Title: Electrostatic Self-Assembly
of a Pt-around-Au Nanocomposite with High Activity towards Formic Acid
Oxidation
Author:Sheng Zhang, Yuyan Shao, Geping Yin and Yuehe Lin
Address:Address:
1 School of Chemical Engineering & Technology, Harbin Institute of
Technology
2 Pacific Northwest National Laboratory, Richland, WA
Abstract: A Pt-around-Au nanocomposite is synthesized by
electrostatic self-assembly (see picture;
PDDA=poly(diallyldimethylammonium chloride)). This catalyst shows
significantly improved activity towards formic acid oxidation versus
pure Pt catalysts. The possible reason is the efficient spillover of
HCOO from Au to the surrounding Pt nanoparticles, where HCOO is further
oxidized to CO2.
