Výsledky vyhledávání - "Krasimir Tenchev"

Akademický článek

Pt-Modified Nano-Sized Mn2O3 Oxide Prepared from the Mn3O4 Phase with Tetragonal Symmetry for CO Oxidation

Autor: Silviya Todorova, Anton Naydenov, Maya Shopska, Hristo Kolev, Iliyana Yordanova, Krasimir Tenchev

Publikováno v: Symmetry, Vol 14, Iss 12, p 2543 (2022)

One of the current problems in the environmental catalysis is the design of an effective and less costly catalytic system for the oxidation of CO. The nano-sized α-Mn2O3 oxide has been prepared and modified with 0.5 wt.% Pt. The catalysts have been

Externí odkaz: https://doaj.org/article/8c23db4b02234312b15b53892450f428

Zobrazit plný text záznamu

Plný text ve formátu HTML

NiMo Catalysts Supported on Al-Based Mixed Oxide Prepared By Hydrothermal Method: Effect of Zn/Al Ratio and Addition of Silica on HDS Activity

Autor: Krasimir Tenchev, Alla Spojakina, K. Jiratova, R. Palcheva, G. Avdeev, Luděk Kaluža, Georgi Tyuliev, J. Moravčík, Lubomir Dimitrov

Publikováno v: Catalysis Letters. 150:3276-3286

The effect of Zn/Al ratio and addition of silica to Al–Znx oxides on the structure and catalytic properties of supported NiMo catalysts in hydrodesulfurization reaction of thiophene was studied. NiMo catalysts were synthesized by simultaneous impre

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::05da896c7ba41011e7d61e9de6c33cf4
https://doi.org/10.1007/s10562-020-03232-w

Zobrazit plný text záznamu

Plný text ve formátu HTML

Co–Ce Oxides Supported on SBA-15 for VOCs Oxidation

Autor: Pierrick Gaudin, Ralitsa Velinova, Anton Naydenov, Jean-Luc Blin, Krasimir Tenchev, Bénédicte Lebeau, Anna Dotzeva, S. Todorova, Laure Michelin, Loïc Vidal, Hristo Kolev

Publikováno v: Catalysts, Vol 11, Iss 366, p 366 (2021)
Catalysts
Catalysts, MDPI, 2021, 11 (3), pp.366. ⟨10.3390/catal11030366⟩
Catalysts, 2021, 11 (3), pp.366. ⟨10.3390/catal11030366⟩
Volume 11
Issue 3

Reported here are new data on the structural and catalytic properties of a series of mono-component cobalt and bi-component Co–Ce catalysts supported on SBA-15 (Santa Barbara Amorphous-15)). The catalysts performance has been evaluated by tests on

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b55ebea19186f040684d6626c1a684cc
https://www.mdpi.com/2073-4344/11/3/366

Zobrazit plný text záznamu

Reaction Kinetics and Mechanism of VOCs Combustion on Mn-Ce-SBA-15

Autor: Anton Naydenov, Ralitsa Velinova, Jean-Luc Blin, Laure Michelin, Bénédicte Lebeau, Hristo Kolev, Yordanka Karakirova, Daniela Karashanova, Loïc Vidal, Anna Dotzeva, Krasimir Tenchev, Silviya Todorova

Publikováno v: Catalysts; Volume 12; Issue 6; Pages: 583

A propane combustion catalyst based on Mn and Ce and supported by SBA-15 was prepared by the “two-solvents” method aiming at the possible application in catalytic converters for abatement of alkanes in waste (exhaust) gases. The catalyst characte

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ddb1bcb765238e3695a2a3b9b794ff29
https://doi.org/10.3390/catal12060583

Zobrazit plný text záznamu

Role of the Various Surface Sites and Species in CO Hydrogenation Over Alumina-supported Co-Pd Catalysts

Autor: Maya Shopska, S. Todorova, Iskra Shtereva, Hristo Kolev, G. Kadinov, Krasimir Tenchev

