التفاصيل البيبلوغرافية
| العنوان: |
Cycloaddition of limonene epoxide and CO2 over Zn/SBA-15 catalysts for limonene carbonate synthesis |
| المؤلفون: |
Carina Mosquera, Aída Luz Villa |
| المصدر: |
Journal of CO2 Utilization, Vol 83, Iss , Pp 102817- (2024) |
| بيانات النشر: |
Elsevier, 2024. |
| سنة النشر: |
2024 |
| المجموعة: |
LCC:Technology |
| مصطلحات موضوعية: |
Cyclic carbonates, Carbon dioxide, Heterogeneous catalysts, Limonene epoxide, Limonene carbonate, Technology |
| الوصف: |
The cycloaddition reaction of CO2 with epoxides such as limonene epoxide (LE) to form cyclic carbonates is considered a promising alternative for reducing CO2 emissions. In this work, CO2 fixation on LE to produce cyclic carbonates was carried out over Zn/SBA-15 with tetrabutylammonium bromide (TBAB) as co-catalyst and over NH3X-Zn/SBA-15 (X= Cl, Br, or I) catalysts. The catalysts were characterized by FT-IR, XRD, N2 adsorption–desorption isotherms, TEM, NH3-TPD, XPS, TGA and Py-FTIR. The Zn/SBA-15 support mainly presents Lewis’s acid sites of medium acidity; the surface area was 512 m2/g and 378 m2/g and the pore size were 9 nm and 7.2 nm, for Zn/SBA-15 and NH3Cl-Zn/SBA-15, respectively. The functionalization of Zn/SBA-15 was verified by FTIR, UV-vis, and XPS analysis. It was found that when Zn/SBA-15 was used as catalyst that reaction time had a significative effect on LE conversion and in the case of limonene carbonate selectivity, co-catalyst concentration variation had the main effect. Zn/SBA-15 catalyst can be reused up to 5 times without significant changes neither in conversion nor in limonene carbonate selectivity. The best LE conversion and limonene carbonate selectivity was 33% and 93%, respectively (1 M LE, 200 mg Zn/SBA-15, 7% TBAB; 30 bar, 18 h, 700 rpm and 20 mL diethyl carbonate). The reported catalytic system is a promising system for obtaining limonene carbonate using a heterogeneous catalyst. |
| نوع الوثيقة: |
article |
| وصف الملف: |
electronic resource |
| اللغة: |
English |
| تدمد: |
2212-9839 |
| Relation: |
http://www.sciencedirect.com/science/article/pii/S2212982024001525; https://doaj.org/toc/2212-9839 |
| DOI: |
10.1016/j.jcou.2024.102817 |
| URL الوصول: |
https://doaj.org/article/7e6d1d973ea1447cabe505fbdfe52f47 |
| رقم الانضمام: |
edsdoj.7e6d1d973ea1447cabe505fbdfe52f47 |
| قاعدة البيانات: |
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