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Activated Carbon Modification towards Efficient Catalyst for High Value-Added Products Synthesis from Alpha-Pinene
Joanna Sreńscek-Nazzal1, Adrianna Kamińska1, Piotr Miądlicki1
1Department of Catalytic and Sorbent Materials Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Piastów Ave. 42, 71-065 Szczecin, Poland.
New activated carbons, modified with acids, show high activity in alpha-pinene isomerization. The DT0_HCl_HNO3 catalyst achieved 100% alpha-pinene conversion, producing camphene and limonene.
Area of Science:
- Catalysis
- Materials Science
- Organic Chemistry
Background:
- Alpha-pinene isomerization is a key reaction in terpene chemistry.
- Developing efficient catalysts is crucial for selective terpene transformations.
- Activated carbons offer tunable properties for catalytic applications.
Purpose of the Study:
- To synthesize and characterize novel activated carbons for alpha-pinene isomerization.
- To evaluate the catalytic performance of acid-modified activated carbons.
- To optimize reaction conditions for maximum alpha-pinene conversion.
Main Methods:
- Synthesis of activated carbons (DT0, DT0_HCl, DT0_HNO3, DT0_HCl_HNO3).
- Characterization using XRF, SEM, EDX, XPS, FT-IR, XRD, and N2 adsorption.
- Catalytic testing of alpha-pinene isomerization under varying temperature and time.
Main Results:
- DT0_HCl_HNO3-activated carbon exhibited superior activity in alpha-pinene isomerization.
- 100% conversion of alpha-pinene was achieved at 160 °C with 5 wt% catalyst over 3 hours.
- Camphene and limonene were identified as the primary products.
Conclusions:
- Acid-modified activated carbons are effective catalysts for alpha-pinene isomerization.
- The DT0_HCl_HNO3 catalyst demonstrates high efficiency and selectivity.
- Optimized conditions enable complete conversion, yielding valuable terpene products.
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