title: Electrodeposition of zinc hydroxysulfate nanosheets and reduction to zinc metal microdendrites on polypyrrole films.
abstract: Nanothin sheets made of zinc sulfate hydroxide hydrate, ZnSO4[Zn(OH)2]3 x 5H2O, are easily and quickly prepared using an innovative electrochemical route onto polypyrrole-polystyrene sulfonate (PPy-PSS) films. The sheets are characterized using a range of experimental techniques. The deposits are formed on the film surface with instantaneous nucleation to grow into a network of entangled nanosheets. The effect of the experimental conditions on the deposition is reported. Interestingly, the formation of the nanosheets is observed on PPy-PSS films only, and not on films doped with other sulfate/sulfonate dopants. The zinc nanosheets can be easily electrochemically reduced to metallic zinc microdentrites.
authors.affiliation: National University of Ireland Maynooth, Department of Chemistry, Maynooth, Co. Kildare, Ireland.
authors.forename: Enrico
authors.initials: E
authors.lastname: Andreoli
authors.forename: Denise A
authors.initials: DA
authors.lastname: Rooney
authors.forename: Wynette
authors.initials: W
authors.lastname: Redington
authors.forename: Robert
authors.initials: R
authors.lastname: Gunning
authors.forename: Carmel B
authors.initials: CB
authors.lastname: Breslin
mesh_terms: D003460:Crystallization / Q000379:methods*; D050091:Dendrimers / Q000737:chemistry; D004595:Electroplating / Q000379:methods*; D047348:Hydrolyzable Tannins; D008422:Materials Testing; D008567:Membranes, Artificial; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D010084:Oxidation-Reduction; D010316:Particle Size; D011108:Polymers / Q000737:chemistry*; D011758:Pyrroles / Q000737:chemistry*; D013431:Sulfates / Q000737:chemistry; D013499:Surface Properties; D015032:Zinc / Q000737:chemistry*
chemical_list: D050091:Dendrimers; D047348:Hydrolyzable Tannins; D008567:Membranes, Artificial; D011108:Polymers; D011758:Pyrroles; D013431:Sulfates; C067635:polypyrrole; C036335:kastrin; D015032:Zinc