High-Power Hydro-Actuators Fabricated from Biomimetic Carbon Nanotube Coiled Yarns with Fast Electrothermal Recovery
DC Field | Value | Language |
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dc.contributor.author | Son, Wonkyeong | - |
dc.contributor.author | Lee, Jae Myeong | - |
dc.contributor.author | Kim, Shi Hyeong | - |
dc.contributor.author | Kim, Hyeon Woo | - |
dc.contributor.author | Cho, Sung Beom | - |
dc.contributor.author | Suh, Dongseok | - |
dc.contributor.author | Chun, Sungwoo | - |
dc.contributor.author | Choi, Changsoon | - |
dc.date.accessioned | 2022-06-10T20:40:38Z | - |
dc.date.available | 2022-06-10T20:40:38Z | - |
dc.date.created | 2022-06-09 | - |
dc.date.issued | 2022-03-23 | - |
dc.identifier.issn | 1530-6984 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/141897 | - |
dc.description.abstract | Bioinspired yarn/fiber structured hydro-actuators have recently attracted significant attention. However, most water-driven mechanical actuators are unsatisfactory because of the slow recovery process and low full-time power density. A rapidly recoverable high-power hydro-actuator is reported by designing biomimetic carbon nanotube (CNT) yarns. The hydrophilic CNT (HCNT) coiled yarn was prepared by storing pre-twist into CNT sheets and subsequent electrochemical oxidation (ECO) treatment. The resulting yarn demonstrated structural stability even when one end was cut off without the possible loss of pre-stored twists. The HCNT coiled yarn actuators provided maximal contractile work of 863 J/kg at 11.8 MPa stress when driven by water. Moreover, the recovery time of electrically heated yarns at a direct current voltage of 5 V was 95% shorter than that of neat yarns without electric heating. Finally, the electrothermally recoverable hydro-actuators showed a high actuation frequency (0.17 Hz) and full-time power density (143.8 W/kg). | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.subject | DRIVEN | - |
dc.subject | MOISTURE | - |
dc.subject | WATER | - |
dc.subject | FIBERS | - |
dc.subject | ENERGY | - |
dc.title | High-Power Hydro-Actuators Fabricated from Biomimetic Carbon Nanotube Coiled Yarns with Fast Electrothermal Recovery | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Chun, Sungwoo | - |
dc.identifier.doi | 10.1021/acs.nanolett.2c00250 | - |
dc.identifier.scopusid | 2-s2.0-85126093061 | - |
dc.identifier.wosid | 000795036100040 | - |
dc.identifier.bibliographicCitation | NANO LETTERS, v.22, no.6, pp.2470 - 2478 | - |
dc.relation.isPartOf | NANO LETTERS | - |
dc.citation.title | NANO LETTERS | - |
dc.citation.volume | 22 | - |
dc.citation.number | 6 | - |
dc.citation.startPage | 2470 | - |
dc.citation.endPage | 2478 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | DRIVEN | - |
dc.subject.keywordPlus | MOISTURE | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordPlus | FIBERS | - |
dc.subject.keywordPlus | ENERGY | - |
dc.subject.keywordAuthor | power density | - |
dc.subject.keywordAuthor | hydro-actuator | - |
dc.subject.keywordAuthor | biomimetics | - |
dc.subject.keywordAuthor | carbon nanotube yarn | - |
dc.subject.keywordAuthor | electrothermal recovery | - |
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