A preparation method of iron/nitrogen co-doped ordered mesoporous carbon material
A co-doping and mesoporous carbon technology, applied in the field of mesoporous carbon materials, can solve the problems of cumbersome hard template experiment process, complex and lengthy process, poor fusion between precursor and template, etc., and achieve high yield, simple experimental process, The effect of uniform pore size
Active Publication Date: 2017-09-05
QINGDAO UNIV OF SCI & TECH
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Problems solved by technology
[0005] However, the existing mesoporous carbon material preparation methods have complex and lengthy template preparation process, cumbersome experimental process due to the hard template removal process, and poor fusion between the precursor and the template. Therefore, there is an urgent need for a simple and conditional Preparation method of controllable mesoporous carbon material
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Embodiment 1
[0047] (1) Preparation of carbon source-phenolic resin: Weigh 8 g of phenol and melt it in a beaker at 41 °C, add 1.7 g of NaOH aqueous solution (20 wt%) dropwise, stir for 10 min, add dropwise, 14.16 g of formaldehyde solution (37%), heated to 70 °C for 1 h, 0.6 mol / L hydrochloric acid solution to balance the pH to neutral, and 45 °C rotary steamed for 1 h to obtain phenolic resin, which was prepared into 20 wt% phenolic resin in absolute ethanol solution ;
[0048] (2) Dissolve 1.6 g of surfactant F127 in 8 g of absolute ethanol, slowly add 1 g of hydrochloric acid solution (0.2M), stir at 40 °C for 1 h, add 0.2 g of urea, 2.08 g of tetraethyl orthosilicate (TEOS), 5 g of phenolic resin in absolute ethanol solution (20 wt%), continue stirring for 30 min, 1 ml of pyrrole monomer (density 0.967g / ml), 15 ml of ferric chloride solution (concentration 0.289 M) Slowly add dropwise to the mixed solution, keep the temperature and stir for 2h. Place the above mixed solution in a wa...
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The invention provides a method for preparing an iron / nitrogen-codoped ordered mesoporous carbon material. The method comprises the following steps: taking a triblock copolymer F127 as a template, under acidic condition, a silicon source-tetraethoxysilane, a carbon source-phenolic resin, a nitrogen source 1-urea, a nitrogen source 2-pyrroles monomer and an iron source-ferric trichloride are added, the micelle having a three-dimensional porous structure is synthesized with one step by a solvent volatilization induction self-assembly method, and the ordered mesoporous carbon material is obtained through high temperature carbonization and hydrofluoric acid etching. The method of the ordered mesoporous carbon material has the advantages of simple operation, low reaction temperature, and controllable condition, the prepared ordered mesoporous carbon material has the ordered three-dimensional tunnel structure, high specific surface area and excellent electrochemistry performance, and has good application prospect in the field of electrochemistry.
Description
technical field [0001] The invention belongs to the technical field of mesoporous carbon materials, and in particular relates to a preparation method of iron / nitrogen co-doped ordered mesoporous carbon materials. Background technique [0002] Mesoporous carbon is a new type of non-silicon-based mesoporous material, due to its large surface area (up to 2500m 2 / g), pore volume (2.25 cm 3 / g) and good conductivity, it has a good application prospect in the fields of catalyst carrier, hydrogen storage material, electrode material and so on. Mesoporous carbon materials can be used in the preparation of electric double layer capacitors. The charge storage of this type of electric double layer capacitor is generally higher than the capacitance after the assembly of metal oxide particles, and is also higher than the common metal oxide double layer on the market. capacitor material. At the same time, the high specific surface area, specific pore size, good conductivity and high t...
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IPC IPC(8): C01B32/05
CPCC01P2004/04C01P2006/12C01P2006/14C01P2006/40
Inventor 隋丽娜于立岩康洪权董红周董立峰
Owner QINGDAO UNIV OF SCI & TECH