Reduction-adsorption behavior of platinum ions on activated carbon fibers

被引：31

作者：

Chen, Shuixia ^{[1
]}

Xu, Ruimei ^{[1
]}

Huang, Huixing ^{[1
]}

Yi, Fenyun ^{[1
]}

Zhou, Xin ^{[1
]}

Zeng, Hanmin ^{[1
]}

机构：

[1] Zhongshan Univ, Sch Chem & Chem Engn, Inst Mat Sci, Key Lab Poymer Composite & Funct Mat Educ Minist, Guangzhou 510275, Guangdong, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE | 2007年 / 42卷 / 23期

关键词：

D O I：

10.1007/s10853-007-1748-x

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A number of activated carbon fibers (ACF) were prepared by activation with steam, Phosphoric acid, or Zinc Chloride. Their reduction-adsorption behavior for Pt(IV) was studied using scanning electron microscopy, X-ray diffraction (XRD) and X-ray 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 Pt(II) or Pt(IV). XRD examination showed that the Pt particles on the ACF surface were crystallized when heated to 673 K.

引用

页码：9572 / 9581

页数：10

共 19 条

[1] Shape-controlled synthesis of colloidal platinum nanoparticles [J].