Results 11 to 20 of about 705,088 (330)

Kinetic Regularities of Methane Dry Reforming Reaction on Nickel-Containing Modified Ceria–Zirconia

Energies, 2021
The Ni-containing catalysts based on ceria–zirconia doped with Ti and Ti+Nb were prepared by the solvothermal method in supercritical fluids. Ni deposition was carried out by incipient wetness impregnation and the one-pot technique.
Valeria Fedorova, Mikhail Simonov, Konstantin Valeev, Yuliya Bespalko, Ekaterina Smal, Nikita Eremeev, Ekaterina Sadovskaya, Tamara Krieger, Arcady Ishchenko, Vladislav Sadykov   +9 more
doaj   +1 more source

Carbon Formation during Methane Dry Reforming over Ni-Containing Ceria-Zirconia Catalysts

Nanomaterials, 2022
Two series of Ni/Ce(Ti/Nb)ZrO2 catalysts were prepared using citrate route and original solvothermal continuous flow synthesis in supercritical isopropanol and studied in dry reforming of methane (DRM). TEM, XPS and FTIRS of adsorbed CO confirm influence
Ekaterina Smal, Yulia Bespalko, Marina Arapova, Valeria Fedorova, Konstantin Valeev, Nikita Eremeev, Ekaterina Sadovskaya, Tamara Krieger, Tatiana Glazneva, Vladislav Sadykov, Mikhail Simonov   +10 more
doaj   +1 more source

Modern Trends in Design of Catalysts for Transformation of Biofuels into Syngas and Hydrogen: From Fundamental Bases to Performance in Real Feeds

Energies, 2021
This review considers problems related to design of efficient structured catalysts for natural gas and biofuels transformation into syngas. Their active components are comprised of fluorite, perovskite and spinel oxides or their nanocomposites (both bulk
Vladislav Sadykov, Mikhail Simonov, Nikita Eremeev, Natalia Mezentseva   +3 more
doaj   +1 more source

Nanoparticles for Catalysis [PDF]

Nanomaterials, 2016
Nanoscience emerged in the last decades of the 20th century with the general aim to determine those properties that appear when small particles of nanometric dimensions are prepared and stabilized.[...]
Hermenegildo García, Hermenegildo García, Sergio Navalon   +2 more
openaire   +6 more sources

Testing conditions for CoMo HDS catalyst in the kinetic region: integrated approach using the math calculations and catalytic experiments

Chimica Techno Acta, 2023
The main idea of the investigation was to define testing parameters with the lowest influence of internal and external diffusion on catalytic activity in hydrodesulfurization of dibenzothiophene.
Polina P. Mukhacheva, Yuliya V. Vatutina, Ivan A. Mik, Ksenia A. Nadeina, Maxim O. Kazakov, Oleg P. Klenov, Oleg V. Klimov, Aleksandr S. Noskov   +7 more
doaj   +1 more source

Microheterogeneous Catalysis [PDF]

Molecules, 2010
The catalytic effect of micelles, polymers (such as DNA, polypeptides) and nanoparticles, saturable receptors (cyclodextrins and calixarenes) and more complex systems (mixing some of the above mentioned catalysts) have been reviewed. In these microheterogeneous systems the observed changes in the rate constants have been rationalized using the ...
Bernal Pérez, Eva, Marchena Barriento, María José, Sánchez Burgos, Francisco   +2 more
openaire   +4 more sources

Diastereodivergent Catalysis

JACS Au, 2023
Alongside enantioselective catalysis, synthetic chemists are often confronted by the challenge of achieving catalyst control over the relative configuration to stereodivergently access desired diastereomers. Typically, these approaches iteratively or simultaneously control multiple stereogenic units for which dual catalytic methods comprising ...
Moser, Daniel, Schmidt, Tanno A., Sparr, Christof   +2 more
openaire   +3 more sources

Novel Ni/Ce(Ti)ZrO₂ Catalysts for Methane Dry Reforming Prepared in Supercritical Alcohol Media

Energies, 2020
To achieve a high activity and coking stability of nickel catalysts in dry reforming of methane, materials comprised of ceria–zirconia doped by Ti were investigated as supports.
Yuliya Bespalko, Ekaterina Smal, Mikhail Simonov, Konstantin Valeev, Valeria Fedorova, Tamara Krieger, Svetlana Cherepanova, Arcady Ishchenko, Vladimir Rogov, Vladislav Sadykov   +9 more
doaj   +1 more source

Processive Catalysis [PDF]

Angewandte Chemie International Edition, 2014
AbstractNature’s enzymes are an ongoing source of inspiration for scientists. The complex processes behind their selectivity and efficiency is slowly being unraveled, and these findings have spawned many biomimetic catalysts. However, nearly all focus on the conversion of small molecular substrates.
van Dongen, S.F.H., Elemans, J.A.A.W., Rowan, A.E., Rowan, A.E., Nolte, R.J.M.   +4 more
openaire   +4 more sources

Anion–π catalysis on carbon allotropes

Beilstein Journal of Organic Chemistry, 2023
Anion–π catalysis, introduced in 2013, stands for the stabilization of anionic transition states on π-acidic aromatic surfaces. Anion–π catalysis on carbon allotropes is particularly attractive because high polarizability promises access to really strong
M. Ángeles Gutiérrez López, Mei-Ling Tan, Giacomo Renno, Augustina Jozeliūnaitė, J. Jonathan Nué-Martinez, Javier Lopez-Andarias, Naomi Sakai, Stefan Matile   +7 more
doaj   +1 more source