Core/Shell and Hollow Metal-Oxide Nanoparticles Supported on ZSM-5: Synthesis and Properties - Conference attendances | Sciact - CRIS-system of Boreskov Institute of Catalysis

Core/Shell and Hollow Metal-Oxide Nanoparticles Supported on ZSM-5: Synthesis and Properties Conference attendances

Language

Английский

Participant type

Стендовый

Conference

EuropaCat-XII: 12th European Congress on Catalysis “Catalysis: Balancing the use of fossil and renewable resources”
30 Aug - 4 Sep 2015 , Казань

Authors

Yashnik Svetlana Anatolʹevna ¹ , Zaikovskii Vladimir Ivanovich ¹ , Sharafutdinov Marat Rashidovich ² , Saraev Andrey Aleksandrovich ¹ , Kaichev Vasily Vasilievich ¹ , Ismagilov Zinfer Rishatovich ^1,3 , Parmon Valentin Nikolaevich ¹

Affiliations

1	Boreskov Institute of Catalysis SB RAS
2	Institute of Solid State Chemistry and Mechanochemistry SB RAS
3	Institute of Coal Сhemistry and Material Science of the Siberian Branch of the RAS

Current communication is devoted to study of oxidation processes of metal (Cu, Ni, Co) nanoparticles supported on ZSM-5 zeolite, aiming to find correlation between structures of metal-oxide particles, such as core/shell, hollow and bulk, and oxidation conditions. TPR-H2, XRD in situ, HRTEM, XPS with sample pretreatment in high-pressure cell, UV-Vis DR, and the optical spectra modeling were used to confirm the hypothesis about structure of metal-oxide particles. CO and NO oxidation as well as NO SCR by propane were employed to examine catalytic characteristics of different metal-oxide particles. Nanoscale Kirkendall effect was shown to be reveal at low-temperature oxidation of Cu and Ni nanoparticles and at hightemperature oxidation of Co. Hollow metal-oxide nanoparticles are formed from core/shell particles containing the 3-5 nm oxide layer on surface of 10-20 nm metal particle due to different diffusion coefficients. The core/shell, hollow and bulk metal-oxide particles have different optical, redox and catalytic properties.

Yashnik S.A. , Zaikovskii V.I. , Sharafutdinov M.R. , Saraev A.A. , Kaichev V.V. , Ismagilov Z.R. , Parmon V.N.
Core/Shell and Hollow Metal-Oxide Nanoparticles Supported on ZSM-5: Synthesis and Properties
EuropaCat-XII: 12th European Congress on Catalysis “Catalysis: Balancing the use of fossil and renewable resources” 30 Aug - 4 Sep 2015