文档介绍：电化学实验报告实验报告
H
G
F
E
D
C
A
B
/
t
A
n
e
r
r
u
C
-
-
Potential/V
From the CV curves, fill the table
Scan rate
(mV/s)
20
50
100
200
H---600mv/s
G---500mv/s
t
aF---400mv/s
R
E---300mv/s
n
a
D---200mv/s
c
S
C---100mv/s
B--- 50 mv/s
A--- 20 mv/s
- -
300 400 500 600
Peak
Ipc
current
Ipa
-
-
-
-
-
-
-
-
(uA)
Ratio of Peak
current
Peak
V1
voltag
V2
E(V)
Peak voltage
71
66
68
72
75
76
79
79
difference (mV)
According to the result, describe why curves shows certain trend, and how peak current and peak voltage difference change with scan rate?
Answer: From above data and curve, we can obtain:
At a fixed scan rate : (1).from initial positive voltage to more reductive values, the current begin to