Academic Journal
Facile growth of high-yield and -crystallinity vertically aligned carbon nanotubes via a sublimated ferric chloride catalyst precursor
| العنوان: | Facile growth of high-yield and -crystallinity vertically aligned carbon nanotubes via a sublimated ferric chloride catalyst precursor |
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| المؤلفون: | Goktas, Hilal, Lachman, Noa, Kalfon-Cohen, Estelle, Wang, Xiaoxue, Torosian, Stephen, Gleason, Karen K, Wardle, Brian L |
| المساهمون: | Airbus, Boeing, Embraer, Lockheed Martin, National Nanotechnology Infrastructure Network, Ansys, US Army Research Office, MIT’s Microsystems Technology Laboratories, NSF, Institute for Soldier Nanotechnologies, Center for Nanoscale Systems, Harvard University, Hexcel |
| المصدر: | Nano Futures ; volume 7, issue 2, page 025001 ; ISSN 2399-1984 |
| بيانات النشر: | IOP Publishing |
| سنة النشر: | 2023 |
| الوصف: | A facile and effective catalyst deposition process for carbon nanotube (CNT) array growth via chemical vapor deposition using a resistively heated thermal evaporation technique to sublimate FeCl 3 onto the substrate is demonstrated. The catalytic activity of the sublimated FeCl 3 catalyst precursor is shown to be comparable to the well-studied e-beam evaporated Fe catalyst, and the resulting vertically aligned CNTs (VA-CNTs) have a similar diameter, walls, and defects, as well as improved bulk electrical conductivity. In contrast to standard e-beam-deposited Fe, which yields base-growth CNTs, scanning and transmission electron microscopy and X-ray photoelectron spectroscopy characterizations reveal a tip-growth mechanism for the FeCl 3 -derived VA-CNT arrays/forests. The FeCl 3 -derived forests have a lower (∼1/3 less) longitudinal indentation modulus, but higher longitudinal electrical conductivity (greater than twice) than that of the e-beam Fe-grown CNT arrays. The sublimation process to grow high-quality VA-CNTs is a highly facile and scalable process (extensive substrate shape and size, and moderate vacuum and temperatures) that provides a new route to synthesizing aligned CNT forests for numerous applications. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | unknown |
| DOI: | 10.1088/2399-1984/acc43c |
| DOI: | 10.1088/2399-1984/acc43c/pdf |
| الاتاحة: | http://dx.doi.org/10.1088/2399-1984/acc43c https://iopscience.iop.org/article/10.1088/2399-1984/acc43c https://iopscience.iop.org/article/10.1088/2399-1984/acc43c/pdf |
| Rights: | http://creativecommons.org/licenses/by/4.0 ; https://iopscience.iop.org/info/page/text-and-data-mining |
| رقم الانضمام: | edsbas.BB6A3DE6 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1088/2399-1984/acc43c |
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