Metal monatomic/N co-doped 3D (Three Dimensional) structure nano porous carbon and preparation method thereof
A nanoporous carbon, co-doping technology, applied in nanocarbon, nanotechnology for materials and surface science, nanotechnology, etc., to achieve the effects of high nitrogen content, short reaction time, and simple preparation method
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Embodiment 1
[0048] Example 1: Monoatomic iron / N co-doped 3D structure nanoporous carbon, the schematic diagram of its preparation process is shown in the figure:
[0049] First, dissolve 0.5 g of cellulose in 10.0 g of 1-allyl-3-methylimidazole to form a uniform solution; then add a certain amount of 2-bromoisobutyryl bromide and then proceed to the heating reaction, wherein the halogenation reagent 2 - The molar ratio of bromoisobutyryl bromide to the hydroxyl group in cellulose is 0.5, and the reaction solution is repeatedly precipitated and purified to obtain brominated cellulose polymer;
[0050] Dissolve 10mg of brominated cellulose polymer in N,N-dimethylformamide, then add 20ml of acrylonitrile, 10mg of copper bromide and 10mg of 2,2'-bipyridine, deoxygenate with nitrogen, and freeze with liquid nitrogen , add 30 mg of cuprous bromide, heat up to 60°C and polymerize for 5-12 hours, add styrene monomer, continue the polymerization for 8-24 hours, measure the monomer conversion rate ...
Embodiment 2
[0057] Example 2: Monoatomic Fe / N co-doped 3D structured nanoporous carbon
[0058] First dissolve 0.5g of cellulose in 10.0g of 1-ethyl-3-methylimidazolium bromide to form a uniform solution; add a certain amount of 2-bromo-2-methylpropionyl chloride and then carry out the temperature rise reaction, wherein The molar ratio of the halogenation reagent 2-bromo-2-methylpropionyl chloride to the hydroxyl group in the cellulose is 1, and the reaction solution is repeatedly precipitated and purified to obtain a brominated cellulose polymer;
[0059] Dissolve 200 mg of brominated cellulose polymer in dimethyl sulfoxide, then add 20 ml of acrylonitrile, 3 mg of copper chloride and 200 mg of 4,4'-dinonyl-2,2'-bipyridine, and remove the After oxygen and liquid nitrogen freezing, add 30 mg of cuprous chloride, heat up to 60 ℃, polymerize for 5-12 hours, add styrene monomer, continue polymerization for 8-24 hours, and measure the monomer by nuclear magnetic resonance (NMR) After the con...
Embodiment 3
[0063] Example 3: Single atom cobalt / N co-doped 3D structured nanoporous carbon
[0064] First, dissolve 0.5g of cellulose in 10.0g of 1-ethyl-3-methylimidazolium bromide to form a uniform solution; add a certain amount of 4-chlorobutyryl chloride and then proceed to the heating reaction, in which the halogenation reagent 4-chlorobutyryl The molar ratio of butyryl chloride to the hydroxyl group in the cellulose is 2, and the reaction solution is repeatedly precipitated and purified to obtain a chlorinated cellulose polymer;
[0065] Dissolve 200 mg of chlorinated cellulose polymer in dimethyl sulfoxide, then add 20 ml of acrylonitrile, 3 mg of copper chloride and 200 mg of 4,4'-dinonyl-2,2'-bipyridine, and remove the After oxygen and liquid nitrogen freezing, add 27 mg of cuprous chloride, heat up to 60 ℃, polymerize for 5-12 hours, add styrene monomer, continue polymerization for 8-24 hours, and measure the monomer by nuclear magnetic resonance (NMR) After the conversion rat...
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