Artículos de revistas
Infrared Characterization Of Electrochromic Nickel Hydroxide Prepared By Homogeneous Chemical Precipitation
Registro en:
Thin Solid Films. , v. 229, n. 2, p. 180 - 186, 1993.
406090
10.1016/0040-6090(93)90361-R
2-s2.0-0027609835
Autor
Torresi R.M.
Vazquez M.V.
Gorenstein A.
de Torresi S.I.C.
Institución
Resumen
Two 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. 229 2 180 186 Oliva, Leonardi, Laurent, Delmas, Braconier, Figlarz, Fievet, De Guibert, (1982) J. Power Sources, 8, p. 229 Delahaye-Vidal, Beaudoin, Figlarz, (1986) Reactivity of Solids, 2, p. 223 Delahaye-Vidal, Figlarz, (1987) J. Appl. Electrochem., 17, p. 589 Genin, Delahaye-Vidal, Portemer, Tekaia-Elhsissen, Figlarz, (1991) Eur. J. Solid State Inorg. Chem., 28, p. 505 Le Bihan, Guenot, Figlarz, (1970) C. R. Acad. Sci., 270 C, p. 2131 Figlarz, Le Bihan, (1971) C. R. Acad. Sci., 272 C, p. 580 Bode, Dehmelt, Witte, (1966) Electrochim. Acta, 11, p. 1079 Faure, Delmas, Fouassier, (1991) J. Power Sources, 35, p. 279 Faure, Delmas, Fouassier, Willmann, (1991) J. Power Sources, 35, p. 249 Faure, Delmas, Willmann, (1991) J. Power Sources, 35, p. 263 Faure, Borthomieu, Delmas, Fouassier, (1991) J. Power Sources, 36, p. 113 Córdoba-Torresi, Gabrielle, Goff, Torresi, Electrochromic Behavior of Nickel Oxide Electrodes (1991) Journal of The Electrochemical Society, 138, p. 1548 Fantini, Gorenstein, (1987) Solar Energy Mater., 16, p. 487 Granqvist, Svensson, Optical properties of electrochromic hydrated nickel oxide coatings made by rf sputtering (1987) Applied Optics, 26, p. 1554 Bange, Baucke, Metz, <title>Properties Of Electrochromic Nickel Oxide Coatings Produced By Reactive Evaporation</title> (1988) Proc. SPIE, 1016, p. 170 Delichere, Joiret, Goff, Bange, Metz, <title>Electrochromism In Nickel Oxide Films</title> (1988) Proc. SPIE, 1016, p. 165 Merlin, Teichner, (1953) C. R. Acad. Sci., 236, p. 1892 M. J. Avena, M. V. Vazquez, R. E. Carbonio, C. P. De Pauli and V. A. Macagno, unpublished results, 1991Kober, Analysis of the Charge-Discharge Characteristics of Nickel-Oxide Electrodes by Infrared Spectroscopy (1965) Journal of The Electrochemical Society, 112, p. 1064 Kober, Infrared Spectroscopic Investigation of Charged Nickel Hydroxide Electrodes (1967) Journal of The Electrochemical Society, 114, p. 215 Shamina, Maladin, Rakhovskaya, Vereshchagina, (1974) Elektrokhimiya, 10, p. 1571 Shamina, Maladin, Rakhovskaya, Vereshchagina, (1974) Elektrokhimiya, 10, p. 1745 Hahn, Floner, Beden, Lamy, (1987) Electrochimica Acta, 32, p. 1631 Horanyi, Investigation of the effects of heat treatment on the β-Ni(OH)2-β-NiOOH system using IR spectroscopy (1989) Thermochimica Acta, 142, p. 143 de Torresi, Gorenstein, Torresi, Vazquez, (1991) J. Electroanal. Chem., 318, p. 131 Scarminio, Gorenstein, Decker, Passerini, Pileggi, Scrosati, <title>Cation intercalation in electrochromic NiO<formula><roman>x</roman></formula> films</title> (1991) Proc. SPIE, 1536, p. 70 Polo da Fonseca, De Paoli, Gorenstein, Torresi, <title>Electrochromism in cobalt oxyhydroxide thin films</title> (1991) Proc. SPIE, 1536, p. 104 Bockris, Otagawa, (1984) J. Electrochem. Soc., 131, p. 290 Le Bihan, Figlarz, (1973) Thermochim. Acta, 6, p. 319 Bockris, Reddy, (1977) Modern Electrochemistry, 1. , Plenum Press, New York Bewick, Gutiérrez, Larramona, (1992) J. Electroanal. Chem., 332, p. 155 Bewick, Gutiérrez, Larramona, (1992) J. Electroanal. Chem., 333, p. 165 Marcus, (1985) Ion Solvation, , Wiley-Interscience, London Wen, Campet, Poitier, Couturier, Goodenough, (1992) Mater. Sci. Eng. B, 14, p. 115 Zhang, (1982) Inorg. Chem., 21, p. 3886 Zhang, (1982) Inorg. Chem., 21, p. 3889 Ahirens, The use of ionization potentials Part 1. Ionic radii of the elements (1952) Geochimica et Cosmochimica Acta, 2, p. 155