Compensation Effect in H2 Permeation Kinetics of PdAg Membranes

2012 ◽  
Vol 116 (34) ◽  
pp. 18101-18107 ◽  
Author(s):  
Gaofeng Zeng ◽  
Andreas Goldbach ◽  
Lei Shi ◽  
Hengyong Xu
Keyword(s):  
Compensation Effect ◽  
Kinetics Of ◽  
Permeation Kinetics

scholarly journals Correction to “Compensation Effect in H2 Permeation Kinetics of PdAg Membranes”

2019 ◽  
Vol 123 (7) ◽  
pp. 4620-4621
Author(s):  
Gaofeng Zeng ◽  
Andreas Goldbach ◽  
Lei Shi ◽  
Hengyong Xu
Keyword(s):  
Compensation Effect ◽  
Kinetics Of ◽  
Permeation Kinetics

Kinetics of Ion-Pair Effect of Aquation of Bromopentaammine Cobalt(III) Complex in Different Dicarboxylate Media

2011 ◽  
Vol 324 ◽  
pp. 166-169 ◽  
Author(s):  
Farah Zeitouni ◽  
Gehan El-Subruiti ◽  
Ghassan Younes ◽  
Mohammad Amira
Keyword(s):  
Free Energy ◽  
Solvent Effect ◽  
Compensation Effect ◽  
Ion Pairing ◽  
Reaction Rates ◽  
Ion Pair ◽  
Free Energy Of Activation ◽  
Different Types ◽  
Different Temperatures ◽  
Kinetics Of

The rate of aquation of bromopentaammine cobalt(III) ion in the presence of different types of dicarboxylate solutions containing tert-butanol (40% V/V) have been measured spectrophotometrically at different temperatures (30-600°C) in the light of the effects of ion-pairing on reaction rates and mechanism. The thermodynamic and extrathermodynamic parameters of activation have been calculated and discussed in terms of solvent effect on the ion-pair aquation reaction. The free energy of activation ∆Gip* is more or less linearly varied among the studied dicarboxylate ion-pairing ligands indicating the presence of compensation effect between ∆Hip* and ∆Sip*. Comparing the kip values with respect of different buffers at 40% of ter-butanol is introduced.

Differences In Permeation Kinetics of Cryoprotective Solutions In Equine Oocytes Compared To That In Ovarian Tissue

Cryobiology ◽  
2021 ◽  
Vol 103 ◽  
pp. 186
Author(s):  
Harriëtte Oldenhof ◽  
Jürgen Lotz ◽  
Sercan Içli ◽  
Dejia Liu ◽  
Sükrü Caliskan ◽  
...  
Keyword(s):  
Ovarian Tissue ◽  
Kinetics Of ◽  
Permeation Kinetics

Effect of enhancers on permeation kinetics of captopril for transdermal system

2008 ◽  
Vol 2 (1) ◽  
pp. 35 ◽  
Author(s):  
BM Dinesh ◽  
BG Desai ◽  
AR Annamalai ◽  
B Divya
Keyword(s):  
Kinetics Of ◽  
Permeation Kinetics

Analysis of the Electrode Kinetics of Ni(II) Reduction in Thiocyanate Media on the Dropping Mercury Electrode

2000 ◽  
Vol 65 (3) ◽  
pp. 326-342
Author(s):  
María S. Crespo-Pinilla ◽  
Fernando Mata-Pérez ◽  
Rosa M. Villamañán
Keyword(s):  
Ionic Strength ◽  
Compensation Effect ◽  
Supporting Electrolyte ◽  
Mercury Electrode ◽  
Electrode Kinetics ◽  
Surface Process ◽  
Experimental Conditions ◽  
Dropping Mercury Electrode ◽  
Kinetics Of

A study of two prewaves of the Ni(II)-SCN- system was carried out under the experimental conditions when the influence of electroreduction of SCN- is negligible. Kinetics of Ni(II) reduction in thiocyanate media on the dropping mercury electrode was studied by DC Tast Polarography (DCTP) via determination of Koutecký's parameter χ; the influence of different variables was analyzed. The study of prewaves was performed using various polarographic techniques. Values of χ depend on the SCN- concentration, pH, ionic strength (Ψ-effect) and on the nature of the supporting electrolyte. The number of electrons n, the transfer coefficient α, the stoichiometric number ν, ∆H≠, and ∆S≠ were determined (compensation effect). The first prewave has character of a reaction in the solution, the second prewave is a surface process. Main features of both mechanisms are common: catalytic nature, one-electron step discharge and the rate-determining process between species of opposite charges.

Sign in / Sign up

Export Citation Format

Share Document