DC Field | Value | Language |
---|---|---|
dc.contributor.author | Hwang, Byunghoon | ko |
dc.contributor.author | Yang, Jeong Woo | ko |
dc.contributor.author | Kim, Dohyeun | ko |
dc.contributor.author | Yun, Won Chan | ko |
dc.contributor.author | Lee, Jae Woo | ko |
dc.date.accessioned | 2023-02-03T01:00:11Z | - |
dc.date.available | 2023-02-03T01:00:11Z | - |
dc.date.created | 2023-02-03 | - |
dc.date.created | 2023-02-03 | - |
dc.date.created | 2023-02-03 | - |
dc.date.issued | 2023-02 | - |
dc.identifier.citation | ELECTROCHIMICA ACTA, v.442 | - |
dc.identifier.issn | 0013-4686 | - |
dc.identifier.uri | http://hdl.handle.net/10203/304986 | - |
dc.description.abstract | Aqueous redox electrochemical capacitors (redox ECs) generally suffer from low energy density and uncontrolled cross-diffusion of soluble redox components, causing serious self-discharge and capacity fade. We have designed a membraneless potassium bromide electrochemical capacitor (ML-PBEC) single cell generating high energy density with reduced self-discharge. From the perspective of CO2 utilization, highly porous carbon with a hierarchical structure was synthesized from CO2 gas and the change of the electrochemical performance by doping nitrogen on the CO2-derived carbon materials was investigated. Using the synthesized carbon as electrodes with a Br−/Br3− redox active aqueous electrolyte, the designed ML-PBEC single cell produced enhanced energy density due to suppressed cross-diffusion of soluble bromine molecules through electrostatic interaction between the protons of N-doped sites and polybromide anions even without membrane. The designed single cell provided a high energy density equivalent to the highest energy density of membrane contained aqueous electrochemical capacitors, 14.3 Wh kg−1 at 2 A g−1 over 10,000 cycles. | - |
dc.language | English | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.title | Redox enhanced membraneless electrochemical capacitor with CO2-derived hierarchical porous carbon electrodes | - |
dc.type | Article | - |
dc.identifier.wosid | 000922153800001 | - |
dc.identifier.scopusid | 2-s2.0-85146280663 | - |
dc.type.rims | ART | - |
dc.citation.volume | 442 | - |
dc.citation.publicationname | ELECTROCHIMICA ACTA | - |
dc.identifier.doi | 10.1016/j.electacta.2023.141871 | - |
dc.contributor.localauthor | Lee, Jae Woo | - |
dc.contributor.nonIdAuthor | Hwang, Byunghoon | - |
dc.contributor.nonIdAuthor | Kim, Dohyeun | - |
dc.contributor.nonIdAuthor | Yun, Won Chan | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | CO2 utilization | - |
dc.subject.keywordAuthor | Redox-EDLC | - |
dc.subject.keywordAuthor | Aqueous electrochemical capacitor | - |
dc.subject.keywordAuthor | Redox electrolyte | - |
dc.subject.keywordAuthor | Single cell design | - |
dc.subject.keywordPlus | DOUBLE-LAYER CAPACITOR | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | SUPERCAPACITOR | - |
dc.subject.keywordPlus | NITROGEN | - |
dc.subject.keywordPlus | CO2 | - |
dc.subject.keywordPlus | ELECTROLYTES | - |
dc.subject.keywordPlus | COMPOSITES | - |
dc.subject.keywordPlus | CELLULOSE | - |
dc.subject.keywordPlus | DIOXIDE | - |
dc.subject.keywordPlus | GASES | - |
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