title: Self-assembly of ionic liquids-stabilized Pt nanoparticles into two-dimensional patterned nanostructures at the air-water interface.
abstract: In this paper, we demonstrate the self-assembly of ionic liquids (ILs)-stabilized Pt nanoparticles into two-dimensional (2D) patterned nanostructures at the air-water interface under ambient conditions. Here, ILs are not used as solvents but as mediators by virtue of their pronounced self-organization ability in synthesis of self-assembled, highly organized hybrid Pt nanostructures. It is also found that the morphologies of the 2D patterned nanostructures are directly connected with the quantities of ILs. Due to the special structures of ILs-stabilized Pt nanoparticles, 2D patterned Pt nanostructures can be formed through the pi-pi stack interactions and hydrogen bonds. The resulting 2D patterned Pt nanostructures exhibit good electrocatalytic activity toward oxygen reduction.
authors.affiliation: State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, and Graduate School of the Chinese Academy of Sciences, Chinese Academy of Sciences, Changchun, Jilin, PR China.
authors.forename: Hongjun
authors.initials: H
authors.lastname: Chen
authors.forename: Shaojun
authors.initials: S
authors.lastname: Dong
mesh_terms: D000388:Air; D052578:Ionic Liquids / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning / Q000295:instrumentation / Q000379:methods; D046529:Microscopy, Electron, Transmission / Q000295:instrumentation / Q000379:methods; D053758:Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D010316:Particle Size; D010984:Platinum / Q000737:chemistry*; D013053:Spectrophotometry / Q000295:instrumentation / Q000379:methods; D013499:Surface Properties; D014867:Water / Q000737:chemistry; D014961:X-Ray Diffraction; D014965:X-Rays
chemical_list: D052578:Ionic Liquids; D014867:Water; D010984:Platinum