Rhodium-Based Catalysts: An Impact of the Support Nature on the Catalytic Cyclohexane Ring Opening

Rhodium-Based Catalysts: An Impact of the Support Nature on the Catalytic Cyclohexane Ring Opening Full article

Journal

Nanomaterials
ISSN: 2079-4991

Output data

Year: 2023, Volume: 13, Number: 5, Article number : 936, Pages count : DOI: 10.3390/nano13050936

Authors

Kartavova Kristina E. ^1,2 , Mashkin Mikhail Yu. ^1,2,3 , Kostin Mikhail Yu. ¹ , Finashina Elena D. ³ , Kalmykov Konstantin B. ¹ , Kapustin Gennady I. ³ , Pribytkov Petr V. ^1,3 , Tkachenko Olga P. ³ , Mishin Igor V. ³ , Kustov Leonid M. ^1,2,3 , Kustov Alexander L. ^1,2,3

Affiliations

1	Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia
2	Institute of Ecotechnologies, National University of Science and Technology “MISiS”, 119049 Moscow, Russia
3	N.D. Zelinsky Institute of Organic Chemistry RAS, 119991 Moscow, Russia

Because of the growing demand for high-quality fuels, the light cycle oil fraction improvement including cetane number improvement is important. The main way to reach this improvement is the ring opening of cyclic hydrocarbons, and a highly effective catalyst should be found. Cyclohexane ring openings are a possible option to investigate the catalyst activity. In this work, we investigated rhodium-loaded catalysts prepared using the commercially available industrial supports: single-component ones, SiO2 and Al2O3; and mixed oxides CaO + MgO + Al2O3 and Na2O + SiO2 + Al2O3. The catalysts were prepared by incipient wetness impregnation and investigated by N2 low-temperature adsorption-desorption, XRD, XPS, DRS UV-Vis and DRIFT spectroscopy, SEM, and TEM with EDX. The catalytic tests were performed in cyclohexane ring opening in the range of 275–325 °C. The best result was demonstrated by the sample 1Rh/CaMgAlO: the selectivity to n-hexane was about 75% while the cyclohexane conversion was about 25% at 275 °C. The space-time yield was up to 12 mmoln-hexane gcat−1h−1.

Kartavova K.E. , Mashkin M.Y. , Kostin M.Y. , Finashina E.D. , Kalmykov K.B. , Kapustin G.I. , Pribytkov P.V. , Tkachenko O.P. , Mishin I.V. , Kustov L.M. , Kustov A.L.
Rhodium-Based Catalysts: An Impact of the Support Nature on the Catalytic Cyclohexane Ring Opening
Nanomaterials. 2023. V.13. N5. 936 . DOI: 10.3390/nano13050936 WOS Scopus OpenAlex

Web of science:	WOS:000947681200001
Scopus:	2-s2.0-85149663809
OpenAlex:	W4323312136

DB	Citing
OpenAlex	6
Scopus	5
Web of science	5