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Characterization of functional groups on oxidized multi-wall carbon nanotubes by potentiometric titration

Paper ID Volume ID Publish Year Pages File Format Full-Text
53704 46981 2015 7 PDF Available
Title
Characterization of functional groups on oxidized multi-wall carbon nanotubes by potentiometric titration
Abstract

•We apply principle component analysis on the potentiometric titration of functionalized MWCNT.•We found there are 5 major Brønsted acidity functional groups on the surface of MWCNT.•This titration method can potentially be an easy, fast routine characterization method for carbon material.

Since the discovery of carbon nanotubes (CNT), this material has been recognized as an attractive material because of its exceptional physical and chemical properties. CNT must be functionalized for most applications. However, the functional groups on the CNT are very complex. Here a simple acid–base titration is introduced to characterize the functionalized multi-wall carbon nanotubes (MWCNT). By using the principle component analysis (PCA) of a titration data set of 21 independent curves, we can calculate the density of Brønsted acid functional groups for each differently functionalized MWCNT.

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Keywords
Carbon nanotubes; Functionalization; Potentiometric titration; Principle component analysis; Characterization
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Characterization of functional groups on oxidized multi-wall carbon nanotubes by potentiometric titration
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 249, 1 July 2015, Pages 23–29
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us