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91.
I. S. Mashkovsky P. V. Markov G. O. Bragina G. N. Baeva A. V. Bukhtiyarov I. P. Prosvirin V. I. Bukhtiyarov A. Yu. Stakheev 《Kinetics and Catalysis》2017,58(4):471-479
The structure of the Pd–Zn/α-Al2O3 catalyst, which was prepared by a joint impregnation method, was studied. According to XRD analysis data, supported intermetallic Pd–Zn particles were formed in a temperature range of 200–600°C. At 600°C, the crystal lattice of substitutional solid solution based on Pd (FCC) was finally rearranged into the tetragonal lattice of Pd–Zn. A shift of the Pd3d 5/2 line in the XPS spectrum indicated the formation of the Pd–Zn intermetallic compound. 相似文献
92.
V. Z. Radkevich S. G. Khaminets O. A. Samoilenko I. G. Paplevko I. P. Prosvirin A. A. Dubkov L. N. Grishchenko 《Russian Journal of Applied Chemistry》2017,90(2):225-235
The influence exerted by the conditions of oxidation and calcination in an inert medium on the properties of Karbopon and Busofit activated carbon fibers were studied using a set of physicochemical methods. The maximal concentration of thermally stable phenol groups in Busofit is reached by its oxidation with a 20% aqueous HNO3 solution, followed by calcination in an inert medium at 500°С for 1.5 h. Experiments with catalysts supported on Busofit samples functionalized with 20% HNO3 have shown that palladium supported on Busofit that was calcined at 500°C after oxidative treatment is characterized by monodisperse nanocluster distribution. The prepared catalysts containing 1 wt % Pd exhibit higher activity in oxidation of carbon monoxide than their presently known analogs do. 相似文献
93.
94.
Markov P. V. Bukhtiyarov A. V. Mashkovsky I. S. Smirnova N. S. Prosvirin I. P. Vinokurov Z. S. Panafidin M. A. Baeva G. N. Zubavichus Ya. V. Bukhtiyarov V. I. Stakheev A. Yu. 《Kinetics and Catalysis》2019,60(6):842-850
Kinetics and Catalysis - The structure and catalytic characteristics of a bimetallic catalyst containing Pd1In1 nanoparticles deposited on the surface of γ-Al2O3 were studied. The formation of... 相似文献
95.
Perevalov T. V. Iskhakzai R. M. Kh. Aliev V. Sh. Gritsenko V. A. Prosvirin I. P. 《Journal of Experimental and Theoretical Physics》2020,131(6):940-944
Journal of Experimental and Theoretical Physics - The silicon oxide thin films obtained by thermal SiO2 treatment in hydrogen electron cyclotron resonance plasma at various exposure times are... 相似文献
96.
Evgueni Barmatov Andrey Prosvirin Marina Barmatova Yuri Galyametdinov Wolfgang Haase Valery Shibaev 《Macromolecular rapid communications》2000,21(6):281-286
The new series of the LC ionomers containing copper ions has been obtained and their phase behavior has been studied. It was shown that at low metal ion concentrations in the LC ionomers (˜2 mol‐%) the induction of the SmA phase is observed. An increase in the copper ion concentration is accompanied by a slight rise in clearing and glass transition temperatures. The magnetic properties of LC ionomers were studied at the first time. It was shown that LC ionomers are antiferromagneties with a strong exchange interaction J = 174–178 cm–1. Temperature dependencies of the magnetic moment and the magnetic anisotropy are adequately described in the framework of the 1‐D‐Heisenberg linear‐chain model. 相似文献
97.
Production of Pure Aqueous 13C‐Hyperpolarized Acetate by Heterogeneous Parahydrogen‐Induced Polarization 下载免费PDF全文
Dr. Kirill V. Kovtunov Dr. Danila A. Barskiy Dr. Roman V. Shchepin Oleg G. Salnikov Dr. Igor P. Prosvirin Dr. Andrey V. Bukhtiyarov Dr. Larisa M. Kovtunova Prof. Valerii I. Bukhtiyarov Prof. Igor V. Koptyug Prof. Eduard Y. Chekmenev 《Chemistry (Weinheim an der Bergstrasse, Germany)》2016,22(46):16446-16449
A supported metal catalyst was designed, characterized, and tested for aqueous phase heterogeneous hydrogenation of vinyl acetate with parahydrogen to produce 13C‐hyperpolarized ethyl acetate for potential biomedical applications. The Rh/TiO2 catalyst with a metal loading of 23.2 wt % produced strongly hyperpolarized 13C‐enriched ethyl acetate‐1‐13C detected at 9.4 T. An approximately 14‐fold 13C signal enhancement was detected using circa 50 % parahydrogen gas without taking into account relaxation losses before and after polarization transfer by magnetic field cycling from nascent parahydrogen‐derived protons to 13C nuclei. This first observation of 13C PHIP‐hyperpolarized products over a supported metal catalyst in an aqueous medium opens up new possibilities for production of catalyst‐free aqueous solutions of nontoxic hyperpolarized contrast agents for a wide range of biomolecules amenable to the parahydrogen induced polarization by side arm hydrogenation (PHIP‐SAH) approach. 相似文献
98.
Kon’kova T. V. Prosvirin I. P. Alekhina M. B. Skornikova S. A. 《Kinetics and Catalysis》2015,56(2):206-211
Kinetics and Catalysis - Alumina-based cobalt-containing catalysts have been synthesized for the oxidation of organic dyes with hydrogen peroxide in the aqueous phase. According to X-ray... 相似文献
99.
Kinetics and Catalysis - The LaMn1 – xFexO3 (х = 0–1) perovskites were prepared by the Pechini route and characterized by X-ray diffraction analysis, HR TEM, XPS, and BET. Their... 相似文献
100.
O. E. Tereshchenko K. A. Kokh V. V. Atuchin K. N. Romanyuk S. V. Makarenko V. A. Golyashov A. S. Kozhukhov I. P. Prosvirin A. A. Shklyaev 《JETP Letters》2011,94(6):465-468
The inertness of the cleaved (0001) surface of a Bi2Se3 single crystal to oxidation has been demonstrated using X-ray photoelectron spectroscopy, as well as atomic-force and scanning
tunneling microscopy and spectroscopy. No intrinsic bismuth and selenium oxides are formed on the surface after a month of
storage in air. Atomically flat surfaces with macroscopic sizes (∼1 cm2) and rms roughness less than 0.1 nm have been prepared, and (1 × 1)-(0001) Bi2Se3 atomic structure has been resolved. The tunneling conductance measurements have shown that the energy dependence of the surface
density of states is quasilinear in the band gap of Bi2Se3. 相似文献