2 The composition and specific surface area of ​​the carbon material were analyzed by adsorption and desorption tests. ...

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Abstract

The invention belongs to the field of energy materials and electrochemical catalysis and energy storage, and aims to provide a boron-nitrogen-phosphorus ternary doped metal-free carbon material as well as a preparation method and application thereof. The boron-nitrogen-phosphorus ternary doped metal-free carbon material is obtained by taking a phenolic aromatic hydrocarbon compound or a derivativethereof as a carbon source, a phosphorus-containing organic matter or inorganic matter as a phosphorus source, a nitrogen-containing organic matter as a nitrogen source and a boron-containing organicmatter or inorganic matter as a boron source; after sufficient polymerization by a solvothermal method, oxidizing at a low temperature of 100-350 DEG C, and roasting at a high temperature of 600-1200DEG C under the protection of N2 atmosphere. The carbon material is wide in raw material source, and the preparation method is mature in process, is simple to operate, and is convenient for the large-scale production.

Description

technical field [0001] The invention belongs to the fields of energy materials, electrochemical catalysis and energy storage, and relates to a boron-nitrogen-phosphorous ternary doped metal-free carbon material and its preparation method and application, and in particular to a fuel cell under alkaline conditions ( Metal-air battery) cathode oxygen reduction reaction and boron-nitrogen-phosphorus ternary doped metal-free carbon material in the working electrode of capacitor and its preparation method. Background technique [0002] Fuel cells have high energy conversion efficiency, high energy density and power density, and are one of the most promising power batteries in recent years. Among them, the proton exchange membrane fuel cell can directly convert the chemical energy in hydrogen into electrical energy, and the reaction product is water (electrode reaction: 2H 2 (anode) + O 2 (Cathode) → 2H 2 O + electric energy), which has many advantages such as environmental prot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/96H01G11/44H01G11/42H01G11/34C01B32/05
CPCC01B32/05H01G11/34H01G11/42H01G11/44H01M4/96Y02E60/50
Inventor 赵江红甯尚学覃宇鹏周玮
Owner SHANXI UNIV
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