Analyst, The 2013-Oct
Effects of surfactants on electrochemically prepared Ag nanostructures.
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Abstract
The morphology and corrosion behavior of electrochemically prepared Ag nanostructures (NSs) have been examined in the absence and presence of potassium citrate, polyvinylpyrrolidone (PVP) and polyoxyethylene(20) sorbitan monolaurate (Tween-20). These additives give rise to morphologically distinct Ag NSs. The presence of citrate increases the dissolution of Ag and creates finer nanostructured Ag surfaces with more cavities, while Tween-20 protects the Ag surface against corrosion in alkaline solution and generates spherical non-packed nanofeatured Ag surfaces.
