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La(FeCuMnMgTi)O3 High-Entropy Oxide Nanoparticles as Highly Efficient Catalysts for Solvent-Free Aerobic Oxidation of Benzyl Alcohol.
Ostovari Moghaddam, Ahmad; Mehrabi-Kalajahi, Seyedsaeed; Qi, Xueqiang; Salari, Rana; Fereidonnejad, Rahele; Abdollahzadeh, Amin; Uchaev, Daniil A; Kazakova, Elena A; Varfolomeev, Mikhail A; Cabot, Andreu; Vasenko, Andrey S; Trofimov, Evgeny A.
Affiliation
  • Ostovari Moghaddam A; Department of Materials Science, Physical and Chemical Properties of Materials, South Ural State University, 76 Lenin Ave, Chelyabinsk 454080, Russia.
  • Mehrabi-Kalajahi S; Department of Materials Science, Physical and Chemical Properties of Materials, South Ural State University, 76 Lenin Ave, Chelyabinsk 454080, Russia.
  • Qi X; Department of Petroleum Engineering, Kazan Federal University, Kazan 420008, Russia.
  • Salari R; College of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China.
  • Fereidonnejad R; Department of Analytical Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz 5166616471, Iran.
  • Abdollahzadeh A; Department of Materials Science, Physical and Chemical Properties of Materials, South Ural State University, 76 Lenin Ave, Chelyabinsk 454080, Russia.
  • Uchaev DA; School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Tehran 16846-13114, Iran.
  • Kazakova EA; Department of Materials Science, Physical and Chemical Properties of Materials, South Ural State University, 76 Lenin Ave, Chelyabinsk 454080, Russia.
  • Varfolomeev MA; Department of Biochemistry, Sechenov First Moscow State Medical University, 119991 Moscow, Russia.
  • Cabot A; Department of Petroleum Engineering, Kazan Federal University, Kazan 420008, Russia.
  • Vasenko AS; Catalonia Institute for Energy Research - IREC, 08930 Sant Adrià de Besòs, Spain.
  • Trofimov EA; ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain.
J Phys Chem Lett ; 15(30): 7577-7583, 2024 Aug 01.
Article in En | MEDLINE | ID: mdl-39024539
ABSTRACT
In this work, a solid-state method for the synthesis of perovskite La(FeCuMnMgTi)O3 high-entropy oxide (HEO) nanoparticles is detailed. Additionally, the high performance of these nanoparticles as catalysts in the aerobic and solvent-free oxidation of benzyl alcohol is demonstrated. The structural features of HEO nanoparticles are studied by X-ray diffraction and high-resolution transmission electron microscopy. The La(FeCuMnMgTi)O3 nanoparticles demonstrate excellent benzyl alcohol conversion rates and selectivity for benzaldehyde, reaching 10.6% conversion and 52.8% selectivity after reaction for only 4 h and ≤75.6% conversion after 24 h. In addition, the as-prepared HEO catalyst displays robust stability in benzyl alcohol oxidation. Density functional theory calculations demonstrate that the adsorption energy of benzaldehyde on the HEO surface is lower than that of the benzoic acid. This, in turn, hinders the gradual conversion of benzaldehyde to benzoic acid on the surface of HEO and retains benzaldehyde as the main product.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: J Phys Chem Lett Year: 2024 Document type: Article Affiliation country: Country of publication:
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: J Phys Chem Lett Year: 2024 Document type: Article Affiliation country: Country of publication: