Results 31 to 40 of about 145,127 (341)

Electronic parameters in cobalt-based perovskite-type oxides as descriptors for chemocatalytic reactions

Nature Communications, 2020
Design of efficient catalysts requires understanding the decisive electronic parameters for catalytic efficacy and their dependence on elemental composition.
Johannes Simböck, M. Ghiasi, Simon Schönebaum, Ulrich Simon, Frank M. F. de Groot, Regina Palkovits   +5 more
doaj   +1 more source

The steam reforming of acetol on Ni/La2O3-Al2O3 studied by transient and isotopic methods

Catalysis Communications, 2023
Operando-SSITKA (Mass spectrometry-DRIFTS) and other isotopic experiments were employed to investigate the steam reforming of acetol on 10-wt% Ni/La2O3-Al2O3 at 500 °C. A large concentration (1 
Klito C. Petallidou, Kalliopi Kousi, Michalis A. Vasiliades, Christina Papadopoulou, Angelos M. Efstathiou   +4 more
doaj   +1 more source

In situ surface coverage analysis of RuO₂-catalysed HCl oxidation reveals the entropic origin of compensation in heterogeneous catalysis [PDF]

, 2012
In heterogeneous catalysis, rates with Arrhenius-like temperature dependence are ubiquitous. Compensation phenomena, which arise from the linear correlation between the apparent activation energy and the logarithm of the apparent pre-exponential factor ...
Farra, R., Hevia, M., Knop-Gericke, A., López, N., Novell-Leruth, G., Pérez-Ramírez, J., Schlögl, R., Schomäcker, R., Soerijanto, H., Szentimiklósi, L., Teschner, D.   +10 more
core   +2 more sources

Heterogeneous Catalysis on a Disordered Surface

, 1995
We introduce a simple model of heterogeneous catalysis on a disordered surface which consists of two types of randomly distributed sites with different adsorption rates.
D. ben-Avraham, D. Considine, E. Clément, G. Forgacs, G. Grinstein, G. Yablonskii, I. M. Campbell, J. P. Bouchaud, J. W. Evans, K. Fichthorn, L. Frachebourg, P. L. Krapivsky, P. L. Krapivsky, P. Meakin, R. M. Ziff, R. M. Ziff, S. Redner, Ya. G. Sinai   +17 more
core   +1 more source

Review of catalytic systems and thermodynamics for the Guerbet condensation reaction and challenges for biomass valorization [PDF]

, 2015
The Guerbet condensation reaction is an alcohol coupling reaction that has been known for more than a century. Because of the increasing availability of bio-based alcohol feedstock, this reaction is of growing importance and interest in terms of value ...
Gabriels, D, Hernández Enciso, Willinton Yesid, Sels, B, Van Der Voort, Pascal, Verberckmoes, An   +4 more
core   +2 more sources

Utilization of mechanocatalytic oligosaccharides by ethanologenic Escherichia coli as a model microbial cell factory

AMB Express, 2020
Mechanocatalysis is a promising method for depolymerization of lignocellulosic biomass. Microbial utilization of the resulting oligosaccharides is one potential route of adding value to the depolymerized biomass.
Tao Jin, Mats Käldström, Adriana Benavides, Marcelo D. Kaufman Rechulski, Laura R. Jarboe   +4 more
doaj   +1 more source

Transfer hydrogenation of methyl levulinate with methanol to gamma valerolactone over Cu-ZrO2: A sustainable approach to liquid fuels

Catalysis Communications, 2022
Cu-ZrO2 is demonstrated to be a highly effective catalyst for the transfer hydrogenation of methyl levulinate to γ-valerolactone, using methanol as the hydrogen donor.
Mark Douthwaite, Bin Zhang, Sarwat Iqbal, Peter J. Miedziak, Jonathan K. Bartley, David J. Willock, Graham J. Hutchings   +6 more
doaj   +1 more source

Chiral surfaces self-assembling in one-component systems with isotropic interactions [PDF]

, 2012
We show that chiral symmetry can be broken spontaneously in one-component systems with isotropic interactions, i.e. many-particle systems having maximal a priori symmetry.
E. Edlund, E. Eliel, E. N. Jacobsen, G. Blaschke, G. B. Folland, M. Nilsson Jacobi, O. Lindgren   +6 more
core   +2 more sources

Porous Nanocrystalline Silicon Supported Bimetallic Pd-Au Catalysts: Preparation, Characterization, and Direct Hydrogen Peroxide Synthesis

Frontiers in Chemistry, 2018
Bimetallic Pd-Au catalysts were prepared on the porous nanocrystalline silicon (PSi) for the first time. The catalysts were tested in the reaction of direct hydrogen peroxide synthesis and characterized by standard structural and chemical techniques.
Dmitriy I. Potemkin, Dmitriy I. Potemkin, Dmitry K. Maslov, Konstantin Loponov, Pavel V. Snytnikov, Pavel V. Snytnikov, Yuri V. Shubin, Yuri V. Shubin, Pavel E. Plyusnin, Pavel E. Plyusnin, Dmitry A. Svintsitskiy, Dmitry A. Svintsitskiy, Vladimir A. Sobyanin, Alexei A. Lapkin, Alexei A. Lapkin   +14 more
doaj   +1 more source

Zeolite-β based molecular sieves: A potential catalyst for esterification of biomass derived model compound levulinic acid

Materials Science for Energy Technologies, 2021
A series of hetero ions (iron, boron, gallium, titanium, and zinc [Fe3+, B3+, Ga3+, Ti4+, and Zn2+, respectively) incorporated zeolite-β is prepared via a simple hydrothermal method within 48 h at 170 °C.
Preeti Sahu, Ayyamperumal Sakthivel
doaj   +1 more source