Evidence of bilayer structure in V2O5 xerogel

被引：75

作者：

Giorgetti, M

Passerini, S

Smyrl, WH

Berrettoni, M

机构：

[1] Univ Minnesota, Dept Chem Engn & Mat Sci, Minneapolis, MN 55455 USA

[2] Univ Bologna, Dept Phys & Inorgan Chem, I-40136 Bologna, Italy

来源：

INORGANIC CHEMISTRY | 2000年 / 39卷 / 07期

关键词：

D O I：

10.1021/ic9913233

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Polarized X-ray absorption spectroscopy has been used to study the short-range structure of deposited films of V2O5 xerogel. The material is characterized by a layer of VO5 units with the V-O epical bond perpendicular to the basal try) plane. We have focused our attention along the z axis. Experiments were carried out by extended X-ray absorption fine structure (EXAFS) spectroscopy in a grazing incidence geometry and showed evidence for close interactions between neighboring layers of V2O5. The structure is described by two sheets of V2O5 facing each other. Fitting of the EXAFS data has confirmed the existence of a vanadium-vanadium interaction between two different V2O5 layers and an oxygen bridge between them,

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页码：1514 / 1517

页数：4

相关论文

共 24 条

[1] CRYSTAL STRUCTURE OF A NEW SILVER VANADIUM OXIDE BRONZE AG1-XV205 (X APPROXIMATELY 0.32) [J].

ANDERSSON, S .

ACTA CHEMICA SCANDINAVICA, 1965, 19 (06) :1371-+

[2] Hydrothermal synthesis of vanadium oxides [J].

Chirayil, T ;

Zavalij, PY ;

Whittingham, MS .

CHEMISTRY OF MATERIALS, 1998, 10 (10) :2629-2640

[3] In situ vanadium K-edge and tungsten L(III)-edge X-ray absorption fine structure of vanadium-substituted heteropolytungstates immobilized in a high-area carbon electrode in acid aqueous electrolytes [J].

Clinton, DE ;

Tryk, DA ;

Bae, IT ;

Urbach, FL ;

Antonio, MR ;

Scherson, DA .

JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (47) :18511-18514

[4] Doped vanadium oxides as host materials for lithium intercalation [J].

Coustier, F ;

Hill, J ;

Owens, BB ;

Passerini, S ;

Smyrl, WH .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1999, 146 (04) :1355-1360

[5]

COUSTIER F, 1999, SOLID STATE IONICS, V279, P116

[6] X-ray-absorption spectroscopy and n-body distribution functions in condensed matter .1. Theory [J].

Filipponi, A ;

DiCicco, A ;

Natoli, CR .

PHYSICAL REVIEW B, 1995, 52 (21) :15122-15134

[7] STATISTICAL ERRORS IN X-RAY-ABSORPTION FINE-STRUCTURE DATA-ANALYSIS [J].

FILIPPONI, A .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1995, 7 (48) :9343-9356

[8] VANADIUM PENTOXIDE AND VANADIUM-OXIDE BRONZES STRUCTURAL CHEMISTRY OF SINGLE (S) AND DOUBLE (D) LAYER MXV2O5 PHASES [J].

GALY, J .

JOURNAL OF SOLID STATE CHEMISTRY, 1992, 100 (02) :229-245

[9] Identification of an unconventional zinc coordination site in anhydrous ZnxV2O5 aerogels from X-ray absorption spectroscopy [J].

Giorgetti, M ;

Passerini, S ;

Smyrl, WH ;

Berrettoni, M .

CHEMISTRY OF MATERIALS, 1999, 11 (08) :2257-2264

[10] In situ X-ray absorption spectroscopy characterization of V2O5 xerogel cathodes upon lithium intercalation [J].

Giorgetti, M ;

Passerini, S ;

Smyrl, WH ;

Mukerjee, S ;

Yang, XQ ;

McBreen, J .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1999, 146 (07) :2387-2392