nc200 work progress – improving drying technique
DESCRIPTION
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. Synthesis. UTP Parameter. Precursor (Fe). Wt % Cat. Red. Temp ( o C). - PowerPoint PPT PresentationTRANSCRIPT
NC200 Work Progress – Improving
Drying Technique
Carbon TeamImran 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 loadingRed. Temp (oC)
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 loadingRed. Temp (oC)
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– 45oC, 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 LOADINGSynthesis UTP Parameter
Precursor (Fe)
Excess Solvent
Acetate Nitrate
Wt % Cat.
1 3 5
1/9mL 1/3mL
%H2 loadingRed. Temp (oC)
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
BetterDispersion
Temperature Programme for CNF/CNT Growth using UTP
30 30
700700
200
250
0
100
200
300
400
500
600
700
0 100 200 300 400 500 600
Time (min)
Tem
p (
oC
)
Calcination
Reduction
Growth
Cooling
30 min
44 min
60 min
10 min
60 min
100 min
60 min
120 min
134 min
SEM (3 wt%), different H2 loading
5 %
10 %
20 % In Progress
Yield increased
BetterDispersion
Temperature Programme for CNF/CNT Growth using UTP
30 30
700700
200
250
0
100
200
300
400
500
600
700
0 100 200 300 400 500 600
Time (min)
Tem
p (
oC
)
Calcination
Reduction
Growth
Cooling
30 min
44 min
60 min
10 min
60 min
100 min
60 min
120 min
134 min
SEM (5 wt%), different H2 loading
5 %
10 %
20 % In Progress
Yield increased
BetterDispersion
Temperature Programme for CNF/CNT Growth using UTP
30 30
700700
200
250
0
100
200
300
400
500
600
700
0 100 200 300 400 500 600
Time (min)
Tem
p (
oC
)
Calcination
Reduction
Growth
Cooling
30 min
44 min
60 min
10 min
60 min
100 min
60 min
120 min
134 min
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 loadingRed. Temp (oC)
5% 10% 20%300 500 700
Red. Time (min)
60 90 120
Drying Technique
Convectional Oven Drynoza