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Surface modification of polycrystalline aluminium substrate in solution containing tetraphenylborate anion

✍ Scribed by M. Anbu Kulandainathan; K.L.N. Phani; S. Venkatakrishna Iyer

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 834 KB
Volume: 38
Category: Article
ISSN: 0013-4686
DOI: 10.1016/0013-4686(93)80215-l

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✦ Synopsis

Ah&net-The effect of tetraphenylborate anions on the oxidation/reduction cycling behaviour of polycrystalline aluminium surfaces in 0.1 M NaClO, solutions in the context of elimination of passive oxide formation, roughening and faceting is examined. Surface area enhancement without passive film formation was revealed by the i-t transients and impedance spectra of untreated and treated electrodes. Scanning Electron Microscope studies show evidence for crystallite formation upon treatment. X-ray diffraction measurements revealed preferential orientation of pc-aluminium in the (111) direction.

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