DC Field | Value | Language |
---|---|---|
dc.contributor.author | Wang, Feng | ko |
dc.contributor.author | Cheong, Jun Young | ko |
dc.contributor.author | He, Qiu | ko |
dc.contributor.author | Duan, Gaigai | ko |
dc.contributor.author | He, Shuijian | ko |
dc.contributor.author | Zhang, Lin | ko |
dc.contributor.author | Zhao, Yan | ko |
dc.contributor.author | Kim, Il-Doo | ko |
dc.contributor.author | Jiang, Shaohua | ko |
dc.date.accessioned | 2021-05-25T05:30:06Z | - |
dc.date.available | 2021-05-25T05:30:06Z | - |
dc.date.created | 2021-05-25 | - |
dc.date.created | 2021-05-25 | - |
dc.date.created | 2021-05-25 | - |
dc.date.issued | 2021-06 | - |
dc.identifier.citation | CHEMICAL ENGINEERING JOURNAL, v.414 | - |
dc.identifier.issn | 1385-8947 | - |
dc.identifier.uri | http://hdl.handle.net/10203/285317 | - |
dc.description.abstract | Keeping outstanding electrochemical performance under high mass loading is critical to develop functional thick electrodes. Here, we report a high phosphorus-doped wood-derived carbon thick electrode for supercapacitor via phytic acid treatment, which can form hydrogen bonds with cellulose molecules in the wood. The content of phosphorus reaches up to 9.24 at% in carbonized wood with P-doping (CW-P-9.24), higher than most previously reported P-doped carbonaceous materials. CW-P-9.24 electrode (800 μm, 17.17 mg cm−2) exhibits greatly improved electrochemical performance, especially in energy density and cyclic stability. Significantly, the symmetrical supercapacitor device exhibits high areal and specific capacitance of 4.7 F cm−2 and 206.5 F g−1 at 1.0 mA cm−2 with prominent retention of 90.5% through the long-term cycling at 20 mA cm−2 for 20,000 cycles, and 0.94 mW h cm−2 (41.2 Wh kg−1) at power density of 0.6 mW cm−2 (26.3 W kg−1), and possesses excellent volumetric capacitance and energy density of 29.3 F cm−3 and 5.8 Wh cm−3, respectively. The outstanding performance can be attributed to the excellent hierarchical structure, low tortuosity, and high phosphorus doping with fast accessible channels at high current density. The extraordinary performance of CW-P has been elucidated by density functional theory calculations, which confirm the enhanced activity by P-doping. These results demonstrate that the CW-P electrode is promising for practical application in energy storage devices and encourage more investigations for thick electrode. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.title | Phosphorus-doped thick carbon electrode for high-energy density and long-life supercapacitors | - |
dc.type | Article | - |
dc.identifier.wosid | 000641327500002 | - |
dc.identifier.scopusid | 2-s2.0-85100692217 | - |
dc.type.rims | ART | - |
dc.citation.volume | 414 | - |
dc.citation.publicationname | CHEMICAL ENGINEERING JOURNAL | - |
dc.identifier.doi | 10.1016/j.cej.2021.128767 | - |
dc.contributor.localauthor | Kim, Il-Doo | - |
dc.contributor.nonIdAuthor | Wang, Feng | - |
dc.contributor.nonIdAuthor | He, Qiu | - |
dc.contributor.nonIdAuthor | Duan, Gaigai | - |
dc.contributor.nonIdAuthor | He, Shuijian | - |
dc.contributor.nonIdAuthor | Zhang, Lin | - |
dc.contributor.nonIdAuthor | Zhao, Yan | - |
dc.contributor.nonIdAuthor | Jiang, Shaohua | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Thick electrode | - |
dc.subject.keywordAuthor | Wood | - |
dc.subject.keywordAuthor | Phytic acid | - |
dc.subject.keywordAuthor | Phosphorus-doping | - |
dc.subject.keywordAuthor | Supercapacitor | - |
dc.subject.keywordPlus | FLEXIBLE SUPERCAPACITORS | - |
dc.subject.keywordPlus | CLOTH ELECTRODE | - |
dc.subject.keywordPlus | LITHIUM | - |
dc.subject.keywordPlus | STORAGE | - |
dc.subject.keywordPlus | ACTIVATION | - |
dc.subject.keywordPlus | MECHANISMS | - |
dc.subject.keywordPlus | NITROGEN | - |
dc.subject.keywordPlus | DESIGN | - |
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