title: Fabrication of silver-coated silica microspheres through mussel-inspired surface functionalization.
abstract: A facile method was developed to prepare silica-silver core-shell composite microspheres with continuous, compact, and conductive silver layers. The procedure involves dopamine oxidative self-polymerization and electroless plating. The poly(dopamine) layer was used as the chemi-sorption sites for silver ions and promoted the silver deposition. The electroless plating procedure involves a combination of surface activation, seeding growth, and deposition. The chemical composition and the crystal structure of the silica-silver core-shell composite microspheres were studied by X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD), respectively. In addition, the surface morphology and chemical composition of each composite microsphere were confirmed by scanning electron microscopy and energy dispersive X-ray spectroscopy. The results demonstrated that the silver layer on the silica surface was continuous and compacted.
authors.affiliation: Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education and Key Laboratory of Beijing City on Preparation and Processing of Novel Polymer Materials, Beijing University of Chemical Technology, Beijing 100029, China.
authors.forename: Wencai
authors.initials: W
authors.lastname: Wang
authors.forename: Yi
authors.initials: Y
authors.lastname: Jiang
authors.forename: Yuan
authors.initials: Y
authors.lastname: Liao
authors.forename: Ming
authors.initials: M
authors.lastname: Tian
authors.forename: Hua
authors.initials: H
authors.lastname: Zou
authors.forename: Liqun
authors.initials: L
authors.lastname: Zhang
mesh_terms: D000818:Animals; D040761:Biomimetic Materials / Q000138:chemical synthesis*; D032701:Biomimetics; D049872:Bivalvia; D008863:Microspheres; D012822:Silicon Dioxide / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D012834:Silver; D012822:Silicon Dioxide