Research output: Contribution to journal › Article › peer-review
Immobilization of Polyoxometalates on Carbon Nanotubes: Tuning Catalyst Activity, Selectivity and Stability in H2O2-Based Oxidations. / Evtushok, Vasilii Yu; Lopatkin, Vladimir A.; Podyacheva, Olga Yu et al.
In: Catalysts, Vol. 12, No. 5, 472, 05.2022.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Immobilization of Polyoxometalates on Carbon Nanotubes: Tuning Catalyst Activity, Selectivity and Stability in H2O2-Based Oxidations
AU - Evtushok, Vasilii Yu
AU - Lopatkin, Vladimir A.
AU - Podyacheva, Olga Yu
AU - Kholdeeva, Oxana A.
N1 - Funding: This research was funded by the Ministry of Science and Higher Education of the Russian Federation within the governmental order for the Boreskov Institute of Catalysis (project AAAA-A21-121011390008-4). Publisher Copyright: © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2022/5
Y1 - 2022/5
N2 - In recent years, carbon nanotubes (CNTs), including N-doped ones (N-CNTs), have received significant attention as supports for the construction of heterogeneous catalysts. In this work, we summarize our progress in the application of (N)-CNTs for immobilization of anionic metal-oxygen clusters or polyoxometalates (POMs) and use of (N)-CNTs-supported POM as catalysts for liquidphase selective oxidation of organic compounds with the green oxidant–aqueous hydrogen peroxide. We discuss here the main factors, which favor adsorption of POMs on (N)-CNTs and ensure a quasi-molecular dispersion of POM on the surface and their strong attachment to the support. The effects of the POM nature, N-doping of CNTs, acid additives, and other factors on the POM immobilization process and catalytic activity/selectivity of the (N)-CNTs-immobilized POMs are analyzed. Particular attention is drawn to the critical issue of the catalyst stability and reusability. The scope and limitations of the POM/(N)-CNTs catalysts in H2O2-based selective oxidations are discussed.
AB - In recent years, carbon nanotubes (CNTs), including N-doped ones (N-CNTs), have received significant attention as supports for the construction of heterogeneous catalysts. In this work, we summarize our progress in the application of (N)-CNTs for immobilization of anionic metal-oxygen clusters or polyoxometalates (POMs) and use of (N)-CNTs-supported POM as catalysts for liquidphase selective oxidation of organic compounds with the green oxidant–aqueous hydrogen peroxide. We discuss here the main factors, which favor adsorption of POMs on (N)-CNTs and ensure a quasi-molecular dispersion of POM on the surface and their strong attachment to the support. The effects of the POM nature, N-doping of CNTs, acid additives, and other factors on the POM immobilization process and catalytic activity/selectivity of the (N)-CNTs-immobilized POMs are analyzed. Particular attention is drawn to the critical issue of the catalyst stability and reusability. The scope and limitations of the POM/(N)-CNTs catalysts in H2O2-based selective oxidations are discussed.
KW - Carbon nanotubes
KW - Heterogeneous catalysis
KW - Hydrogen peroxide
KW - Liquid-phase selective oxidation
KW - N-doping
KW - Polyoxometalates
KW - Supported catalysts
UR - http://www.scopus.com/inward/record.url?scp=85130439353&partnerID=8YFLogxK
U2 - 10.3390/catal12050472
DO - 10.3390/catal12050472
M3 - Article
AN - SCOPUS:85130439353
VL - 12
JO - Catalysts
JF - Catalysts
SN - 2073-4344
IS - 5
M1 - 472
ER -
ID: 36169419