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dc.contributor.author위정재-
dc.date.accessioned2022-11-24T01:06:25Z-
dc.date.available2022-11-24T01:06:25Z-
dc.date.issued2019-10-
dc.identifier.citationNANO ENERGY, v. 66, article no. 104158en_US
dc.identifier.issn2211-2855; 2211-3282en_US
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S2211285519308651?via%3Dihuben_US
dc.identifier.urihttps://repository.hanyang.ac.kr/handle/20.500.11754/177326-
dc.description.abstractIn the periodic table, halogenic elements have a larger electron affinity (EA = −270~−349 kJ/mol) than any other group, allowing them to accommodate extra electrons for triboelectric energy harvesting. However, because halogenic elements are not homopolymerizable, carbon (EA = −122 kJ/mol)-based polymers (i.e. PTFE, PVDF) are often employed for structural use and mechanical integrity at the expense of reduced electron affinity, intrinsically sacrificing triboelectric energy harvesting. Herein, we report the first example of triboelectric energy harvesting with sulfur backbone-based inorganic polymers synthesized via inverse-vulcanization process of elemental sulfur, a by-product of petroleum refining process. Fluorinated polymeric sulfur demonstrated 6-fold and 3-fold increase in triboelectric energy outputs in voltage and currents respectively in comparison with commercial PTFE film. Such high energy harvesting was achieved by high electron affinity of sulfur (−200 kJ/mol) and by its hypervalency via expanded-octet which provided coordination of two additional bonds with halogens compared to carbon. The triboelectric open-circuit voltage output reached 1366 V and demonstrated direct powering of 630 LEDs under the minimal force of ~30 N. This yellow chemistry-based molecular engineering paves a way for a new class of triboelectric materials toward low-cost, eco-friendly, and scalable triboelectric energy harvesting applications.en_US
dc.description.sponsorshipThis work was supported by the Asian Office of Aerospace Research and Development (FA2386-18-1-4103) of the United States, National Research Foundation (2017R1D1A1B03034749), and Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea (20164010201070).en_US
dc.languageenen_US
dc.publisherELSEVIER SCIENCE BVen_US
dc.subjectTriboelectric energy harvesting; Electron affinity; Hypervalency; Yellow chemistry; Inverse vulcanization; Surface modificationen_US
dc.titleRational Molecular Design of Polymeric Materials Toward Efficient Triboelectric Energy Harvestingen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.nanoen.2019.104158en_US
dc.relation.journalNANO ENERGY-
dc.contributor.googleauthorLee, Jong Hyeok-
dc.contributor.googleauthorKim, Kyung Hoon-
dc.contributor.googleauthorChoi, Moonkang-
dc.contributor.googleauthorJeon, Jisoo-
dc.contributor.googleauthorYoon, Hyeok Jun-
dc.contributor.googleauthorChoi, Jinhyeok-
dc.contributor.googleauthorLee, Young-Seak-
dc.contributor.googleauthorLee, Minbaek-
dc.contributor.googleauthorWie, Jeong Jae-
dc.relation.code2019036956-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDEPARTMENT OF ORGANIC AND NANO ENGINEERING-
dc.identifier.pidjjwie-
dc.identifier.researcherIDI-9878-2019-
dc.identifier.orcidhttps://orcid.org/0000-0001-7381-947X-
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COLLEGE OF ENGINEERING[S](공과대학) > ORGANIC AND NANO ENGINEERING(유기나노공학과) > Articles
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