Electrochromism of CeVO4 and Ce/V-Oxide ion-storage films prepared by the sol-gel route

U. Opara Krašovec; B. Orel; R. Reisfeld

Electrochromism of CeVO₄ and Ce/V-Oxide ion-storage films prepared by the sol-gel route

U. Opara Krašovec^*
, B. Orel
, R. Reisfeld

^*Corresponding author for this work

Institute of Chemistry

Research output: Contribution to journal › Article › peer-review

38 Scopus citations

Abstract

CeVO₄ prepared via the sol-gel route with a tetragonal (I4₁/amd) crystal structure was found to act as an ion-storage material. The structure of powders and films having different Ce/V molar ratios was determined using X-ray diffractometry. Cyclic voltammograms of films allowed for distinguishing between the Ce⁴⁺/Ce³⁺ and V⁵⁺/V⁴⁺ redox changes. In situ ultraviolet/visible spectro-electrochemical measurements confirmed the presence of V⁵⁺/V⁴⁺ redox changes in tetragonai CeVO₄ films. The small (∼0.1 to 0.5 cm²/C) coloration efficiency of CeVO₄ films suggests their utilization as counter electrodes with optically passive responses in electrochromic devices.

Original language	English
Pages (from-to)	104-106
Number of pages	3
Journal	Electrochemical and Solid-State Letters
Volume	1
Issue number	2
State	Published - Aug 1998

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title = "Electrochromism of CeVO4 and Ce/V-Oxide ion-storage films prepared by the sol-gel route",

abstract = "CeVO4 prepared via the sol-gel route with a tetragonal (I41/amd) crystal structure was found to act as an ion-storage material. The structure of powders and films having different Ce/V molar ratios was determined using X-ray diffractometry. Cyclic voltammograms of films allowed for distinguishing between the Ce4+/Ce3+ and V5+/V4+ redox changes. In situ ultraviolet/visible spectro-electrochemical measurements confirmed the presence of V5+/V4+ redox changes in tetragonai CeVO4 films. The small (∼0.1 to 0.5 cm2/C) coloration efficiency of CeVO4 films suggests their utilization as counter electrodes with optically passive responses in electrochromic devices.",

author = "\{Opara Kra{\v s}ovec\}, U. and B. Orel and R. Reisfeld",

year = "1998",

month = aug,

language = "אנגלית",

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pages = "104--106",

journal = "Electrochemical and Solid-State Letters",

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T1 - Electrochromism of CeVO4 and Ce/V-Oxide ion-storage films prepared by the sol-gel route

AU - Opara Krašovec, U.

AU - Orel, B.

AU - Reisfeld, R.

PY - 1998/8

Y1 - 1998/8

N2 - CeVO4 prepared via the sol-gel route with a tetragonal (I41/amd) crystal structure was found to act as an ion-storage material. The structure of powders and films having different Ce/V molar ratios was determined using X-ray diffractometry. Cyclic voltammograms of films allowed for distinguishing between the Ce4+/Ce3+ and V5+/V4+ redox changes. In situ ultraviolet/visible spectro-electrochemical measurements confirmed the presence of V5+/V4+ redox changes in tetragonai CeVO4 films. The small (∼0.1 to 0.5 cm2/C) coloration efficiency of CeVO4 films suggests their utilization as counter electrodes with optically passive responses in electrochromic devices.

AB - CeVO4 prepared via the sol-gel route with a tetragonal (I41/amd) crystal structure was found to act as an ion-storage material. The structure of powders and films having different Ce/V molar ratios was determined using X-ray diffractometry. Cyclic voltammograms of films allowed for distinguishing between the Ce4+/Ce3+ and V5+/V4+ redox changes. In situ ultraviolet/visible spectro-electrochemical measurements confirmed the presence of V5+/V4+ redox changes in tetragonai CeVO4 films. The small (∼0.1 to 0.5 cm2/C) coloration efficiency of CeVO4 films suggests their utilization as counter electrodes with optically passive responses in electrochromic devices.

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AN - SCOPUS:0003054482

SN - 1099-0062

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EP - 106

JO - Electrochemical and Solid-State Letters

JF - Electrochemical and Solid-State Letters

IS - 2

ER -

Electrochromism of CeVO₄ and Ce/V-Oxide ion-storage films prepared by the sol-gel route

Abstract

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