Catalyst-Mediated Enhancement of Carbon Nanotube Textiles by Laser Irradiation: Nanoparticle Sweating and Bundle Alignment
| العنوان: | Catalyst-Mediated Enhancement of Carbon Nanotube Textiles by Laser Irradiation: Nanoparticle Sweating and Bundle Alignment |
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| المؤلفون: | Fiona Smail, Jeronimo Terrones, Daniel D. Tune, Giorgio Divitini, John S. Bulmer, Jennifer Mizen, John D. Cook, Adarsh Kaniyoor, James A. Elliott, Wei Tan, Thurid Gspann, Philipp A. Kloza |
| المساهمون: | Kaniyoor, Adarsh [0000-0001-5851-1362], Divitini, Giorgio [0000-0003-2775-610X], Smail, Fiona [0000-0002-1725-3683], Elliott, James [0000-0002-4887-6250], Apollo - University of Cambridge Repository, Kloza, Philipp A. [0000-0002-6552-6826], Elliott, James A. [0000-0002-4887-6250] |
| المصدر: | Catalysts, Vol 11, Iss 368, p 368 (2021) Catalysts; Volume 11; Issue 3; Pages: 368 Catalysts, 11 (3), 1-30 Catalysts |
| بيانات النشر: | Apollo - University of Cambridge Repository, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Technology, Materials science, CNT, microstructure, Nanoparticle, 02 engineering and technology, Carbon nanotube, Chemical vapor deposition, 010402 general chemistry, lcsh:Chemical technology, 01 natural sciences, Catalysis, law.invention, lcsh:Chemistry, Crystallinity, symbols.namesake, law, lcsh:TP1-1185, thermal processing, Physical and Theoretical Chemistry, carbon nanotube, General Environmental Science, carbon nanotube/CNT, catalyst, network, textiles, photonic processing, alignment, 021001 nanoscience & nanotechnology, Microstructure, 0104 chemical sciences, Chemical engineering, lcsh:QD1-999, symbols, 0210 nano-technology, Joule heating, Raman spectroscopy, ddc:600 |
| الوصف: | The photonic post-processing of suspended carbon nanotube (CNT) ribbons made by floating catalyst chemical vapor deposition (FC-CVD) results in selective sorting of the carbon nanotubes present. Defective, thermally non-conductive or unconnected CNTs are burned away, in some cases leaving behind a highly crystalline (as indicated by the Raman G:D ratio), highly conductive network. However, the improvement in crystallinity does not always occur but is dependent on sample composition. Here, we report on fundamental features, which are observed for all samples. Pulse irradiation (not only by laser but also white light camera flashes, as well as thermal processes such as Joule heating) lead to (1) the sweating-out of catalyst nanoparticles resulting in molten catalyst beads of up to several hundreds of nanometres in diameter on the textile surface and (2) a significant improvement in CNT bundle alignment. The behavior of the catalyst beads is material dependent. Here, we show the underlying mechanisms of the photonic post-treatment by modelling the macro- and microstructural changes of the CNT network and show that it is mainly the amount of residual catalyst which determines how much energy these materials can withstand before their complete decomposition. |
| وصف الملف: | application/pdf; text/xml; application/zip |
| تدمد: | 2073-4344 |
| DOI: | 10.17863/cam.65877 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3fae283412f45eb363dbc2968c3e72cc |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....3fae283412f45eb363dbc2968c3e72cc |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20734344 |
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| DOI: | 10.17863/cam.65877 |