Modeling of the dissolution of oxide phases I. Electrochemical model of the dissolution of copper(II) oxides in acidic media

Journal Article · Thu Dec 01 00:00:00 EST 1994 · Inorganic Materials

OSTI ID:135582

Gorichev, I G; Dorofeev, M V; Batrakov, V V ^[1]; Shaplygin, I S ^[2]; Nevskaya, E Yu ^[3]

---

1. Moscow State Pedagogical Univ. (Russian Federation)
2. Kurnakov Institute of General and Inorganic Chemistry, Moscow (Russian Federation)
3. Univ. of Peoples` Friendship, Moscow (Russian Federation)

Suggested in this report is a theoretical substantiation of the change in the order of reaction with respect to hydrogen ions in the reaction of Cu(II) oxides with electrolytes. This idea is based on the electrochemical concepts concerning the structure of the electrical double layer (EDL). It was shown that during the dissolution of Cu(II) oxides in acidic media, the order of reaction with respect to hydrogen ions changes from 0.5 to 1.5 as the pH of the solution grows. This change is correlated with the charge acquired by the oxide-electrolyte solution interface. The developed concepts can be applied to describing dissolution kinetics for other oxides.

• OSTI ID: 135582
• Journal Information: Inorganic Materials, Vol. 30, Issue 12; Other Information: PBD: Dec 1994; TN: Translated from Neorganicheskie Materialy; 30: No. 12, 1491-1497(1994)
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
40 CHEMISTRY
COPPER OXIDES
DISSOLUTION
REACTION KINETICS
ELECTROLYTES
HYDROGEN IONS
PH VALUE
INTERFACES
ION EXCHANGE
DIFFUSION