Catalytic activation of activated carbon fibers via palladium aerosol nanoparticles for use in electroless silver deposition

Jeong Hoon Byeon, Byung Ju Ko, Jungho Hwang

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

A method of catalytic activation with palladium aerosol nanoparticles produced by spark generation was introduced. These catalytic particles were deposited onto the surfaces of activated carbon fibers (ACFs). After thermal curing, the catalytically activated ACFs were placed into a solution for electroless deposition (ELD) of silver. Homogeneous silver coatings on ACFs were achieved under various activation intensities and ELD times, and the results were compared to those obtained with a conventional "two-step" activation. Morphological, chemical, and textural properties of both catalytically activated ACFs and electroless silver deposited ACFs were characterized. When the activation intensity increased from 0.23 to 4.25 mg/g (palladium/ACFs) for an ELD time of 10 min, our aerosol activation increased the silver deposition from 7.1 to 13.2 mg/g (silver/ACFs) and the average size of the silver particles from 4.9 to 38.8 nm. However, the surface area and pore volume of the ACFs decreased from 1382 to 1286 m2/g and from 0.77 to 0.67 cm3/g, respectively.

Original languageEnglish
Pages (from-to)3627-3632
Number of pages6
JournalJournal of Physical Chemistry C
Volume112
Issue number10
DOIs
Publication statusPublished - 2008 Mar 13

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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