title: Self-supported Pt nanoclusters via galvanic replacement from Cu2O nanocubes as efficient electrocatalysts.
abstract: A novel synthesis method for self-supported Pt nanoclusters (Pt NCs) comprised of interconnected 2-3 nm Pt nanoparticles was developed by employing the galvanic replacement process between Cu2O nanocubes and PtCl4(2-) ions. This discovered synthesis procedure eliminates the use of any polymer capping agents and enables a catalytically clean Pt surface. It is determined that the presence of H(+) ions is crucial for initializing the galvanic replacement reaction. The electrocatalytic performances of the Pt NCs were tested for both oxygen reduction and methanol oxidation reactions, which showed higher electrochemical activity and greater long-term durability as compared with commercial Pt materials.
authors.affiliation: Department of Chemistry, Harbin Institute of Technology, Harbin 150001, China.
authors.forename: Qing
authors.initials: Q
authors.lastname: Li
authors.forename: Ping
authors.initials: P
authors.lastname: Xu
authors.forename: Bin
authors.initials: B
authors.lastname: Zhang
authors.forename: Gang
authors.initials: G
authors.lastname: Wu
authors.forename: Hongtao
authors.initials: H
authors.lastname: Zhao
authors.forename: Engang
authors.initials: E
authors.lastname: Fu
authors.forename: Hsing-Lin
authors.initials: HL
authors.lastname: Wang