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

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 PNP/DABMWCNT hybrid displays high electrocatalytic activity with good electrochemical stability for an oxygen reduction reaction under an alkaline condition.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2012
Accession Number
ADA571106

Entities

People

  • Hyun-jung Choi
  • In-yup Jeon
  • Ji-ye Kang
  • Jong-Beom Baek
  • Loon-Seng Tan
  • Soo-mi Eo

Organizations

  • Ulsan National Institute of Science and Technology

Tags

DTIC Thesaurus Topics

  • Alcohols
  • Carbon Nanotubes
  • Chemical Reactions
  • Chemical Synthesis
  • Chemistry
  • Composite Materials
  • Fullerenes
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Metallic Nanoparticles
  • Metals
  • Nanomaterials
  • Nanoparticles
  • Oxidation Reduction Reactions

Fields of Study

  • Chemistry

Readers

  • Analytical Chemistry
  • Electrochemical Engineering/ Fuel Cell Technologies
  • Polymer Science and Technology

Technology Areas

  • Biotechnology