Rough electrodeposits

Electrodeposition Suitable for most articles Gives uniform film even on rough surfaces. With suitable plant will completely coat interior surfaces, sharp edges, etc. but generally only economic on mass production... 

Burnt Deposit a rough, poorly coherent, electrodeposit that results from the application of an excessively high current density. 

Bouroushian M, Charoud-Got J, Loizos Z, SpyreUis N (2000) A phase modification of CdSe electrodeposits induced by substrate roughness. J Mater Sci Lett 19 2201-2203... 

Gonzalez-Garcia J, Iniesta J, Exposito E et al (1999) Early stages of lead dioxide electrodeposition on rough titanium. This Solid Films 352 49-56... 

Diffusion-limited electrochemical techniques as well as physical techniques have been effectively used to determine the surface fractal dimensions of the rough surfaces and interfaces made by electrodeposition, " fracture, " vapor deposition, ... 

Zinc electrodeposition on zinc electrode with rough surface exhibited potential oscillations accompanied by fern-leafshaped deposits, contrary to the case... 

Nanoscale electrodeposition of Ge on Au(lll) from an ionic liquid has been studied ]494] utilizing in situ STM. At underpotentials, a thin rough layer is formed. 

Smooth Pt and Rh electrodes have been compared [105, 269] with electrodepos-ited layers to investigate the effect of roughness (which may be of the order of 103). While electrodeposited Pt absorbs hydrogen and bright Pt does not, no surface area effect has been observed as for hydrogen evolution. This indicates that the internal surface (pores) of rough electrodes does not work because of exclusion due to gas formation. Thus, the porosity of the active layers also needs to be characterized. It has been shown that in the case of Raney Ni [270] this can be conveniently done by means of impedance measurements [271]. 

Platinized platinum — Metallic platinum covered with a rough large-surface-area platinum coating. The very well-developed metal surface results in a Pt -> electrode of a large true area that is relatively nonpolar-izable. A platinized platinum electrode can be obtained by cathodic -> electrodeposition of a rough Pt deposit at Pt-metal electrode from a solution consisting of chloro-platinic acid (3%), lead acetate (0.025%), and hydrochloric acid (ca. 1%) The name of this electrodeposited coating -r platinum black comes from deep black color and dull surface of the deposit. In fact, the dark black color appears when lead is used as an additive. When pure... 

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