Optimisation of supercapacitors using carbons with controlled nanotexture and nitrogen content
In order to optimize the performance of supercapacitors, the capacitance of the carbon materials used as electrodes was strictly related to their pores size and also to their redox properties. Well-sized carbons have been elaborated through a template technique using mesoporous silica. For a series...
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| Veröffentlicht in: | Electrochimica acta 2006-02, Vol.51 (11), p.2209-2214 |
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| container_title | Electrochimica acta |
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| creator | Frackowiak, E. Lota, G. Machnikowski, J. Vix-Guterl, C. Béguin, F. |
| description | In order to optimize the performance of supercapacitors, the capacitance of the carbon materials used as electrodes was strictly related to their pores size and also to their redox properties. Well-sized carbons have been elaborated through a template technique using mesoporous silica. For a series of template carbons, a perfect linear dependence has been found for the capacitance values versus the micropore volume determined by CO
2 adsorption. The redox properties of carbons were enhanced by substituting nitrogen for carbon up to ca. 7
wt.%. For carbons with similar nanotextural characteristics, the electrochemical measurements showed a proportional increase of the specific capacitance with the nitrogen content in acidic electrolyte. For an activated carbon from polyacrylonitrile with a specific surface area of only 800
m
2
g
−1, but with a nitrogen content of 7
wt.%, the capacitance reaches 160
F
g
−1, with very little fading during cycling. |
| doi_str_mv | 10.1016/j.electacta.2005.04.080 |
| format | Article |
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2 adsorption. The redox properties of carbons were enhanced by substituting nitrogen for carbon up to ca. 7
wt.%. For carbons with similar nanotextural characteristics, the electrochemical measurements showed a proportional increase of the specific capacitance with the nitrogen content in acidic electrolyte. For an activated carbon from polyacrylonitrile with a specific surface area of only 800
m
2
g
−1, but with a nitrogen content of 7
wt.%, the capacitance reaches 160
F
g
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2 adsorption. The redox properties of carbons were enhanced by substituting nitrogen for carbon up to ca. 7
wt.%. For carbons with similar nanotextural characteristics, the electrochemical measurements showed a proportional increase of the specific capacitance with the nitrogen content in acidic electrolyte. For an activated carbon from polyacrylonitrile with a specific surface area of only 800
m
2
g
−1, but with a nitrogen content of 7
wt.%, the capacitance reaches 160
F
g
−1, with very little fading during cycling.</description><subject>Applied sciences</subject><subject>Capacitors. Resistors. Filters</subject><subject>Carbon electrode</subject><subject>Electrical engineering. Electrical power engineering</subject><subject>Exact sciences and technology</subject><subject>Heteroatom</subject><subject>Nitrogen</subject><subject>Pseudocapacitance</subject><subject>Supercapacitor</subject><subject>Template carbon</subject><subject>Various equipment and components</subject><issn>0013-4686</issn><issn>1873-3859</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNqFkEtv1TAQhS1UJG4Lv4FsYJcwYyeOs6wqXlKlbmCL5Tjj4qvUDrbD49_jy61giTTSaDTfOaM5jL1E6BBQvjl2tJItplbHAYYO-g4UPGEHVKNohRqmC3YAQNH2Usln7DLnIwCMcoQD-3K3Ff_gsyk-hia6Ju8bJWs2Y32JKTd79uG-sSbNMeTmhy9fGxtDSXFdaWmCCbHQz7Inakyos6-bewp_GArlOXvqzJrpxWO_Yp_fvf1086G9vXv_8eb6trU9itJOk0ISdsGZi9EtqAYuLI69m4kLjpIDmlk6VHLGwS3cDJMUZFzfOz5PsxFX7PXZd0vx20656PqTpXU1geKeNZ8AUcFQwfEM2hRzTuT0lvyDSb80gj7lqY_6b576lKeGXtc8q_LV4wmTrVldMsH6_E8-SlD9dOKuzxzVf797SjpbT8HS4lP11Uv0_731G51nkjs</recordid><startdate>20060215</startdate><enddate>20060215</enddate><creator>Frackowiak, E.</creator><creator>Lota, G.</creator><creator>Machnikowski, J.</creator><creator>Vix-Guterl, C.</creator><creator>Béguin, F.</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20060215</creationdate><title>Optimisation of supercapacitors using carbons with controlled nanotexture and nitrogen content</title><author>Frackowiak, E. ; Lota, G. ; Machnikowski, J. ; Vix-Guterl, C. ; Béguin, F.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c413t-9981e3cd1b237fd18523c174fbe23216201ab6f186b15fd2a5963eaf44f2b9ba3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Applied sciences</topic><topic>Capacitors. Resistors. Filters</topic><topic>Carbon electrode</topic><topic>Electrical engineering. Electrical power engineering</topic><topic>Exact sciences and technology</topic><topic>Heteroatom</topic><topic>Nitrogen</topic><topic>Pseudocapacitance</topic><topic>Supercapacitor</topic><topic>Template carbon</topic><topic>Various equipment and components</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Frackowiak, E.</creatorcontrib><creatorcontrib>Lota, G.</creatorcontrib><creatorcontrib>Machnikowski, J.</creatorcontrib><creatorcontrib>Vix-Guterl, C.</creatorcontrib><creatorcontrib>Béguin, F.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Electrochimica acta</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Frackowiak, E.</au><au>Lota, G.</au><au>Machnikowski, J.</au><au>Vix-Guterl, C.</au><au>Béguin, F.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Optimisation of supercapacitors using carbons with controlled nanotexture and nitrogen content</atitle><jtitle>Electrochimica acta</jtitle><date>2006-02-15</date><risdate>2006</risdate><volume>51</volume><issue>11</issue><spage>2209</spage><epage>2214</epage><pages>2209-2214</pages><issn>0013-4686</issn><eissn>1873-3859</eissn><coden>ELCAAV</coden><abstract>In order to optimize the performance of supercapacitors, the capacitance of the carbon materials used as electrodes was strictly related to their pores size and also to their redox properties. Well-sized carbons have been elaborated through a template technique using mesoporous silica. For a series of template carbons, a perfect linear dependence has been found for the capacitance values versus the micropore volume determined by CO
2 adsorption. The redox properties of carbons were enhanced by substituting nitrogen for carbon up to ca. 7
wt.%. For carbons with similar nanotextural characteristics, the electrochemical measurements showed a proportional increase of the specific capacitance with the nitrogen content in acidic electrolyte. For an activated carbon from polyacrylonitrile with a specific surface area of only 800
m
2
g
−1, but with a nitrogen content of 7
wt.%, the capacitance reaches 160
F
g
−1, with very little fading during cycling.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.electacta.2005.04.080</doi><tpages>6</tpages></addata></record> |
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| ispartof | Electrochimica acta, 2006-02, Vol.51 (11), p.2209-2214 |
| issn | 0013-4686 1873-3859 |
| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Applied sciences Capacitors. Resistors. Filters Carbon electrode Electrical engineering. Electrical power engineering Exact sciences and technology Heteroatom Nitrogen Pseudocapacitance Supercapacitor Template carbon Various equipment and components |
| title | Optimisation of supercapacitors using carbons with controlled nanotexture and nitrogen content |
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