Electrolyte Effects on Charge Transport Behavior of [Os(bpy)2(PVP)10Cl]Cl and [Ru(bpy)2(PVP)10Cl]Cl Redox Polymers in Ultra‐Thin Films of Polyions
作者： Bingquan Wang , Stephanie Brown , James F. Rusling
关键词: Redox 、 Pyrolytic carbon 、 Cyclic voltammetry 、 Inorganic chemistry 、 Electrolyte 、 Quartz crystal microbalance 、 Layer by layer 、 Materials science 、 Electron transfer 、 Electrochemistry
摘要: Metallopolymer films have important applications in electrochemical catalysis. The alternate electrostatic layer-by-layer method was used to assemble of [Ru(bpy)2(PVP)10Cl]Cl (denoted as ClRu-PVP) and [Os(bpy)2(PVP)10Cl]Cl (ClOs-PVP) metallopolymers onto pyrolytic graphite electrodes. Film thickness estimated by quartz crystal microbalance 6–8 nm. effects pH, electrolyte species concentration on the properties these electroactive polymers were studied using cyclic voltammetry (CV). Behavior various electrolytes compared. Also mass changes within ultra-thin film during redox Os2+/3+ characterized situ (EQCM). results indicate rapid reversible electron transfer, show that both ClRu-PVP ClOs-PVP compact surface structures while is a little denser than ClRu-PVP. Although hydrogen ions do not participate chemical reaction either film, movement Na+ cation water accompanies process films.
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