Accession Number:

ADA571106

Title:

Immobilization of Platinum Nanoparticles on 3,4-diaminobenzoyl-Functionalized Multi-Walled Carbon Nanotube and its Electrocatalytic Activity

Descriptive Note:

Journal article

Corporate Author:

ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY (KOREA SOUTH)

Report Date:

2012-01-01

Pagination or Media Count:

12.0

Abstract:

Multi-walled carbon nanotubes MWCNTs are functionalized at the sp2 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-diaminobenzoylfunctionalized 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 DABMWCNT in solution state are qualitatively shown to be sensitive to the pH in the environment. The DABMWCNT is used as a stable platform on which to deposit platinum nanoparticles PNP. The PNPDABMWCNT hybrid displays high electrocatalytic activity with good electrochemical stability for an oxygen reduction reaction under an alkaline condition.

Subject Categories:

  • Refractory Fibers
  • Miscellaneous Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE