Comparative study of shortening and cutting strategies of single-walled and multi-walled carbon nanotubes assessed by scanning electron microscopy
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F18%3A00498912" target="_blank" >RIV/61388955:_____/18:00498912 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.carbon.2018.06.021" target="_blank" >http://dx.doi.org/10.1016/j.carbon.2018.06.021</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.carbon.2018.06.021" target="_blank" >10.1016/j.carbon.2018.06.021</a>
Alternative languages
Result language
angličtina
Original language name
Comparative study of shortening and cutting strategies of single-walled and multi-walled carbon nanotubes assessed by scanning electron microscopy
Original language description
Short carbon nanotubes (CNTs) are desired for a variety of applications. As a consequence, several strategies have been reported to cut and shorten the length of as-produced CNTs via chemical and physical routes. The efficiency of a given strategy largely depends on the physico-chemical characteristics of the CNTs employed. In order to be able to directly compare the advantages and disadvantages of commonly used protocols, a single batch of chemical vapor deposition single-walled CNTs (SWCNTs) and a batch of multi-walled CNTs (MWCNTs) were subjected to four cutting/shortening strategies, namely acid cutting, piranha treatment, steam shortening and ball milling. The length distribution was assessed by means of scanning electron microscopy. Sample purity and CNT wall structure were determined by Raman spectroscopy, thermogravimetric analysis and magnetic measurements. Within the employed experimental conditions, piranha treatment turned out to be the most efficient to achieve short SWCNTs with a narrow length distribution in a good yield, whereas a mixture of sulfuric/nitric acid was preferred in the case of MWCNTs. A subsequent short steam treatment allowed to remove functional groups present in the samples, leading to median length distributions of 266 nm and 225 nm for SWCNTs and MWCNTs respectively after the combined protocols. (C) 2018 Elsevier Ltd. All rights reserved.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
<a href="/en/project/LL1301" target="_blank" >LL1301: From Graphene Hybrid Nanostructures to Green Electronics</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Carbon
ISSN
0008-6223
e-ISSN
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Volume of the periodical
139
Issue of the periodical within the volume
NOV 2018
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
922-932
UT code for WoS article
000446063100107
EID of the result in the Scopus database
2-s2.0-85053149296