В. В. Кривенцов

ORCID: 0000-0001-6217-5971
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Catalytic Processes in Materials Science
  • Catalysis and Oxidation Reactions
  • Catalysis and Hydrodesulfurization Studies
  • Chalcogenide Semiconductor Thin Films
  • Catalysts for Methane Reforming
  • Electron and X-Ray Spectroscopy Techniques
  • X-ray Spectroscopy and Fluorescence Analysis
  • Anodic Oxide Films and Nanostructures
  • Chemical Synthesis and Characterization
  • X-ray Diffraction in Crystallography
  • Radioactive element chemistry and processing
  • Zeolite Catalysis and Synthesis
  • Advancements in Solid Oxide Fuel Cells
  • Quantum Dots Synthesis And Properties
  • Semiconductor materials and devices
  • Semiconductor materials and interfaces
  • Magnetic and transport properties of perovskites and related materials
  • Advanced Condensed Matter Physics
  • Nuclear materials and radiation effects
  • Iron oxide chemistry and applications
  • Machine Learning in Materials Science
  • Electrocatalysts for Energy Conversion
  • Silicon Nanostructures and Photoluminescence
  • Rare-earth and actinide compounds
  • Polyoxometalates: Synthesis and Applications

Siberian Branch of the Russian Academy of Sciences
2004-2025

Boreskov Institute of Catalysis
2016-2025

Russian Academy of Sciences
1999-2025

Budker Institute of Nuclear Physics
2010-2023

Institute of Solid State Chemistry and Mechanochemistry
2020

Novosibirsk State University
2000-2009

International Tomography Center
2009

Leibniz University Hannover
2009

Semenov Institute of Chemical Physics
2009

Max-Planck-Institut für Kohlenforschung
2006

Understanding methane activation pathways on Zn-modified high-silica zeolites (ZSM-5, BEA) is of particular importance because the possibility involvement in coaromatization with higher alkanes this type zeolites. Herein, two samples zeolite BEA containing exclusively either small zinc oxide clusters or isolated Zn2+ cations have been synthesized and thoroughly characterized by a range spectroscopic methods (1H MAS NMR, DRIFTS, XPS, EXAFS, HRTEM) to show that only one Zn-species, ZnO...

10.1021/acscatal.6b03036 article EN publisher-specific-oa ACS Catalysis 2017-01-24

This work is part of a continued research aimed at the understanding promoting role Se in enhancement electrocatalytic activity Ru oxygen reduction reaction. The objective this paper to systematically investigate transformation nanoparticles upon their modification with increasing amounts Se. Se-modified Ru/C samples Se:Ru ratio from 0 1 were prepared by reacting carbon-supported SeO2 followed reductive annealing and characterized using high-resolution transmission electron microscopy,...

10.1021/jp056715b article EN The Journal of Physical Chemistry B 2006-03-15

Au catalysts with the same particle sizes demonstrate following order of activity in formic acid decomposition: Au/Al<sub>2</sub>O<sub>3</sub> &gt; Au/ZrO<sub>2</sub> ∼ Au/CeO<sub>2</sub> Au/La<sub>2</sub>O<sub>3</sub> Au/MgO.

10.1039/c6cy00552g article EN cc-by Catalysis Science & Technology 2016-01-01

Cu‐modified zeolites provide methane conversion to methanol with high selectivity under mild conditions. The activity of different possible Cu‐sites for transformation is still discussion. Herein, ZSM‐5 zeolite has been loaded Cu2+ cations (1.4 wt% Cu) as characterized by UV–vis DRS, EPR, EXAFS, and 1H MAS NMR. It inferred that cations, attached the cation‐exchange Al–O––Si sites framework, can exist in form either isolated or paired sites. on these verified observation methoxy species...

10.1002/chem.202403167 article EN Chemistry - A European Journal 2025-01-08

This work contributes to luminescent molecular switches featuring several emission pathways, which can be activated by external stimuli. We designed Zn complexes with phenylbenzothiazole-based α-aminomethylphosphine oxide (L) and isolated them as crystalline phases, α-[ZnL2Cl2], [ZnL(EtOAc)Cl2], [ZnL2Cl2]·1.5CH2Cl2, [ZnL2Cl2]·1.5CHCl3. They feature an intramolecular hydrogen bond of medium strength, capable excited-state proton transfer (ESIPT), well able for intersystem crossing between...

10.1021/acs.inorgchem.5c00222 article EN Inorganic Chemistry 2025-04-02

With regard to possible involvement of zeolite Brønsted acid sites (BAS) in the activation methane molecules for transformation methanol, effect different Cu(II) species loaded on kinetic parameters reaction H/D hydrogen exchange alkane with BAS Cu-modified ZSM-5 zeolites has been investigated 1H MAS NMR situ at 533–563 K. It is found that acceleration by 1 order magnitude occurs containing Cu2+ cations (Z2Cu(II) sites) or [Cu3(μ-O)3]2+ oxo-clusters (Z2[Cu3(μ-O)3] compared pure H-form...

10.1021/acs.jpcc.0c10261 article EN The Journal of Physical Chemistry C 2021-01-18

Ni supported on N-doped carbon is rarely studied in traditional catalytic reactions. To fill this gap, we compared the structure of 1 and 6 wt% species porous N-free their efficiency hydrogen generation from gaseous formic acid. On support, formed nanoparticles with a mean size 3.2 nm. support contained single-atoms stabilized by four pyridinic N atoms (N4-site) sub-nanosized clusters. Density functional theory calculations confirmed clustering when N4-sites were fully occupied. Kinetic...

10.3390/nano13030545 article EN cc-by Nanomaterials 2023-01-29

The structure and state of the active component-copper species in zirconia-supported copper catalysts with yttria-stabilized zirconia as a support were investigated. Catalysts different contents (2−10 wt % Cu) prepared by an impregnation technique characterized X-ray diffraction (XRD) analysis, radial distribution function (RDF) electronic density method, absorption fine (XAFS) UV−visible diffuse reflectance spectroscopy (UV−vis DRS), photoelectron (XPS). It was established that small amount...

10.1021/jp907652n article EN The Journal of Physical Chemistry C 2009-11-16

Abstract Using metal‐organic (MO)CVD, gold films and arrays of nanoparticles are obtained from volatile organometallic dimethylgold(III) complexes with O, N, S donor ligands. As precursors, such compounds as (CH 3 ) 2 Au(OAc), Au(piv), Au(OQ), Au(SQ), Au(thd), Au(dtc) were used. Deposition processes carried out within a low pressure (LP)CVD reactor additional vacuum ultraviolet (VUV) stimulation, without hydrogen reactant gas. The influence precursor structure on the morphology deposited...

10.1002/cvde.201207004 article EN Chemical Vapor Deposition 2012-09-01
Coming Soon ...