title: The dual role of micelles as templates and reducing agents for the fabrication of catalytically active hollow silver nanospheres.
abstract: We report a simple and efficient protocol for fabrication of colloidal hollow silver nanospheres of size less than 30 nm using an ABC triblock copolymer poly(styrene-b-vinyl-2-pyridine-b-ethylene oxide) in the absence of any reducing agents. The colloidal silver hollow nanoparticles serve as an efficient heterogeneous catalyst for Baeyer-Villiger oxidation of ketones to the corresponding lactones in the presence of anhydrous tert-butylhydroperoxide under liquid-phase conditions.
authors.affiliation: SRM Research Institute, SRM University, Kattankulathur, Chennai, 603203, India. sasidharan.m@res.srmuniv.ac.in.
authors.forename: Manickam
authors.initials: M
authors.lastname: Sasidharan
authors.forename: Chenrayan
authors.initials: C
authors.lastname: Senthil
authors.forename: Vandana
authors.initials: V
authors.lastname: Kumari
authors.forename: Asim
authors.initials: A
authors.lastname: Bhaumik
mesh_terms: D002384:Catalysis; D003102:Colloids / Q000737:chemistry*; D005026:Ethylene Glycols / Q000737:chemistry; D007659:Ketones / Q000737:chemistry; D007783:Lactones / Q000737:chemistry; D008823:Micelles; D054118:Nanospheres / Q000737:chemistry* / Q000648:ultrastructure; D010084:Oxidation-Reduction; D010316:Particle Size; D011137:Polystyrenes / Q000737:chemistry; D011145:Polyvinyls / Q000737:chemistry; D019163:Reducing Agents / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*; D020122:tert-Butylhydroperoxide / Q000737:chemistry
chemical_list: D003102:Colloids; D005026:Ethylene Glycols; D007659:Ketones; D007783:Lactones; D008823:Micelles; D011137:Polystyrenes; D011145:Polyvinyls; D019163:Reducing Agents; C507265:poly(styrene-b-2-vinyl pyridine-b-ethylene oxide); D012834:Silver; D020122:tert-Butylhydroperoxide