TPR-MS Insitu analysis for optimum CNT of Fe & Ni/Carbon system Ali Rinaldi, Norly Abd, Imran...
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Transcript of TPR-MS Insitu analysis for optimum CNT of Fe & Ni/Carbon system Ali Rinaldi, Norly Abd, Imran...
TPR-MS Insitu analysis for optimum CNT of Fe &
Ni/Carbon system
TPR-MS Insitu analysis for optimum CNT of Fe &
Ni/Carbon system
Ali Rinaldi, Norly Abd, Imran Syakir
Ali Rinaldi, Norly Abd, Imran Syakir
Introduction & BackgroundIntroduction & Background• The complication of metal-carbon support
interaction further complicates the study of growing CNTs on Activated carbon.
• The complication involves gasification and carbon contamination that changes the catalyst activity towards CNTs growth.
• In addition to the already-complicated CNTs growth mechanistic study, a better experimental and reactor design is required to acquire some knowledge on the system.
•
• The complication of metal-carbon support interaction further complicates the study of growing CNTs on Activated carbon.
• The complication involves gasification and carbon contamination that changes the catalyst activity towards CNTs growth.
• In addition to the already-complicated CNTs growth mechanistic study, a better experimental and reactor design is required to acquire some knowledge on the system.
•
objectivesobjectives• Simplicity in preparing and loading the
samples.• Quasi- insitu method in analyzing the
effect of temperature, gas composition, time to quality of CNTs
• The TPR set up allows air-tight system• The MS detector permits high precision
gas reactants and products analysis.• Compatibility with carbon groups
experiment with HPDSC in Berlin.
• Simplicity in preparing and loading the samples.
• Quasi- insitu method in analyzing the effect of temperature, gas composition, time to quality of CNTs
• The TPR set up allows air-tight system• The MS detector permits high precision
gas reactants and products analysis.• Compatibility with carbon groups
experiment with HPDSC in Berlin.
Reactor setupReactor setup
H2
C2H4
N2/Ar
Pre-treatment oven
MS/Vent
Pulse set up
Calc/red gases
AdvantagesAdvantages• Practical sample preparation• Require only small amount of
sample• Free from gas diffusion problem• Allow continuous monitoring of
feedstock gasses and products with MS and/or TCD detectors.
• Gas is heated before contacting the sample
• Allow weight measurement after reaction.
• Practical sample preparation• Require only small amount of
sample• Free from gas diffusion problem• Allow continuous monitoring of
feedstock gasses and products with MS and/or TCD detectors.
• Gas is heated before contacting the sample
• Allow weight measurement after reaction.
Gas inGas out
AimsAims• To correlate Surface functional
groups (SOFG) decomposition of Act carbon with activity of the catalyst for CNTs synthesis.
• With a SOFG-free support (eg graphite) study the effect of pulsed CO/CO2 towards the activity of catalyst for CNTs synthesis.
• To correlate Surface functional groups (SOFG) decomposition of Act carbon with activity of the catalyst for CNTs synthesis.
• With a SOFG-free support (eg graphite) study the effect of pulsed CO/CO2 towards the activity of catalyst for CNTs synthesis.
AimsAims• Fast study of calcination and/or
reduction conditions effect towards the catalyst activity for CNTs synthesis.
• Understand the effect of metal catalyst oxidation state to the CNTs synthesis (for multivalent metals; Fen+)
• Measure the adsorption energy of H2, C2H4 for catalyst calcine and reduced at different conditions.
• Fast study of calcination and/or reduction conditions effect towards the catalyst activity for CNTs synthesis.
• Understand the effect of metal catalyst oxidation state to the CNTs synthesis (for multivalent metals; Fen+)
• Measure the adsorption energy of H2, C2H4 for catalyst calcine and reduced at different conditions.
ConclusionConclusion
Work plan?Work plan?
• In progress• In progress