Gold nanoparticles on activated carbon fibers: Role of carbon surface groups for controlling the Au-particle size and catalytic activity
Gold nanoparticles were supported on activated carbon fibers (ACF) using the aq. soln. of [Au(en)2]Cl3 via ion-exchange with surface hydroxyl groups followed by redn. in H2. The obtained catalysts were tested in CO oxidn. at room temp. Surface phenolic groups fix Au3+-ions leading to the formation of small Au particles (.apprx.5 nm) after the redn. with high activity in the reaction. AAS, TPD, HRTEM/EDAX and XPS were used for characterization of the catalysts and supports. [on SciFinder (R)]
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LGRC-EPFL,Swiss Federal Institute of Technology,Lausanne,Switz.
Conference; Meeting Abstract
written in English.
Record created on 2006-04-18, modified on 2016-08-08