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NC200 Work Progress – Improving Drying Technique

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).

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NC200 Work Progress – Improving Drying Technique

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  1. NC200 Work Progress – Improving Drying Technique Carbon Team ImranSyakirMohamad, Norli Abdullah

  2. Objective • Improve yield & quality of CNF/CNT produced • Better dispersion of CNF/CNT • High CNF/CNT yield • CNF CNT

  3. Synthesis UTP Parameter Precursor (Fe) Wt % Cat. Red. Temp (oC) %H2 loading 500 700 Acetate Nitrate 1 3 5 300 5% 10% 20% Red. Time (min) Excess Solvent 90 120 60 1/3mL 1/9mL • To improve yield & quality of CNF/CNT • To Improve drying process • for better catalyst dispersion • onto substrate • To optimize the optimum temp • for Fe reduction • To reduce drying time • To improve yield & quality • of CNF/CNT Drying Technique Convectional Oven Drynoza NC200 Work Flow Diagram

  4. Synthesis UTP Parameter Precursor (Fe) Wt % Cat. Red. Temp (oC) %H2 loading 500 700 Acetate Nitrate 1 3 5 300 5% 10% 20% Red. Time (min) Excess Solvent 90 120 60 1/3mL 1/9mL Drying Technique Convectional Oven Drynoza Drying Technique

  5. Problem Bad catalyst dispersion Objective To Improve drying process for better catalyst dispersion onto substrate

  6. Previous Tech Oven 45oC, Horizontal ventilation New Tech Drynoza RT, vertical ventilation

  7. Result • Catalyst Dispersion Improved No sign of track of dried Fe salt deposited on the bottles.

  8. Synthesis UTP Parameter Precursor (Fe) Wt % Cat. Red. Temp (oC) %H2 loading 500 700 Acetate Nitrate 1 3 5 300 5% 10% 20% Red. Time (min) Excess Solvent 90 120 60 1/3mL 1/9mL Drying Technique Convectional Oven Drynoza WEIGHT % CAT. LOADING&% H2 LOADING

  9. SEM (Diff. wt%, 5% H2) 1 wt % 3 wt % D increased 5 wt %

  10. 60 min 120 min 134 min 100 min 60 min 10 min 60 min 44 min Calcination Reduction Growth Cooling 30 min SEM (1 wt%, different H2 loading) 5 % Yield increased Better Dispersion 10 % 20 % In Progress

  11. 60 min 120 min 134 min 100 min 60 min 10 min 60 min 44 min Calcination Reduction Growth Cooling 30 min SEM (3 wt%), different H2 loading 5 % Yield increased Better Dispersion 10 % 20 % In Progress

  12. 60 min 120 min 134 min 100 min 60 min 10 min 60 min 44 min Calcination Reduction Growth Cooling 30 min SEM (5 wt%), different H2 loading 5 % Yield increased Better Dispersion CNF+CNT produced 10 % 20 % In Progress

  13. SEM 10% H2 loading 1wt % CNF produced 3wt % D increased Mixture CNF+CNT produced 5wt %

  14. NC2FA9 (5wt%, 10%H2)

  15. NC2FA9 (5wt%, 10%H2)

  16. NC2FA9 (5wt%, 10%H2)

  17. 96nm NC2FA9 (5wt%, 10%H2)

  18. 65nm 30nm NC2FA9 (5wt%, 10%H2)

  19. Synthesis UTP Parameter Precursor (Fe) Wt % Cat. Red. Temp (oC) %H2 loading 500 700 Acetate Nitrate 1 3 5 300 5% 10% 20% Red. Time (min) Excess Solvent 90 120 60 1/3mL 1/9mL Drying Technique Convectional Oven Drynoza Future Plan • Increase % H2 loading to 20% in the reduction process • Increase reduction time to 90 min and 120 min

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