Immobilization of platinum nanoparticles on 3,4-diaminobenzoyl- functionalized multi-walled carbon nanotube and its electrocatalytic activity

被引：4

作者：

Choi, Hyun-Jung ^{[1
]}

Kang, Ji-Ye ^{[1
]}

Jeon, In-Yup ^{[1
]}

Eo, Soo-Mi ^{[1
]}

Tan, Loon-Seng ^{[2
]}

Baek, Jong-Beom ^{[1
]}

机构：

[1] Ulsan Natl Inst Sci & Technol, Interdisciplinary Sch Green Energy, Inst Adv Mat & Devices, Ulsan 689798, South Korea

[2] USAF, Nanostruct & Biol Mat Branch, AFRL RXBN Mat & Mfg Directorate, Wright Patterson AFB, OH 45433 USA

来源：

JOURNAL OF NANOPARTICLE RESEARCH | 2012年 / 14卷 / 02期

基金：

新加坡国家研究基金会;

关键词：

Platinum nanoparticles; Multi-walled carbon nanotubes; Functionalization; Electrocatalytic activity; COMPOSITES; CATALYSTS; PURIFICATION; DEPOSITION; REDUCTION; SURFACE; OXYGEN; PD;

D O I：

10.1007/s11051-011-0704-5

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

引用

页数：11

共 42 条

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