ChemInform Abstract: STUDY OF THE ADSORPTION PROPERTIES OF PALLADIUM

Abstract

Durch potentiometiische Titration und Leitfähigkeitsmessungen werden die Adsorptionseigenschaften einer mit Pd überzogenen Pt‐Elektrode in verschiedenen Lösungen (0.1 N NaBr, KCl, Na,SO4, Cs2SO4, BaCl,‐) untersucht.

The kinetics of the electrochemical reduction of perchlorate ions on rhodium

“…Thus far, the majority of the experimental results published in the literature were obtained by using combined voltammetric, amperometric, EQCM, impinging jet and radiotracer methods [4,6,8,9,[25][26][27][28][29][30]31]. For comparison, Fig.…”

“…The characteristic features common to Rh|(HClO 4 solution) systems are as follows [4,5,6,[25][26][27][28][29][30][31]:…”

“…In such studies it is tacitly assumed that ClO 4 − ions are stable under the actual experimental conditions, that is, no reduction of these ions takes place. However, evidence for the occurrence of the reduction process has been reported, e.g., for Rh [6][7][8][9][10][11], Pt [12][13][14][15], Wc [16], Al [17], Ti [18], Ir [19], Ru [20], Re [21], Tc [22] and Sn [23] electrodes. A survey of the literature can be found in reviews [4,24,15].…”

Effect of cadmium and lead adatoms on the reduction kinetics of peroxodisulfate anions at platinized platinum in acid solutions

“…In our case, the inhibition in HClO 4 is much stronger, which requires special discussion. As PCA undergo reduction on Pt/Pt in the hydrogen range [12], the stronger inhibition in HClO 4 is presumably due to adsorbed products of the PCA reduction. As even small H 2 SO 4 additives in HClO 4 terminate the PCA reduction [12], to check the assumption on the role of these products, we added H 2 SO 4 in solutions of HClO 4 .…”

Perchlorate Chemistry: Implications for Analysis and Remediation

“…The electrochemical reduction of perchlorate ion has been reported for a wide variety of cathodes, including platinum (Horányi and Vértes, 1975b;Vasina and Petrii, 1969), tungsten carbide Vértes, 1974, 1975a;Vértes and Horányi, 1974), ruthenium (Gonzales Tejera and Colom Polo, 1984), carbon doped with chromium(III) oxide or aluminum oxide (Mouhandess et al, 1980), aluminum (Kiss et al, 1973), and titanium Tsinman et al, 1975). Brown (1986) showed that chlorate and perchlorate may be reduced successfully to chloride by active titanium, and he discusses the possibility of passivation of the titanium electrode as titanium(IV) forms, presumably from the deposition of titanium dioxide.…”