Infrared Characterization Of Electrochromic Nickel Hydroxide Prepared By Homogeneous Chemical Precipitation

dc.creatorTorresi R.M.
dc.creatorVazquez M.V.
dc.creatorGorenstein A.
dc.creatorde Torresi S.I.C.
dc.date1993
dc.date2015-06-30T14:31:48Z
dc.date2015-11-26T14:43:30Z
dc.date2015-06-30T14:31:48Z
dc.date2015-11-26T14:43:30Z
dc.date.accessioned2018-03-28T21:51:39Z
dc.date.available2018-03-28T21:51:39Z
dc.identifier
dc.identifierThin Solid Films. , v. 229, n. 2, p. 180 - 186, 1993.
dc.identifier406090
dc.identifier10.1016/0040-6090(93)90361-R
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-0027609835&partnerID=40&md5=8f96542f282def5e5ceb7a6307dbb1cf
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/99674
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/99674
dc.identifier2-s2.0-0027609835
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1251704
dc.descriptionTwo different methods for preparing electrochromic nickel hydroxide films are tested: thermal hydrolysis of [Ni(NH3)6]2+ complex and thermal decomposition of a mixture of urea and NiSO4. Both methods lead to adherent and homogeneous films presenting good electrochromic properties. Thermogravimetric analysis shows that Ni(OH)2 prepared from urea decomposition has intercalated water molecules, while hydroxides prepared from ammonia complexes present ß-like structure without hydration. Ex-situ infrared spectroscopy was used to characterize virgin, bleached and colored states of the films under different experimental conditions. IR spectra of the colored state show the diminution of the 3650 cm-1 band related to free OH- stretching vibrations. The disappearance of this band is associated with the oxidation process and also with the physicochemical nature of alkaline cations incorporated in the oxide matrix during the coloration process. © 1993.
dc.description229
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dc.languageen
dc.publisher
dc.relationThin Solid Films
dc.rightsfechado
dc.sourceScopus
dc.titleInfrared Characterization Of Electrochromic Nickel Hydroxide Prepared By Homogeneous Chemical Precipitation
dc.typeArtículos de revistas


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