SURFACE-STRUCTURES ON TITANIUM-DIOXIDE ELECTRODES AFTER ELECTROCHEMICAL SILVER DEPOSITION

被引：15

作者：

POROSHKOV, VP

GURIN, VS

机构：

[1] Physico-Chemical Research Institute, Belarusian State University, 220080 Minsk, Leningradskaja street

来源：

SURFACE SCIENCE | 1995年 / 331卷

关键词：

DENDRITIC AND OR FRACTILE SURFACES; ELECTROCHEMICAL METHODS; ELECTRON MICROSCOPY; GROWTH; METAL-SEMICONDUCTOR NONMAGNETIC HETEROSTRUCTURES; NUCLEATION; POLYCRYSTALLINE SURFACES; SEMICONDUCTOR-ELECTROLYTE INTERFACES; SILVER; SURFACE STRUCTURE; TITANIUM; TITANIUM OXIDE; X-RAY PHOTOELECTRON SPECTROSCOPY;

D O I：

10.1016/0039-6028(95)00370-3

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：

Selective silver deposition on the surface of titanium dioxide electrodes provides the possibility to create various structures due to the adjustment of deposition conditions: type of TiO2 film, current density, external UV-irradiation or modification by the predeposition of silver particles. We observed the formation of ultrafine Ag under small current and fractal deposits under the diffusion-limited mode. Features of the Ag state on the electrodes are studied by TEM, STM, and XPS. The selectivity effect of the deposition is explained by the formation of a specific Ag-TiO2 structure with strong metal-support interaction.

引用

页码：1520 / 1525

页数：6

共 25 条

[1] VALENCE BAND FORMATION IN SMALL SILVER CLUSTERS [J].