REDOX TRANSFORMATIONS OF VANADIUM SPECIES AT THE RUTILE SURFACE

被引：15

作者：

HABER, J

NOWAK, P

机构：

[1] Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, Kraków, 30239

来源：

CATALYSIS LETTERS | 1994年 / 27卷 / 3-4期

关键词：

VANADIUM OXIDE RUTILE CATALYST; MONOLAYERS OF VANADIUM SPECIES; REDOX TRANSFORMATIONS OF VANADIUM SPECIES; VOLTAMMETRY OF VANADIUM SPECIES;

D O I：

10.1007/BF00813924

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Redox transformations of vanadium species, deposited on the surface of a rutile monocrystal by annealing rutile with V2O5 were investigated by cyclic voltammetry. Two different vanadium species were observed at the surface: first, present in the crystal lattice of rutile, which undergoes the redox transformation V4+/V3+ only, and the second, present at the surface, which undergoes both the V5+/V4+ and V4+/V3+ redox transformations. The latter appears only when the subsurface layer becomes saturated with the former.

引用

页码：369 / 375

页数：7

共 15 条

[1]

[Anonymous], 1980, ELECTROCHEMISTRY SEM

[2]

ANTHONY AM, 1972, PREPARATORY METHODS, P157

[3] STRUCTURE AND REACTIVITY OF TITANIA-SUPPORTED OXIDES .1. VANADIUM-OXIDE ON TITANIA IN THE SUBMONOLAYER AND SUPER-MONOLAYER REGIONS [J].