Author
B.N. Shelimov
Bio: B.N. Shelimov is an academic researcher from Russian Academy of Sciences. The author has contributed to research in topics: Catalysis & Metathesis. The author has an hindex of 19, co-authored 44 publications receiving 953 citations.
Topics: Catalysis, Metathesis, Propene, Cyclopropane, Adsorption
Papers
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TL;DR: In this article, the reactivities of hole centers of the O− type generated by γ irradiation of V5+ and P5+ cations deposited on silica gel, and by uv irradiations of V 5+ SiO 2 and stoichiometric TiO2 were studied.
110 citations
TL;DR: In this paper, it was shown that thermal reduction at 473 K and photo assisted reduction at 77 K of NiCaY zeolites in hydrogen resulted in formation of Ni+ ions, detected by EPR, and in appearance of catalytic activity for the ethylene dimerization reaction at room temperature.
86 citations
TL;DR: In this article, cyclopropane (CP) chemisorption on silica-molybdena catalysts photoreduced in CO was found to result in a sharp increase (by more than one order of magnitude at 293 K) of specific activities for propene metathesis.
63 citations
TL;DR: In this article, the kinetics and mechanism of NO and oxygen coadsorption on TiO2 at room temperature, which is the key step of the catalytic removal of NOx pollutants from air, were studied.
Abstract: In the present paper, kinetics and mechanism of NO and oxygen coadsorption on TiO2 at room temperature, which is the key step of the catalytic removal of NOx pollutants from air, were studied. NO adsorption on TiO2 in the absence of oxygen is weak and reversible, but it is found to strongly increase in the presence of oxygen. The ratio between the amount of adsorbed NO and O2 in the course of adsorption is constant and close to three. A FTIR spectroscopic study reveals that the amount and composition of N-containing species on the TiO2 surface strongly depend on the contact time with the initial NO–O2 mixture and on its composition. At relatively small exposures, IR bands assigned to NO– and nitrosyl complexes Tin+–NO (n = 3–4) are predominant in the spectra. With increasing contact time, NO– disappears, and IR bands of NO3– and possibly NO2– appear and grow. The thermal stability of surface nitrates and nitrites correlates with their structure. IR spectra observed upon NO2 adsorption are similar to those...
60 citations
TL;DR: Tanahashi, and Y. Kubokawa as mentioned in this paper showed that photoassisted reduction of Mo6+SiO2 upon UV irradiation is an effective way to produce active catalysts, and that the possible reasons for higher catalytic activity of photoreduced samples are discussed.
58 citations
Cited by
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TL;DR: There is, I think, something ethereal about i —the square root of minus one, which seems an odd beast at that time—an intruder hovering on the edge of reality.
Abstract: There is, I think, something ethereal about i —the square root of minus one. I remember first hearing about it at school. It seemed an odd beast at that time—an intruder hovering on the edge of reality.
Usually familiarity dulls this sense of the bizarre, but in the case of i it was the reverse: over the years the sense of its surreal nature intensified. It seemed that it was impossible to write mathematics that described the real world in …
33,785 citations
TL;DR: Dehydroisomerization of Limonene and Terpenes To Produce Cymene 2481 4.2.1.
Abstract: 3.2.3. Hydroformylation 2467 3.2.4. Dimerization 2468 3.2.5. Oxidative Cleavage and Ozonolysis 2469 3.2.6. Metathesis 2470 4. Terpenes 2472 4.1. Pinene 2472 4.1.1. Isomerization: R-Pinene 2472 4.1.2. Epoxidation of R-Pinene 2475 4.1.3. Isomerization of R-Pinene Oxide 2477 4.1.4. Hydration of R-Pinene: R-Terpineol 2478 4.1.5. Dehydroisomerization 2479 4.2. Limonene 2480 4.2.1. Isomerization 2480 4.2.2. Epoxidation: Limonene Oxide 2480 4.2.3. Isomerization of Limonene Oxide 2481 4.2.4. Dehydroisomerization of Limonene and Terpenes To Produce Cymene 2481
5,127 citations
TL;DR: The field of surface science provides a unique approach to understand bulk, surface and interfacial phenomena occurring during TiO2 photocatalysis as mentioned in this paper, including photon absorption, charge transport and trapping, electron transfer dynamics, adsorbed state, mechanisms, poisons and promoters, and phase and form.
1,768 citations
TL;DR: Recent progress in the field of organometallic cobalt-catalyzed C–H activation is reviewed until November 2015.
Abstract: Catalytic C–H activation has emerged as a powerful tool for sustainable syntheses. In the recent years, notable success was achieved with the development of cobalt-catalyzed C–H functionalizations with either in situ generated or single-component cobalt-complexes under mild reaction conditions. Herein, recent progress in the field of organometallic cobalt-catalyzed C–H activation is reviewed until November 2015.
953 citations
TL;DR: A comprehensive survey of photo-CRP reactions can be found in this article, where a large number of methods are summarized and further classified into subcategories based on the specific reagents, catalysts, etc., involved.
Abstract: The use of light to mediate controlled radical polymerization has emerged as a powerful strategy for rational polymer synthesis and advanced materials fabrication. This review provides a comprehensive survey of photocontrolled, living radical polymerizations (photo-CRPs). From the perspective of mechanism, all known photo-CRPs are divided into either (1) intramolecular photochemical processes or (2) photoredox processes. Within these mechanistic regimes, a large number of methods are summarized and further classified into subcategories based on the specific reagents, catalysts, etc., involved. To provide a clear understanding of each subcategory, reaction mechanisms are discussed. In addition, applications of photo-CRP reported so far, which include surface fabrication, particle preparation, photoresponsive gel design, and continuous flow technology, are summarized. We hope this review will not only provide informative knowledge to researchers in this field but also stimulate new ideas and applications to further advance photocontrolled reactions.
738 citations