Abbreviations and Symbols
xiii
MET
Mediated electron transfer
RDS
Rate-determining step
SAM
Self-assembled monolayer
Symbols
Roman Symbols
a
Activity
A
Electrode surface area
c
Concentration
D
Diffusion coefficient
E
◦
Standard redox potential
E
⊕
Biological standard redox potential
E cell
Cell voltage
E L
Lever’s ligand parameter
F
Faraday constant
r G
◦
Standard Gibbs energy of reaction
r G
Biological standard Gibbs energy of reaction
‡ G
◦
X
Standard Gibbs energy of activation
i
Current
i s
Steady-state current
j
Current density
j s
Steady-state current density
k
Reaction rate constant
k 2
Second-order reaction rate constant,
K
Equilibrium constant
K M
Michaelis constant
K S
Semiquinone formation constant
m
Number of protons in reaction
n
Number of electrons in reaction
OCV
Open-circuit potential
P
Permeation coefficient
P max
Maximum power density
r
Radius
R
Gas constant or resistance
t
Time
T
Absolute temperature
x
Distance from electrode surface
v
Reaction rate