COADSORPTION OF PERCHLORATE AND BISULFATE IONS WITH TL ADATOMS ON PT(111) - A SNIFTERS STUDY

Authors
MARINKOVIC NS FAWCETT WR WANG JX ADZIC RR
Citation
Ns. Marinkovic et al., COADSORPTION OF PERCHLORATE AND BISULFATE IONS WITH TL ADATOMS ON PT(111) - A SNIFTERS STUDY, Journal of physical chemistry, 99(49), 1995, pp. 17490-17493
Citations number
20
Categorie Soggetti
Chemistry Physical
Journal title
Journal of physical chemistry → ACNP
ISSN journal
00223654
Volume
99
Issue
49
Year of publication
1995
Pages
17490 - 17493
Database
ISI
SICI code
0022-3654(1995)99:49<17490:COPABI>2.0.ZU;2-V
Abstract
In situ reflection infrared spectroscopy with electrochemical modulati on has been used to investigate the coadsorption of anions for the sys tem Tl-ads/Pt(111) in dilute sulfuric and perchloric acids. For the fi rst time evidence of coadsorption of perchlorate induced by underpoten tially deposited Tl atoms is reported. The spectroscopic data show tha t the platinum surface is covered by Tl adatoms and by perchlorate or bisulfate from E = 0.4 V up to the onset of the Tl stripping peak. The possible structures of the Tl-ClO4 and Tl-HSO4 adlayers at Pt(111) ar e discussed.