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Baek, Jong-Beom
Center for Dimension-Controllable Organic Frameworks
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Immobilization of platinum nanoparticles on 3,4-diaminobenzoyl- functionalized multi-walled carbon nanotube and its electrocatalytic activity

Author(s)
Choi, Hyun-JungKang, Ji-YeJeon, In-YupEo, Soo-MiTan, Loon-SengBaek, Jong-Beom
Issued Date
2012-02
DOI
10.1007/s11051-011-0704-5
URI
https://scholarworks.unist.ac.kr/handle/201301/4156
Fulltext
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84856072924
Citation
JOURNAL OF NANOPARTICLE RESEARCH, v.14, no.2, pp.1 - 11
Abstract
Multi-walled carbon nanotubes (MWCNTs) are functionalized at the sp(2) C-H defect sites with 3,4-diaminobenzoic acid by a "direct" Friedel-Crafts acylation reaction in a mild polyphosphoric acid/phosphorous pentoxide medium. Owing to enhanced surface polarity, the resulting 3,4-diaminobenzoyl-functionalized MWCNTs (DAB-MWCNT) are highly dispersible in polar solvents, such as ethanol, N-methyl-2-pyrrolidone, and methanesulfonic acid. The absorption and emission properties of DAB-MWCNT in solution state are qualitatively shown to be sensitive to the pH in the environment. The DAB-MWCNT is used as a stable platform on which to deposit platinum nanoparticles (PNP). The PNP/DAB-MWCNT hybrid displays high electrocatalytic activity with good electrochemical stability for an oxygen reduction reaction under an alkaline condition.
Publisher
SPRINGER
ISSN
1388-0764
Keyword (Author)
Platinum nanoparticlesMulti-walled carbon nanotubesFunctionalizationElectrocatalytic activity

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