The paper is focused on evaluation of active centres and impact of adsorbed species on (10 % Co + 0.5 % Pd) / Al2O3 catalyst system performance aiming selectivity optimization. Application of different sets of precursor pretreatment and reduction res

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::17012b94f8b4b15ef7537b8959bbbc57

Zobrazit plný text záznamu

New Insight into the Interplay of Method of Deposition, Chemical State of Pd, Oxygen Storage Capability and Catalytic Activity of Pd-Containing Perovskite Catalysts for Combustion of Methane

Autor: Krasimir Tenchev, Sonya Harizanova, Radostina Stoyanova, Georgy Ivanov, Anton Naydenov, Silva Stanchovska, Ekaterina Zhecheva

Publikováno v: Catalysts; Volume 11; Issue 11; Pages: 1399
Catalysts, Vol 11, Iss 1399, p 1399 (2021)

Elaboration of Pd-supported catalysts for catalytic combustion is, nowadays, considered as an imperative task to reduce the emissions of methane. This study provides new insight into the method of deposition, chemical state of Pd and oxygen storage c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62cba965f3cef64e3a34aadb212bf652
https://www.mdpi.com/2073-4344/11/11/1399

Zobrazit plný text záznamu

Gold catalysts supported on ceria-modified mesoporous zirconia for low-temperature water-gas shift reaction

Autor: Tie-Zhen Ren, Yuan Zewei, Vasko Idakiev, Tabakova Tatjana T, Krasimir Tenchev, Bao-Lian Su

Publikováno v: Journal of Porous Materials. 19(1):15-20

New gold catalytic system prepared on ceria-modified mesoporous zirconia used as water–gas shift (WGS) catalyst is reported. Mesoporous zirconia was synthesized using surfactant templating method through a neutral [C13(EO)6-Zr(OC3H7)4] assembly pat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9167835b0fcc7f91d453427a8077aaab
https://researchportal.unamur.be/en/publications/b6564463-f563-47eb-a195-68c8092666f7

Zobrazit plný text záznamu

Effect of Co-content on the structure and activity of Co–Al hydrotalcite-like materials as catalyst precursors for CO oxidation

Autor: Alla Spojakina, R. Edreva-Kardjieva, Margarita Gabrovska, Krasimir Tenchev, P. Tzvetkov, Lachezar A. Petrov

Publikováno v: Applied Catalysis A: General. 399:242-251

The present investigation was undertaken in an endeavor to study the effect of the cobalt content on the structure and activity of Co–Al hydrotalcite-like materials as catalyst precursors for CO oxidation by varying the Co 2+ /Al 3+ atomic ratio, t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e32052eafae7ee9bdf7c7be95b9989fe
https://doi.org/10.1016/j.apcata.2011.04.007

Zobrazit plný text záznamu

Co3O4 + CeO2/SiO2 Catalysts for n-Hexane and CO Oxidation

Autor: Rosa Pereñíguez, Alfonso Caballero, G. Kadinov, S. Todorova, Juan P. Holgado, Krasimir Tenchev

Publikováno v: Catalysis Letters. 129:149-155

Two-component Co–Ce samples deposited onto SiO2 have been prepared, characterized and tested in the reaction of complete n-hexane and CO oxidation. It was established that cerium enhanced the catalytic activity of cobalt in the reaction of n-hexane

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::37a50e7b99df50805b7653d4d29ecf9a
https://doi.org/10.1007/s10562-008-9805-x

Zobrazit plný text záznamu

Particle size and support effects on the complete benzene oxidation by Co and Co–Pt catalysts

Autor: G. Kadinov, Vladislav Kostov-Kytin, Krasimir Tenchev, S. Todorova, Yuri Kalvachev

Publikováno v: Journal of Materials Science. 42:3315-3320

Monometallic cobalt and bimetallic Co–Pt samples of various particle sizes have been prepared using SiO2 and synthetic kenyaite (layered silicate) as a support. They are characterized by elemental analysis, XRD, TPR, and XPS. Cobalt is introduced b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a1fd52ea8eeaa869cea42b8f5814f54f
https://doi.org/10.1007/s10853-006-0894-x

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání