Authors: Shuixia Chen Ruimei Xu Huixing Huang Fenyun Yi Xin Zhou Hanmin Zeng
Publish Date: 2007/06/23
Volume: 42, Issue: 23, Pages: 9572-9581
Abstract
A number of activated carbon fibers ACF were prepared by activation with steam Phosphoric acid or Zinc Chloride Their reductionadsorption behavior for PtIV was studied using scanning electron microscopy Xray diffraction XRD and Xray photoelectron spectroscopy The results show that Pt ions in solution can be adsorbed by ACFs and reduced to metallic platinum The reduction–adsorption capacity of ACF for Pt could be greater than 200 mg/g Generally higher specific surface area or lower electrode potential produces a higher capacity Most of the adsorbed platinum ions were reduced into metallic platinum and about 25 of platinum atoms remained as PtII or PtIV XRD examination showed that the Pt particles on the ACF surface were crystallized when heated to 673 K
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