Electrochemical Studies on Kinetics and Diffusion of Li-Ions in MnO2 Electrodes

2019 ◽  
Vol 166 (12) ◽  
pp. A2629-A2635
Author(s):  
Daulatabad Narsimulu ◽  
Sourav Ghosh ◽  
Madhushri Bhar ◽  
Surendra K. Martha
Keyword(s):  
Electrochemical Studies ◽  
And Diffusion

Electrochemical studies of molten salts. III. E.M.F.'s of concentration cells with transference and diffusion potentials for PbCl2+CsCl mixtures

1968 ◽  
Vol 21 (11) ◽  
pp. 2649
Author(s):  
H Bloom ◽  
AJ Easteal
Keyword(s):  
Mole Fraction ◽  
Molten Salts ◽  
Ionic Species ◽  
Electrolyte Composition ◽  
Lead Chloride ◽  
Electrochemical Studies ◽  
Diffusion Potentials ◽  
Straight Lines ◽  
And Diffusion ◽  
Concentration Cells

The e.m.f.'s of concentration cells with transference containing PbC12 + CsCl molten mixtures have been measured as functions of temperature and electrolyte composition. Graphs of cell e.m.f. against temperature are sets of intersecting straight lines, as are graphs of cell e.m.f. against the negative logarithm of the mole fraction of PbCl2. Diffusion potentials for junctions between pure molten PbCl2 and molten PbCl2 + CsCl mixtures have been determined, as functions of temperature and mixture composition. The results are interpreted to indicate the existence of complex lead-chloride ionic species in the mixtures.

scholarly journals Electrochemical Studies of o- and p- Anisidine

2015 ◽  
Vol 3 (2) ◽  
pp. 267-271
Author(s):  
Richa Sharma ◽  
Sushma Dave
Keyword(s):  
Cyclic Voltammetry ◽  
Electrochemical Oxidation ◽  
Platinum Electrode ◽  
Linear Sweep Voltammetry ◽  
Electrochemical Studies ◽  
Oxidation Peak ◽  
Cathodic Peak ◽  
Linear Sweep ◽  
And Diffusion ◽  
Sensitive Method

Electrochemical oxidation of methyl substituted aniline (anisidine) has been done on both gold and platinum electrode using cyclic voltammetry. The results were compared in different supporting electrolytes such as KCl, KNO3, H2SO4, HCl. Effect of pH was observed on electrochemical oxidation of o- & p- anisidine at gold and platinum electrode. During various scan single oxidation peak during first forward scan with no corresponding cathodic peak was obtained while a new anodic cathodic couple peak appears in subsequent scan obtained. Kinetic parameters like heterogeneous rate constant, transfer co-efficient and diffusion co-efficient were also calculated. A sensitive method was developed for estimation of micro quantities of anisidine by linear sweep voltammetry and hydrodynamic voltammetry.Int J Appl Sci Biotechnol, Vol 3(2): 267-271 DOI: http://dx.doi.org/10.3126/ijasbt.v3i2.12615 

Electrochemical studies of molten salts. IV. Electromotive forces of concentration cells with transference and diffusion potentials for PbCl2+KCl mixtures

1969 ◽  
Vol 22 (4) ◽  
pp. 681 ◽  
Author(s):  
AJ Easteal ◽  
SJ Heron
Keyword(s):  
Mole Fraction ◽  
Molten Salts ◽  
Ionic Species ◽  
Electrolyte Composition ◽  
Published Data ◽  
Electrochemical Studies ◽  
Diffusion Potentials ◽  
Straight Lines ◽  
And Diffusion ◽  
Concentration Cells

The e.m.f.'s of concentration cells with transference containing PbCl2+KCl molten mixtures have been measured as functions of temperature and electrolyte composition, and compared with previously published data. Graphs of cell e.m.f. against temperature are sets of intersecting straight lines, as are graphs of cell e.m.f. against the negative logarithm of the mole fraction of PbCl2. ��� Diffusion potentials for junctions between pure PbCl2 and PbCl2+KCl mixtures have been evaluated, as functions of temperature and mixture composition. ��� The interpretation of the results supports the hypothesis of the existence of complex lead-chloro ionic species in the electrolytes.

Meridional Circulation, Turbulence, and Diffusion Processes in Stars

1976 ◽  
Vol 32 ◽  
pp. 109-116 ◽  
Author(s):  
S. Vauclair
Keyword(s):  
Convection Zone ◽  
Diffusion Processes ◽  
Meridional Circulation ◽  
Diffusion Time ◽  
Work In Progress ◽  
First Results ◽  
Stellar Envelopes ◽  
And Diffusion ◽  
Turbulence And Diffusion ◽  
Hr Diagram

This paper gives the first results of a work in progress, in collaboration with G. Michaud and G. Vauclair. It is a first attempt to compute the effects of meridional circulation and turbulence on diffusion processes in stellar envelopes. Computations have been made for a 2 Mʘstar, which lies in the Am - δ Scuti region of the HR diagram.Let us recall that in Am stars diffusion cannot occur between the two outer convection zones, contrary to what was assumed by Watson (1970, 1971) and Smith (1971), since they are linked by overshooting (Latour, 1972; Toomre et al., 1975). But diffusion may occur at the bottom of the second convection zone. According to Vauclair et al. (1974), the second convection zone, due to He II ionization, disappears after a time equal to the helium diffusion time, and then diffusion may happen at the bottom of the first convection zone, so that the arguments by Watson and Smith are preserved.

Ordering and diffusion in II-VI/III-VI alloys with structural vacancies

1997 ◽  
Vol 101-103 (1-2) ◽  
pp. 479-487
Author(s):  
H v. Wensierski
Keyword(s):  
And Diffusion
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