Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Choi, Yoohyeon | - |
dc.contributor.author | Tran, Ngoc Tuan | - |
dc.contributor.author | Jang, Doojoon | - |
dc.contributor.author | Park, Minju | - |
dc.contributor.author | Yoo, Chun-Jae | - |
dc.contributor.author | Kim, Jin Young | - |
dc.contributor.author | Lee, Hyunjoo | - |
dc.contributor.author | Kim, Heesuk | - |
dc.date.accessioned | 2024-01-19T08:01:08Z | - |
dc.date.available | 2024-01-19T08:01:08Z | - |
dc.date.created | 2023-12-21 | - |
dc.date.issued | 2024-01 | - |
dc.identifier.issn | 1463-9262 | - |
dc.identifier.uri | https://pubs.kist.re.kr/handle/201004/112966 | - |
dc.description.abstract | As global interest in carbon-neutrality policies grows, the demand for sustainable alternatives to fossil fuels intensifies. Herein, we demonstrate functionalized lignin-based n- and p-dopants for nanocarbon materials, providing promising eco-friendly alternatives to chemical dopants derived from fossil fuels. A simple microwave-assisted phenolation of organosolv lignin introduces phenol groups, offering additional reaction sites and enhancing solvent solubility for uniform, reliable and efficient carbon nanotube (CNT) doping. To create effective n- and p-dopants, the phenolated lignin is further functionalized with amine and hexafluoropropyl groups, respectively. The aminated and fluorinated lignin-doped CNTs present the Seebeck coefficients of -48.0 and 53.9 mu V K-1, respectively, confirming an efficient and eco-friendly conversion between n- and p-type CNT. Notably, this n-doping performance is of particular significance since stable and reliable n-doping is challenging due to the inherent p-type semiconducting properties of CNTs. As a proof of concept, we demonstrate a flexible thermoelectric generator using 10 p-n pairs of the CNT films. The output voltage (7.86 mV) and output power (247 nW) of the flexible generator at Delta T = 15 K confirm that the aminated- and fluorinated lignin-doped CNT films exhibit n- and p-type characteristics, respectively. This study paves the way for sustainable, lignin-based doping of carbon nanomaterials, offering a green alternative to traditional fossil fuel-derived dopants and contributing to the transition towards carbon-neutral technologies. We strategically modify lignin as effective p- and n-dopants for nanocarbon materials, offering promising alternatives to chemical dopants from fossil-fuels. | - |
dc.language | English | - |
dc.publisher | Royal Society of Chemistry | - |
dc.title | Eco-friendly conversion between n- and p-type carbon nanotubes based on rationally functionalized lignin biopolymers | - |
dc.type | Article | - |
dc.identifier.doi | 10.1039/d3gc03944g | - |
dc.description.journalClass | 1 | - |
dc.identifier.bibliographicCitation | Green Chemistry, v.26, no.1, pp.330 - 339 | - |
dc.citation.title | Green Chemistry | - |
dc.citation.volume | 26 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 330 | - |
dc.citation.endPage | 339 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.identifier.wosid | 001119541000001 | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Green & Sustainable Science & Technology | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | CORROSION INHIBITION | - |
dc.subject.keywordPlus | MANNICH REACTION | - |
dc.subject.keywordPlus | MILD-STEEL | - |
dc.subject.keywordPlus | PHENOLATION | - |
dc.subject.keywordPlus | TRANSPORT | - |
dc.subject.keywordPlus | KRAFT | - |
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