NC200
Work Progress – Improving
Drying Technique
Carbon Team
Imran Syakir Mohamad, Norli Abdullah
Objective
•
Improve yield & quality of CNF/CNT
produced
–
Better dispersion of CNF/CNT
–
High CNF/CNT yield
–
CNF
CNT
NC200 Work Flow Diagram
Synthesis
UTP Parameter
Precursor (Fe)
Excess Solvent
Acetate
Nitrate
Wt % Cat.
1
3
5
1/9mL
1/3mL
%H2 loading
Red. Temp (
o
C)
5%
10%
20%
300
500
700
Red. Time (min)
60
90
120
Drying Technique
Convectional Oven
Drynoza
•
To reduce drying time
•
To Improve drying process
for better catalyst dispersion
onto substrate
•
To optimize the optimum temp
for Fe reduction
•
To improve yield & quality of
CNF/CNT
•
To improve yield & quality
of CNF/CNT
Drying Technique
Synthesis
UTP Parameter
Precursor (Fe)
Excess Solvent
Acetate
Nitrate
Wt % Cat.
1
3
5
1/9mL
1/3mL
%H2 loading
Red. Temp (
o
C)
5%
10%
20%
300
500
700
Red. Time (min)
60
90
120
Drying Technique
Convectional Oven
Drynoza
Problem
Bad catalyst dispersion
Objective
To Improve drying process for better catalyst
dispersion onto substrate
•
Previous Tech
–
Oven
–
45
o
C, Horizontal
ventilation
•
New Tech
–
Drynoza
–
RT, vertical ventilation
Result
•
Catalyst Dispersion Improved
No sign of track of dried Fe salt
deposited on the bottles.
WEIGHT % CAT. LOADING
&
% H2 LOADING
Synthesis
UTP Parameter
Precursor (Fe)
Excess Solvent
Acetate
Nitrate
Wt % Cat.
1
3
5
1/9mL
1/3mL
%H2 loading
Red. Temp (
o
C)
5%
10%
20%
300
500
700
Red. Time (min)
60
90
120
Drying Technique
Convectional Oven
Drynoza
SEM (Diff. wt%, 5% H2)
1 wt %
3 wt %
5 wt %
D increased
SEM (1 wt%, different H2 loading)
5 %
10 %
20 %
In Progress
Yield
increased
Better
Dispersion
C
a
l
c
i
n
a
t
i
o
n
R
e
d
u
c
t
i
o
n
G
r
o
w
t
h
C
o
o
l
i
n
g
3
0
m
i
n
4
4
m
i
n
6
0
m
i
n
1
0
m
i
n
6
0
m
i
n
1
0
0
m
i
n
6
0
m
i
n
1
2
0
m
i
n
1
3
4
m
i
n
SEM (3 wt%), different H2 loading
5 %
10 %
20 %
In Progress
Yield
increased
Better
Dispersion
C
a
l
c
i
n
a
t
i
o
n
R
e
d
u
c
t
i
o
n
G
r
o
w
t
h
C
o
o
l
i
n
g
3
0
m
i
n
4
4
m
i
n
6
0
m
i
n
1
0
m
i
n
6
0
m
i
n
1
0
0
m
i
n
6
0
m
i
n
1
2
0
m
i
n
1
3
4
m
i
n
SEM (5 wt%), different H2 loading
5 %
10 %
20 %
In Progress
Yield
increased
Better
Dispersion
C
a
l
c
i
n
a
t
i
o
n
R
e
d
u
c
t
i
o
n
G
r
o
w
t
h
C
o
o
l
i
n
g
3
0
m
i
n
4
4
m
i
n
6
0
m
i
n
1
0
m
i
n
6
0
m
i
n
1
0
0
m
i
n
6
0
m
i
n
1
2
0
m
i
n
1
3
4
m
i
n
CNF+CNT
produced
SEM 10% H2 loading
5wt %
1wt %
3wt %
D increased
Mixture
CNF+CNT
produced
CNF
produced
NC2FA9 (5wt%, 10%H2)
NC2FA9 (5wt%, 10%H2)
NC2FA9 (5wt%, 10%H2)
NC2FA9 (5wt%, 10%H2)
96nm
NC2FA9 (5wt%, 10%H2)
65nm
30nm
Future Plan
•
Increase % H2 loading to 20% in the reduction process
•
Increase reduction time to 90 min and 120 min
Synthesis
UTP Parameter
Precursor (Fe)
Excess Solvent
Acetate
Nitrate
Wt % Cat.
1
3
5
1/9mL
1/3mL
%H2 loading
Red. Temp (
o
C)
5%
10%
20%
300
500
700
Red. Time (min)
60
90
120
Drying Technique
Convectional Oven
Drynoza