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

Byeon, Jeong Hoon and Ko, Byung Ju and Hwang, Jungho (2008) Catalytic activation of activated carbon fibers via palladium aerosol nanoparticles for use in electroless silver deposition. JOURNAL OF PHYSICAL CHEMISTRY C, 112 (10). pp. 3627-3632.

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Official URL: http://dx.doi.org/10.1021/jp7108225

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 m(2)/g and from 0.77 to 0.67 cm(3)/g, respectively.

Item Type:Article
Subjects:Material Science > Functional and hybrid materials
Material Science > Nanofabrication processes and tools
Material Science > Nanochemistry
ID Code:1392
Deposited By:Anuj Seth
Deposited On:09 Dec 2008 10:49
Last Modified:16 Jan 2009 11:36

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