A5077066631- Catalytic Processes in Materials Science
- Catalysis and Oxidation Reactions
- Copper-based nanomaterials and applications
- Electron and X-Ray Spectroscopy Techniques
- Advanced Chemical Physics Studies
- Nanomaterials for catalytic reactions
- Catalysts for Methane Reforming
- Carbon Nanotubes in Composites
- Catalysis and Hydrodesulfurization Studies
- Ammonia Synthesis and Nitrogen Reduction
- Graphene research and applications
- Electrocatalysts for Energy Conversion
- Semiconductor materials and devices
- Laser-Ablation Synthesis of Nanoparticles
- Electronic and Structural Properties of Oxides
- Diamond and Carbon-based Materials Research
- ZnO doping and properties
- Advancements in Solid Oxide Fuel Cells
- Advanced Photocatalysis Techniques
- nanoparticles nucleation surface interactions
- Mesoporous Materials and Catalysis
- Radioactive element chemistry and processing
- Ion-surface interactions and analysis
- Gas Sensing Nanomaterials and Sensors
- Advanced Materials Characterization Techniques
Boreskov Institute of Catalysis
2015-2024
Siberian Branch of the Russian Academy of Sciences
2010-2022
Novosibirsk State University
2011-2020
Novosibirsk Tuberculosis Research Institute
2016-2020
Federal Research Centre Coal and Coal Chemistry
2017
Russian Academy of Sciences
2002-2014
L.V. Pisarzhevskii Institute of Physical Chemistry
2010
National Academy of Sciences of Ukraine
2010
Centre National de la Recherche Scientifique
2006
Centre Interuniversitaire de Recherche et d’Ingénierie des Matériaux
2006
Copper(II) oxide nanopowders exhibit a high catalytic activity in CO oxidation at low temperatures. The combination of situ XPS, XRD, and HRTEM methods was applied to investigate initial steps CuO nanoparticles reduction, identify oxygen copper species revealed structural features the dependence on reducing power reaction medium. At deficient surface metastable Cu4O3 formed under mild conditions −10–5 mbar or + O2 mixture with excess. Destruction structures strong medium (P(CO) ≥ 10–2 mbar)...
Reducing the operating temperature of oxidation catalysts is important for designing energy efficient processes, extending catalyst lifetime, and abating pollutants, especially in cold climates. Herein, high CO activity at sub-ambient temperatures reported Pt/CeO2 with content Pt form dispersed Pt2+ Pt4+ centers. Whereas reference 1 wt%Pt was active only above 100ᵒC, 8 20 converted 60 90 % CO, respectively, below 0ᵒC. Ionic platinum shown to facilitate oxygen release from ceria lower...
Oxidized palladium nanoparticles, PdOx (x ≈ 1.3), measuring approximately 3 nm in size were prepared by RF-discharge under an oxygen atmosphere. The Pd3d X-ray photoelectron spectra (XPS) of oxidized nanoparticles show two main peaks with binding energy Eb(Pd3d5/2) at ∼336.5 and 338.6 eV, which assigned to Pd2+ Pd4+ species, respectively. Attempts synthesize pure plasma treatment without the presence unsuccessful. High-resolution transmission electron microscopy (HRTEM) data defect structure...
Studies of highly oxidized rhodium species as potential active sites in catalytic oxidation reactions are great interest. In this work, we investigated the properties nanostructured film prepared by radio frequency discharge an oxygen atmosphere. The charge states Rh RhOx particles, their thermal stability, and reactivity toward CO were analyzed comparison with thermally Rh2O3 oxide. formation Rh4+ a composition Rh4+/Rh3+ oxyhydroxide structures was shown to take place plasma-synthesized...
Pt–CeO2 nanocomposites were obtained by coprecipitation, varying the Pt loading over a wide range of 1–30 wt %. The samples calcined in air at 450–1000 °C. investigated set structural (X-ray diffraction, extended X-ray absorption fine structure (EXAFS), pair distribution function (PDF), and transmission electron microscopy) spectroscopic photoelectron spectroscopy Raman spectroscopy) methods. Over whole loading, main species Pt2+ Pt4+. They localized either single-atom state or form PtOx...
CO molecules can be efficiently oxidized over Pt/CeO2 catalysts, but the stability and reactivity of different states Pt in catalysts are still unclear. Here we combine experimental computational methods to characterize subjected reductive oxidative pre-treatments exposed oxidation reaction conditions. Particles metallic Pt, known catalytically active at elevated temperature, shown precursors for formation, under operando conditions, more stable PtOx particles that enable below room...
In this paper, physical methods in combination with quantum chemistry calculations are used to study the local structure of Pd<sub>x</sub>Ce<sub>1−x</sub>O<sub>2−δ</sub>solid solutions.
Highly active Pd/CeO<sub>2</sub> catalysts were synthesized from nanosized Pd and ceria obtained by PLA.
Abstract The catalytic properties of 1 wt % Ru catalysts with the same mean cluster size 1.4–1.5 nm supported on herringbone‐type carbon nanofibers different N contents were compared for H 2 production from formic acid decomposition. catalyst support 6.8 gave a 1.5–2 times higher activity dehydrogenation reaction (CO , ) than undoped support. in dehydration (CO, O) was same. As result, selectivity to increased significantly 83 92 N‐doping, and activation energies both reactions close (55–58...
Platinum-oxide nanoparticles were prepared through the radio-frequency (RF) discharge sputtering of a Pt electrode in an oxygen atmosphere. The structure, particles size, electronic properties, and surface composition RF-sputtered studied by using transmission electron microscopy X-ray photoelectron spectroscopy. application RF method resulted formation highly oxidized Pt(4+) species that stable under ultrahigh vacuum conditions up to 100 °C, indicating capability -O play important role...