Results 21 to 30 of about 141,354 (295)

Dry reforming of CH4 over NiCo/Ce0.75Zr0.25O2-δ: The effect of Co on the site activity and carbon pathways studied by transient techniques

Catalysis Communications, 2021
The effects of cobalt in the CeZrO2-supported NiCo (3 wt%, Co/ :Ni=3/2) on the DRM at 750oC were investigated by the transient method and use of 18O2 and 13CO2. Transient kinetic rates of carbon deposition and gasification by the support’s oxygen, TOF (s-
M.A. Vasiliades, C.M. Damaskinos, P. Djinović, A. Pintar, A.M. Efstathiou   +4 more
doaj   +1 more source

First-principles kinetic modeling in heterogeneous catalysis: an industrial perspective on best-practice, gaps and needs [PDF]

, 2012
Electronic structure calculations have emerged as a key contributor in modern heterogeneous catalysis research, though their application in chemical reaction engineering remains largely limited to academia.
Reuter, Karsten, Reyniers, Marie-Françoise, Sabbe, Maarten   +2 more
core   +1 more source

Studying Proton Mobility in Zeolites by Varying Temperature Infrared Spectroscopy

Molecules, 2019
We report a varying temperature infrared spectroscopic (VTIR) study with partial deuterium isotopic exchange as a method for characterizing proton mobility in acidic materials.
Pit Losch, Hrishikesh Joshi, Niklas Stegmann, Olena Vozniuk, Wolfgang Schmidt   +4 more
doaj   +1 more source

A transient isotopic study for investigating important design parameters of NiCo/Ce0.75Zr0.25O2-δ catalyst for the dry reforming of methane

Catalysis Communications, 2023
The effects of metal loading and particle size of NiCo alloy deposited on Ce0.75Zr0.25O2-δ carrier on the carbon reaction paths of dry reforming of methane at 750 °C with respect to the observed long-term activity profiles was elucidated.
M.A. Vasiliades, C.M. Damaskinos, P. Djinović, A. Pintar, A.M. Efstathiou   +4 more
doaj   +1 more source

Cooperative catalysis by silica-supported organic functional groups [PDF]

, 2008
Hybrid inorganic–organic materials comprising organic functional groups tethered from silica surfaces are versatile, heterogeneous catalysts. Recent advances have led to the preparation of silica materials containing multiple, different functional groups
Davis, Mark E., Margelefsky, Eric L., Zeidan, Ryan K.   +2 more
core   +1 more source

Metal-organic frameworks as selective or chiral oxidation catalysts [PDF]

, 2014
Since the discovery of Metal Organic Frameworks (MOFs) in the early 1990s, the amount of new structures has grown exponentially. A MOF typically consists of inorganic nodes that are connected by organic linkers to form crystalline, highly porous ...
Leus, Karen, Liu, Ying-Ya, Van Der Voort, Pascal   +2 more
core   +1 more source

POM@MOF hybrids : synthesis and applications [PDF]

, 2020
The hybrid materials that are created by supporting or incorporating polyoxometalates (POMs) into/onto metal–organic frameworks (MOFs) have a unique set of properties.
Abednatanzi, Sara, Leus, Karen, Liu, Ying-Ya, Sun, Jiamin, Van Der Voort, Pascal   +4 more
core   +1 more source

Some considerations related to the use of the Scherrer equation in powder X-ray diffraction as applied to heterogeneous catalysts [PDF]

, 2016
This short overview summarises some of the basic considerations which should be undertaken when the Scherrer equation is applied to reflection widths in X-ray diffraction patterns of heterogeneous catalysts in order to extract meaningful information ...
Hargreaves, J.S.J.
core   +1 more source

Synthesis, properties, and activity of MoVTeNbO catalysts modified by zirconia-pillared clays in oxidative dehydrogenation of ethane

Open Chemistry, 2021
Composites comprising MoVTeNbO mixed oxide and zirconia-pillared montmorillonite clays (PilCs) were prepared. XRD and TEM with EDX studies confirmed the preservation of M1 MoVTeNbO phase in these composites responsible for high activity and selectivity ...
Shorayeva Kamshat Abithanovna, Massalimova Bakytgul Kabykenovna, Bespalko Yulia Nikolaevna, Kovalev Evgenii Pavlovich, Ishchenko Arcady Vladimirovich, Sadykov Vladislav Aleksandrovich   +5 more
doaj   +1 more source

Visible-Light-Active N-Doped TiO₂ Photocatalysts: Synthesis from TiOSO₄, Characterization, and Enhancement of Stability Via Surface Modification

Nanomaterials, 2022
This paper describes the chemical engineering aspects for the preparation of highly active and stable nanocomposite photocatalysts based on N-doped TiO2.
Nikita Kovalevskiy, Dmitry Svintsitskiy, Svetlana Cherepanova, Stanislav Yakushkin, Oleg Martyanov, Svetlana Selishcheva, Evgeny Gribov, Denis Kozlov, Dmitry Selishchev   +8 more
doaj   +1 more source