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Overview of Carbon Group Research Program

This report presents an in-depth overview of the Activated Carbon Research Program, focusing on the NC100 and NC200 projects aimed at producing cost-effective activated carbon with high mesopore distribution. Key achievements include successful production of activated carbon with a surface area of 475 m²/g and a total pore volume of 0.2 cc/g. The program addresses challenges such as the presence of inorganic compounds and explores methods for enhancing mesoporous structure. Future work aims to optimize synthesis processes and compare various production methods.

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Overview of Carbon Group Research Program

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  1. Nano C Overview of Carbon GroupResearch Program

  2. NC100 - Local AC -Rostam [Science Officer] -Zairy [Science Officer] Characterization Acid Base Titration -Rostam [science Officer] -Salamiah [Science Officer] CARBON GROUP Iodine / CCL4 -Azman [Science Officer] NC200 Commercial AC KD Tech -Norly [PhD student] -Imran [PhD student] – Ali [PhD student]

  3. NC100 Objective • Low production cost of Activated carbon. • To get high mesopore distribution. Achievement • Succeed in producing activated carbon with low production cost. • Succeed in producing of homogenous mesopores distribution but still shallow of pore features ( measured via pore volume) surface area 475m2/g, meso 0.04cc/g, total pore 0.2 cc/g. Solution vs weakness • An existance of Si and Fe and others inorganic compound will be removed by using Nitrate acid as an alternative . • Nitrate acid is helping breaking the micropores to mesopores features.

  4. Flow Chart of NC100 Preparation Process ( For KD Replacement ) Palm kernel Soak with 17MNaOH / 12hrs/ dry 120oC 12hrs Carbonized with N2 from room temp to 900oC Dry & wash dried Deionized water by using Ultrasonic for 6 hours at 60oC carbonization Activation Dry by using conventional oven at 60oc Overnight Carbonized with N2 from room temp. to 900C Gas CO2 At 900C for 4 hours

  5. NC100 – Preminalary Results 870 nm 716 nm 708 nm 816 nm 737 nm

  6. NC200 – current work I. Support modification Objective : Oxidative treatment of activated carbon to obtain mesoporous carbon II. Synthesis of CNT/CNF on AC supported Fe catalyst Objective : to get high dispersion and homogeneous of nanocarbon on AC

  7. Support Modification – Meso program Raw AC-KD Heat 10K/min, hold 3hrs, synthetic air flow rate 25ml/min in UTP 475oC 500oC 525oC 550oC 575oC Physisorption measurement

  8. Support Modification – Meso program BJH isotherm mesopore

  9. Support Modification – Meso program Raw AC-KD Pre-treatment [heat 200oC, 2hrs, wash 5M HNO3 / 24hrs/ RT] 5K/min, static air flow in small furnace 400oC 450oC 480oC 500oC Holds time : 1hrs, 3hrs, 5 hrs, 7hrs Physisorption measurement

  10. Micropore Mesopore BJH isotherm

  11. Future Plan • Compare the highest mesopore volume method with UTP+synthetic air method • Rotating UTP – the burning process more homogen • The best method use to create a mesopore based substrate for impregnation process

  12. Schematic diagram for mesoporous program Raw AC-KD A009 Heat 10K/min, hold 3hrs, 5%O2 in N2 flow rate 100mil/min Impregnate with Fe 450oC 475oC 500oC 525oC Heat 10K/min, 5%O2 in N2 flow rate 100mil/min, ToC BET=Meso 2A BET = Meso2 Wash with 5M HNO3, RT, 24hrs Further Calcine 120C, 5%O2 in N2, 1K/min 3K/min 5K/min BET=Meso 1A Heat 10K/min, hold 3hrs, 5%O2 in N2 flow rate 100mil/min, Heat 10K/min, hold 3hrs, 5%O2 in N2 flow rate 100ml/min, ToC is based on Meso2 ToC is based on Meso1B [xxxOc] BET=Meso 1B BET = Meso 1C D080-1 D080-2 D080-3

  13. Synthesis CNF/CNT on AC/Fe Big Raw AC Wash 5M HNO3 24hrs Grain / seive <50µm Ultrasonification / 30min 1wt% Fe-nitrate/Fe-acetate Wet impregnation • Calcination • 250oC • Hold 1hrs • 5%O2 in N2 • Reduction • 300oC • Hold 1hrs • 5%H2 in N2 • Growth • 700oC • Hold 2hrs • 200ml H2 / 30ml C2H4

  14. SEM images – iron nitratecal250, red300, growth700

  15. SEM images – iron acetate,cal250, red300, growth700

  16. Acknowledgement Combicat & NanoC team FHI team

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