The use of rotating disc electrodes for the study of the kinetics of sorption processes ion-exchange of iron III on Dowex 50W X8 in acid media

1972 ◽  
Vol 37 (1) ◽  
pp. 123-128 ◽  
Author(s):  
F. Vydra ◽  
M. Štulíková
Keyword(s):  
Ion Exchange ◽  
Rotating Disc ◽  
Acid Media ◽  
Disc Electrodes ◽  
Kinetics Of ◽  
Kinetics Of Sorption

The kinetics of sorption by ion exchange resin beds

AIChE Journal ◽  
1966 ◽  
Vol 12 (2) ◽  
pp. 304-308 ◽  
Author(s):  
Charles J. Colwell ◽  
Joshua S. Dranoff
Keyword(s):  
Ion Exchange ◽  
Exchange Resin ◽  
Ion Exchange Resin ◽  
Kinetics Of ◽  
Kinetics Of Sorption

The Electrochemistry of Copper in Aqueous Sulphide Solutions

2006 ◽  
Vol 932 ◽  
Author(s):  
J. Smith ◽  
Z. Qin ◽  
F. King ◽  
L. Werme ◽  
D.W. Shoesmith
Keyword(s):  
Film Growth ◽  
Electrochemical Impedance ◽  
Analytical Techniques ◽  
Surface Concentration ◽  
Copper Surface ◽  
Rotating Disc ◽  
Solution Interface ◽  
Transport Control ◽  
Disc Electrodes ◽  
Kinetics Of

ABSTRACTUsing a variety of electrochemical and surface analytical techniques, the mechanism and kinetics of Cu corrosion in anoxic, aqueous, sulphide-containing environments are being investigated. Under these conditions ([S]total = 10−4 to 3 ×10−3 mol/L), the anodicgrowth ofa film (XRD identifies Cu2S/Cu1.8S as major/minor phases, respectively) is supported by the cathodic reduction of water thereby destabilizing the copper surface. For more oxidizing conditions, the subsequent growth of a partially passivating film is observed. Electrochemical impedance spectroscopy (EIS) and cyclic voltammetry at rotating disc electrodes show film growth occurringwith negligible dissolution and under partial SH- transport control. Current-potentialrelationships as a function of [S]total give Tafel slopes of ∼ (40 mV)−1 suggesting reaction occurs via a 2step process: Aninitial rapid adsorption of SH- leading to an equilibrium surface concentration, followed by a rate determining electron transfer to form a sulphide film. It is proposed thatfilm growth propagates via transport of CuI through the film to the solution interface. The primary goal of this research is the development of a mathematical model which can be used to assess the performance of copper nuclear waste canisters in granitic repositories.

Kinetics of sorption of certain polyphenols on ion-exchange resins

1976 ◽  
Vol 10 (2) ◽  
pp. 215-218
Author(s):  
P. A. Yavich ◽  
A. G. Sarabunovich ◽  
P. Z. Beridze
Keyword(s):  
Ion Exchange ◽  
Ion Exchange Resins ◽  
Exchange Resins ◽  
Kinetics Of ◽  
Kinetics Of Sorption

Kinetics of sorption of benzene and n-paraffins in large crystals of MFI zeolites

Zeolites ◽  
1990 ◽  
Vol 10 (8) ◽  
pp. 798-801 ◽  
Author(s):  
K. Beschmann ◽  
S. Fuchs ◽  
L. Riekert
Keyword(s):  
Mfi Zeolites ◽  
Kinetics Of ◽  
Kinetics Of Sorption
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