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Über die Phasengrenzimpedanz von anodisch polarisierten Nickelelektroden
Author(s) -
Trueb L. F.,
Trümpler G.,
Ibl N.
Publication year - 1961
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19610440602
Subject(s) - chemistry , passivation , chemisorption , nickel , oxygen , ion , sulfuric acid , ohmic contact , electrical impedance , inorganic chemistry , electrode , adsorption , analytical chemistry (journal) , layer (electronics) , electrical engineering , organic chemistry , engineering
The behaviour of the phase‐boundary impedance of anodically polarized Nickel rod electrodes in 0,2‐10N sulfuric acid has been investigated by means of AC measurements in the audio range. The behaviour of the capacitive element can be interpreted as being due to adsorption and reciprocal displacement of sulfate ions and oxygen; the ohmic element increases little at passivation. It is probable that the initiation of passivation is due to the chemisorption of oxygen.