Thermodynamics and Lithium Intercalation in CeO2-TiO2 Thin Film

被引：1

作者：

Avellaneda, Cesar O. ^{[1
]}

Pawlicka, Agnieszka ^{[1
]}

机构：

[1] Univ Sao Paulo, Inst Quim Sao Carlos, CP 780, BR-13560970 Sao Carlos, SP, Brazil

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2010年 / 521卷

关键词：

Cerium-titanium oxide; kinetics; sol-gel process; thermodynamics; ELECTROCHROMIC DEVICES; TUNGSTEN TRIOXIDE; ION; DIFFUSION; OXIDE; TRANSPORT; COATINGS; WINDOWS;

D O I：

10.1080/15421401003725313

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The kinetics and the thermodynamics of electrochemical intercalation of lithium into CeO2-TiO2 films prepared by the sol-gel process were studied by galvanostatic intermittent titration technique (GITT) as function of the depth of lithium intercalation. The open-circuit-potential versus x in Li-x(CeO2-TiO2) curve consists of two straight lines with different slopes, one in the range of 0.03 <= x <= 0.09 and the other of 0.09 < x <= 0.15. The standard Gibbs energy for lithium intercalation Delta G(1)(0) was 6kJ/mol for x = 0.09 in Li-x(CeO2-TiO2) at room temperature. The chemical diffusion coefficient value, DLi+, of lithium intercalation into thin film oxide was 2.14.10(-11) cm(2)/s at x = 0.15, and the value of the component diffusion coefficient DLi+,(k) was about one order of magnitude lower than the coefficient of chemical diffusion.

引用

页码：112 / 119

页数：8

共 22 条

[1] Lithium intercalation in CeO2-TiO2 thin film [J].

Avellaneda, CO ;

Pawlicka, A .

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 2004, 415 :221-227

[2] DIP-COATED TIO2-CEO2 FILMS AS TRANSPARENT COUNTERELECTRODE FOR TRANSMISSIVE ELECTROCHROMIC DEVICES [J].

BAUDRY, P ;

RODRIGUES, ACM ;

AEGERTER, MA ;

BULHOES, LO .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1990, 121 (1-3) :319-322

[3] Optoelectrochemical characterization of electrochromic devices with starch based solid electrolytes [J].

Costa, RGF ;

Avellaneda, CO ;

Pawlicka, A ;

Heusing, S ;

Aegerter, MA .

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 2006, 447 :363-371

[4] APPLICATION OF AC TECHNIQUES TO THE STUDY OF LITHIUM DIFFUSION IN TUNGSTEN TRIOXIDE THIN-FILMS [J].

HO, C ;

RAISTRICK, ID ;

HUGGINS, RA .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1980, 127 (02) :343-350

[5] Electrochemical intercalation of lithium into hexagonal tungsten trioxide [J].

Kumagai, N ;

Yu, AS ;

Kumagai, N ;

Yashiro, H .

THERMOCHIMICA ACTA, 1997, 299 (1-2) :19-25

[6] Determination of the Li ion chemical diffusion coefficient for the topotactic solid-state reactions occurring via a two-phase or single-phase solid solution pathway [J].

Levi, MD ;

Gamolsky, K ;

Aurbach, D ;

Heider, U ;

Oesten, R .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1999, 477 (01) :32-40

[7] Transparent ion-conducting ceria-zirconia films made by sol-gel technology [J].

Luo, X ;

Zhu, B ;

Xia, C ;

Niklasson, GA ;

Granqvist, CG .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 1998, 53 (3-4) :341-347

[8] ELECTROCHROMIC SMART WINDOWS [J].

MACEDO, MA ;

DALLANTONIA, LH ;

VALLA, B ;

AEGERTER, MA .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1992, 147 :792-798

[9]

MINIO JS, 1992, J ELECTROCHEM SOC, V139, P1236

[10] Transport properties and reactivity of tungsten trioxide [J].

Molenda, J ;

Kubik, A .

SOLID STATE IONICS, 1999, 117 (1-2) :57-64

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