EMISSION FTIR STUDIES ON THE FORMATION MECHANISM OF IRO2/TIO2 BASED COATINGS

被引：32

作者：

KRISTOF, J

MINK, J

DEBATTISTI, A

LISZI, J

机构：

[1] UNIV FERRARA,DIPARTMENTO CHIM,I-44100 FERRARA,ITALY

[2] CTR STUDIO FOTOCHIM & REATTIVITA STATI ECCITATI C,I-44100 FERRARA,ITALY

[3] UNIV VESZPREM,DEPT CHEM PHYS,H-8201 VESZPREM,HUNGARY

来源：

ELECTROCHIMICA ACTA | 1994年 / 39卷 / 11-12期

关键词：

ELECTROCATALYSIS; EMISSION FTIR; THIN FILMS; ELECTRODE COATINGS; MIXED OXIDE FILMS;

D O I：

10.1016/0013-4686(94)85131-X

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The formation reactions of IrO2/TiO2 mixed oxide films supported on metal titanium plate were followed by emission FTIR method. Coatings of the composition 50% Ir + 50% Ti obtained by thermal decomposition from the precursor mixture of IrCl(3)x3H(2)O/titanium(di-isopropoxide) bis-2,4-pentanedionate were preheated to 210, 392 and 500 degrees C. At 21O degrees C-in addition to 2,4-pentanedionate-the presence of surface carbonyls as a result of decomposition of solvent (isopropanol) chemisorbed to iridium was confirmed. At 500 degrees C the negative emission bands of rutile prove the occurrence of a surface segregation phenomenon resulting in a TiO2 (or a TiO2-enriched) surface layer. The conversion of IrCl3 to IrO2 was also followed.

引用

页码：1531 / 1535

页数：5

共 7 条

[1] INFLUENCE OF THE VALVE METAL-OXIDE ON THE PROPERTIES OF RUTHENIUM BASED MIXED-OXIDE ELECTRODES .2. RUO2/TIO2 COATINGS [J].