Nitrogen-doped spherical porous carbon and preparation method and application thereof
The invention provides nitrogen-doped spherical porous carbon and a preparation method and application thereof. The preparation method comprises the steps that coal liquefied asphalt is sulfonated andhydrated in sequence to obtain soluble sulfonated asphalt; the soluble sulfonated asphalt, water and...
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| creator | LI KEJIAN SHU GEPING CHANG HONGYAN ZHANG XUWEN CHENG SHIFU XIN FANWEN XIANG NING |
| description | The invention provides nitrogen-doped spherical porous carbon and a preparation method and application thereof. The preparation method comprises the steps that coal liquefied asphalt is sulfonated andhydrated in sequence to obtain soluble sulfonated asphalt; the soluble sulfonated asphalt, water and imidazolium cation type ionic liquid are mixed to obtain a mixed solution, wherein the imidazoliumcation type ionic liquid is imidazolium cation bromide salt or chlorine salt; the mixed solution is spray-dried to obtain spherical asphalt particles; under the protection of nitrogen or an inert gas, the spherical asphalt particles are carbonized and activated in sequence to obtain the nitrogen-doped spherical porous carbon. The nitrogen-doped spherical porous carbon prepared by using the imidazolium cation bromide salt or chloride salt has a higher nitrogen content; the preparation technology adopting a spray drying technology has the advantages that the steps are simple, the continuous operability is strong, the pr |
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The preparation method comprises the steps that coal liquefied asphalt is sulfonated andhydrated in sequence to obtain soluble sulfonated asphalt; the soluble sulfonated asphalt, water and imidazolium cation type ionic liquid are mixed to obtain a mixed solution, wherein the imidazoliumcation type ionic liquid is imidazolium cation bromide salt or chlorine salt; the mixed solution is spray-dried to obtain spherical asphalt particles; under the protection of nitrogen or an inert gas, the spherical asphalt particles are carbonized and activated in sequence to obtain the nitrogen-doped spherical porous carbon. 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The preparation method comprises the steps that coal liquefied asphalt is sulfonated andhydrated in sequence to obtain soluble sulfonated asphalt; the soluble sulfonated asphalt, water and imidazolium cation type ionic liquid are mixed to obtain a mixed solution, wherein the imidazoliumcation type ionic liquid is imidazolium cation bromide salt or chlorine salt; the mixed solution is spray-dried to obtain spherical asphalt particles; under the protection of nitrogen or an inert gas, the spherical asphalt particles are carbonized and activated in sequence to obtain the nitrogen-doped spherical porous carbon. The nitrogen-doped spherical porous carbon prepared by using the imidazolium cation bromide salt or chloride salt has a higher nitrogen content; the preparation technology adopting a spray drying technology has the advantages that the steps are simple, the continuous operability is strong, the pr</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BASIC ELECTRIC ELEMENTS CAPACITORS CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS THEREOF DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY ELECTRICITY HUMAN NECESSITIES HYGIENE INORGANIC CHEMISTRY MEDICAL OR VETERINARY SCIENCE METALLURGY NON-METALLIC ELEMENTS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING |
| title | Nitrogen-doped spherical porous carbon and preparation method and application thereof |
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