ONLINE DETERMINATION VIA DIFFERENTIAL ELECTROCHEMICAL MASS-SPECTROSCOPY (DEMS) OF CHEMICAL-PRODUCTS FORMED IN PHOTOELECTROCATALYTICAL SYSTEMS

被引：23
作者：
BOGDANOFF, P
ALONSOVANTE, N
机构：
来源：
BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 1993年 / 97卷 / 07期
关键词：
DEMS; MASS SPECTROMETRY; OXYGEN EVOLUTION; PHOTOELECTROCHEMISTRY; TITANIUM DIOXIDE;
D O I：
10.1002/bbpc.19930970716
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：
The evolution of oxygen in acid aqueous solution on thin porous titanium dioxide (anatase) electrodes under illumination was monitored with DEMS. By adding Cl- in the electrolyte, a Cl2 mass signal is additionally observed. This latter increases as a function of Cl- concentration while O2 mass signal decreases, although the photocurrent-potential characteristics remain unchanged. This example illustrates a competitive oxidation which cannot be discriminated by only recording photocurrent-potential curves.
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页码：940 / 942
页数：3
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