Cyclohexene Oxidation with H2O2 over Metal-Organic Framework MIL-125(Ti): The Effect of Protons on Reactivity Full article
| Journal |
Catalysts
ISSN: 2073-4344 |
||||||||
|---|---|---|---|---|---|---|---|---|---|
| Output data | Year: 2019, Volume: 9, Number: 4, Article number : 324, Pages count : 14 DOI: 10.3390/catal9040324 | ||||||||
| Tags | alkene; epoxidation; heterogeneous catalysis; hydrogen peroxide; metal-organic framework; MIL-125; titanium | ||||||||
| Authors |
|
||||||||
| Affiliations |
|
Funding (3)
| 1 | Federal Agency for Scientific Organizations | 0303-2016-0005 |
| 2 | Russian Foundation for Basic Research | 18-29-04022 |
| 3 | Korea Research Institute of Chemical Technology | SK-1301 |
Abstract:
The catalytic performance of the titanium-based metal–organic framework MIL-125 was evaluated in the selective oxidation of cyclohexene (CyH) with environmentally friendly oxidants, H2O2 and tBuOOH. The catalytic activity of MIL-125 as well as the oxidant utilization efficiency and selectivity toward epoxide and epoxide-derived products can be greatly improved by acid additives (HClO4 or CF3SO3H). In the presence of 1 molar equivalent (relative to Ti) of a proton source, the total selectivity toward CyH epoxide and trans-cyclohexane-1,2-diol reached 75–80% at 38–43% alkene conversion after 45 min of reaction with 1 equivalent of 30% H2O2 at 50 °C. With 50% H2O2 as the oxidant, the total selectivity toward heterolytic oxidation products increased up to 92% at the same level of alkene conversion. N2 adsorption, powder X-ray diffraction (PXRD), and infrared (IR) spectroscopy studies before and after the catalytic oxidations confirmed the absence of structural changes in the Metal–organic framework (MOF) structure. MIL-125 was stable toward titanium leaching, behaved as a truly heterogeneous catalyst, and could easily be recovered and reused several times without any loss of the catalytic properties.
Cite:
Maksimchuk N.
, Lee J.S.
, Ayupov A.
, Chang J-S.
, Kholdeeva O.
Cyclohexene Oxidation with H2O2 over Metal-Organic Framework MIL-125(Ti): The Effect of Protons on Reactivity
Catalysts. 2019.
V.9. N4. 324
:1-14. DOI: 10.3390/catal9040324
WOS
Scopus
РИНЦ
AN
OpenAlex
Cyclohexene Oxidation with H2O2 over Metal-Organic Framework MIL-125(Ti): The Effect of Protons on Reactivity
Catalysts. 2019.
V.9. N4. 324
:1-14. DOI: 10.3390/catal9040324
WOS
Scopus
РИНЦ
AN
OpenAlex
Files:
Full text from publisher
Dates:
| Submitted: | Feb 22, 2019 |
| Accepted: | Mar 22, 2019 |
| Published print: | Apr 1, 2019 |
| Published online: | Apr 2, 2019 |
Identifiers:
| Web of science: | WOS:000467315600023 |
| Scopus: | 2-s2.0-85065395857 |
| Elibrary: | 38690761 |
| Chemical Abstracts: | 2019:934973 |
| OpenAlex: | W2934424743 |