Three-dimensional hierarchically porous micro sponge-ball comprising anatase TiO2 nanodots and nitrogen-doped graphitic carbon as anodes for ultra-stable lithium-ion batteries
DC Field | Value | Language |
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dc.contributor.author | Lee, Jae Seob | - |
dc.contributor.author | Ka, Hye Seon | - |
dc.contributor.author | Saroha, Rakesh | - |
dc.contributor.author | Kang, Yun Chan | - |
dc.contributor.author | Kang, Dong-Won | - |
dc.contributor.author | Cho, Jung Sang | - |
dc.date.accessioned | 2023-10-01T09:40:27Z | - |
dc.date.available | 2023-10-01T09:40:27Z | - |
dc.date.issued | 2023-08 | - |
dc.identifier.issn | 2352-152X | - |
dc.identifier.issn | 2352-1538 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/67902 | - |
dc.description.abstract | Hierarchically porous three-dimensional micro sponge-balls comprising highly conductive nitrogen-doped graphitic carbon (NGC) and anatase-type TiO2 nanodots (TiO2@NGC MSB) are synthesized using spray pyrolysis technique followed by heat treatment. The as-sprayed powders obtained after spray pyrolysis consist of polystyrene (PS) nanobeads-derived macropores and anatase TiO2 nanodots embedded in an amorphous carbon (AC)-NGC carbon matrix (TiO2@NGC-AC MSB). The subsequent heat treatment of the as-sprayed powders at 300 °C resulted in the formation of additional micropores by selective removal of the AC into gaseous products to form TiO2@NGC MSB. The obtained hierarchically porous and highly conductive architecture guarantees effective electrolyte infiltration inside the electrode, enhanced Li-ion diffusion, and faster charge transfer during the redox reactions. Benefited from the structural merits, the TiO2@NGC MSB anode exhibits remarkable electrochemical performance compared to those of TiO2@NGC-AC MSB and filled-type TiO2 anodes. A reasonable discharge capacity of 105 mA h g−1 at a high current density of 10.0 A g−1 and exceptional cycling performance (219 mA h g−1 with 0.0006 % decay rate after 2000 cycles at 2.0 A g−1 and 160 mA h g−1 with 0.003 % decay rate after 5000 cycles at 3.0 A g−1) are obtained. © 2023 Elsevier Ltd | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | Elsevier Ltd | - |
dc.title | Three-dimensional hierarchically porous micro sponge-ball comprising anatase TiO2 nanodots and nitrogen-doped graphitic carbon as anodes for ultra-stable lithium-ion batteries | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.est.2023.107396 | - |
dc.identifier.bibliographicCitation | Journal of Energy Storage, v.66 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.wosid | 000989611700001 | - |
dc.identifier.scopusid | 2-s2.0-85153486711 | - |
dc.citation.title | Journal of Energy Storage | - |
dc.citation.volume | 66 | - |
dc.type.docType | Article | - |
dc.publisher.location | 네델란드 | - |
dc.subject.keywordAuthor | lithium-ion batteries | - |
dc.subject.keywordAuthor | Nitrogen-doped carbon | - |
dc.subject.keywordAuthor | Spray pyrolysis | - |
dc.subject.keywordAuthor | Three-dimensional micro sponge-ball | - |
dc.subject.keywordAuthor | Titanium dioxide anode | - |
dc.subject.keywordPlus | ELECTROCHEMICAL PERFORMANCES | - |
dc.subject.keywordPlus | COMPOSITE NANOFIBERS | - |
dc.subject.keywordPlus | CATHODE MATERIAL | - |
dc.subject.keywordPlus | HOLLOW | - |
dc.subject.keywordPlus | MICROSPHERES | - |
dc.subject.keywordPlus | CAPACITY | - |
dc.subject.keywordPlus | ELECTRODE | - |
dc.relation.journalResearchArea | Energy & Fuels | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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