Химия \ Химия и технология олигомеров

Electrochemistry of Room-Temperature/ Articles about substances designated as ionic liquids have begun to appear with increasing regularity in chemistry journals around the world, страница 27

A

area (cm2)

C*

bulk concentration (mol cm-3)

Cj*

bulk concentration of species j (mol cm-3)

D

diffusion coefficient (cm2 s-1)

Dj

diffusion coefficient of species j (cm2 s-1)

E

electrode potential versus some reference electrode (V) 

E1/2

half-wave potential (V)

E0'

formal potential (V)

Ep

peak potential (V)

Ep/2

potential at i = ip/2 (V)

Epa

anodic peak potential (V)

Epc

cathodic peak potential (V)

Eeq

equilibrium potential in a solution containing a redox couple (V)

F

Faraday constant (96485 C)

i

current (A)

i(t)

current as a function of time (A)

ip

peak current (A)

ip/2

half-peak peak current (A)

ipa

anodic peak current (A)

ipc

cathodic peak current (A)

isp

current at the switching potential (A) 

ila

anodic limiting current (A)

ilc

cathodic limiting current (A)

ik

kinetically limited current (A)

j

current density (A cm-2)

jm

maximum current density (A cm-2) 

kf(E)

potential dependent heterogeneous rate constant for forward reaction (cm s-1)

k0

standard heterogeneous rate constant (cm s-1)

n

number of electrons in an electrode reaction

R

molar gas constant (8.314 J mol-1 K-1)

T

absolute temperature (K)

t

time (s)

tm

time at maximum current density (s) 

t0

nucleation delay time (s)

t'

corrected time = t – t0 (s)

tm'

corrected time = tm – t0 (s)

υ

kinematic viscosity (cm2 s-1) 

x

dimensionless time of the maximum

α

(i) dimensionless parameter; (ii) transfer coefficient 

η

overpotential (V)

ν

potential scan rate (V s-1)

ω

angular frequency of rotation (s-1)

REFERENCES

1

K. R. Seddon, Nature Mater. 2 (2003) 363. 2

R. D. Rogers and K. R. Seddon, Science 302 (2003) 792. 3

J.  S. Wilkes, Green Chem. 4 (2002) 73. 4

K.  Ui, M. Ueda, R. Hagiwara, and M. Mizuhata, Molten Salts 47 (2004) 114 (in Japanese). 5 V. C. Reinsborough, Rev. Pure and Appl. Chem. 18 (1968) 281. 

6

H. L. Chum and R. A. Osteryoung, “Chemical and Electrochemical Studies in Room Temperature Aluminum-Halide-Containing Melts,” in: Ionic Liquids, p. 407, D. Inman and D. G. Lovering, eds., Plenum Press, New York, 1981. 7

C.  L. Hussey, “Room Temperature Molten Salt Systems,” in: Advances in Molten Salt Chemistry, Vol. 5, p. 185, G. Mamantov and C. B. Mamantov, eds., Elsevier, Amsterdam, 1983. 8

D.  G. Lovering and R. J. Gale, “Introduction,” in: Molten Salt Techniques, Vol. 1, p. 1, D. G. Lovering and R. J. Gale, eds., Plenum Press, New York, 1983.  9

R. J. Gale and R. A. Osteryoung, “Haloaluminates,” in: Molten Salt Techniques, Vol. 1, p. 55, D. G. Lovering and R. J. Gale, eds., Plenum Press, New York, 1983. 10 P. Tissot, “Ionized Organic Salts,” in: Molten Salt Techniques, Vol. 1, p. 137, D.

G. Lovering and R. J. Gale, eds., Plenum Press, New York, 1983. 11

Скачать файл