Journal article 1337 views 370 downloads
Understanding the Effect of Functional Groups on the Seeded Growth of Copper on Carbon Nanotubes for Optimizing Electrical Transmission
Kourtney D. Wright,
Cathren Gowenlock 
,
Joseph C. Bear,
Andrew Barron
,
Joseph C. Bear,
Andrew Barron
ACS Applied Materials & Interfaces, Volume: 9, Issue: 32, Pages: 27202 - 27212
Swansea University Authors:
Cathren Gowenlock , Andrew Barron
-
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DOI (Published version): 10.1021/acsami.7b10650
Abstract
We present a study of the seeded growth of copper on the surface of two classes of single-walled carbon nanotubes (SWNTs) in order to compare the effects of surface functional groups. Pyridine-functionalized HiPco SWNTs and ultrashort SWNTs (US-SWNTs) were synthesized (py-SWNTs and py-US-SWNTs, resp...
| Published in: | ACS Applied Materials & Interfaces |
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| ISSN: | 1944-8244 1944-8252 |
| Published: |
2017
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa35005 |
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| Abstract: |
We present a study of the seeded growth of copper on the surface of two classes of single-walled carbon nanotubes (SWNTs) in order to compare the effects of surface functional groups. Pyridine-functionalized HiPco SWNTs and ultrashort SWNTs (US-SWNTs) were synthesized (py-SWNTs and py-US-SWNTs, respectively), and the functionality was used as seed sites for copper, via an aqueous electroless deposition reaction, as a comparison to the carboxylic acid functionality present on piranha-etched SWNTs and the native US-SWNTs. UV–vis spectroscopy demonstrated the take-up of Cu(II) ions by the functionalized SWNTs. TEM showed that the SWNTs with pyridine functionality more rapidly produced a more even distribution of copper seeds with a narrower size distribution (3–12 nm for py-US-SWNTs) than those SWNTs with oxygen functional groups (ca. 30 nm), showing the adventitious role of the pyridine functional group in the seeding process. Seed composition was confirmed as Cu(0) by XPS and SAED. Copper growth rate and morphology were shown to be affected by degree of pyridine functionality, the length of the SWNT, and the electroless reaction solvent used. |
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| Keywords: |
copper; deposition; electroless; functionalization; nanoparticles; seeding; single-walled carbon nanotubes |
| College: |
Faculty of Science and Engineering |
| Issue: |
32 |
| Start Page: |
27202 |
| End Page: |
27212 |