Výsledky vyhledávání - "M. Cem Akatay"

Water–gas shift catalysis over transition metals supported on molybdenum carbide

Autor: Kaiwalya D. Sabnis, Wen-Sheng Lee, Fabio H. Ribeiro, Mayank Shekhar, W. Nicholas Delgass, M. Cem Akatay, Jeffrey T. Miller, Yanran Cui

Publikováno v: Journal of Catalysis. 331:162-171

We report here that WGS rates per total surface area at 120 °C, 7% CO, 22% H 2 O, 8.5% CO 2 , 37% H 2 for Pt, Au, Pd and Ni supported over Mo 2 C were 4–8 times higher than those of the commercial Cu/ZnO/Al 2 O 3 catalyst. In agreement with previo

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Probing the active sites for water–gas shift over Pt/molybdenum carbide using multi-walled carbon nanotubes

Autor: Fred G. Sollberger, Jeffrey T. Miller, Kaiwalya D. Sabnis, Eric A. Stach, Fabio H. Ribeiro, Yanran Cui, M. Cem Akatay, W. Nicholas Delgass

Publikováno v: Journal of Catalysis. 330:442-451

Pt/Mo2C is known to have water–gas shift (WGS) rate per total mole of Pt that is higher than on any oxide-supported Pt catalyst. The difficulties for the characterization of Pt/Mo2C were overcome by preparing the carbide using Multi-Walled Carbon N

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::17129e1478dd59283f551d930f6eedb3
https://doi.org/10.1016/j.jcat.2015.07.032

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Enhancing the stability of copper chromite catalysts for the selective hydrogenation of furfural using ALD overcoating

Autor: Christopher L. Marshall, James A. Dumesic, Jeffrey T. Miller, Hongbo Zhang, Yu Lei, M. Cem Akatay, Fred G. Sollberger, Eric A. Stach, Fabio H. Ribeiro, Jeffrey W. Elam, A. Jeremy Kropf, Guanghui Zhang

Publikováno v: Journal of Catalysis. 317:284-292

The stability of a gas-phase furfural hydrogenation catalyst (CuCr2O4⋅CuO) was enhanced by depositing a thin Al2O3 layer using atomic layer deposition (ALD). Based on temperature-programed reduction (TPR) measurements, the reduction temperature of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0b21287d42b8f427e8f77d5e6c16f45c
https://doi.org/10.1016/j.jcat.2014.07.007

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Gas-phase epoxidation of propylene in the presence of H2 and O2 over small gold ensembles in uncalcined TS-1

Autor: M. Cem Akatay, Eric A. Stach, Wen-Sheng Lee, Fabio H. Ribeiro, W. Nicholas Delgass

Publikováno v: Journal of Catalysis. 313:104-112

A novel catalyst consisting of gold nanoparticles supported on an uncalcined (with template in) titanium silicalite-1 (Au/U-TS-1) and having a very long (∼10–20 h) and unique activation period for gas-phase propylene epoxidation in the presence o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::73e747bcf8e2a6c5517d10a305482ef2
https://doi.org/10.1016/j.jcat.2014.02.013

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Pore Structure and Bifunctional Catalyst Activity of Overlayers Applied by Atomic Layer Deposition on Copper Nanoparticles

Autor: Eric A. Stach, Randall E. Winans, James A. Dumesic, Christian P. Canlas, M. Cem Akatay, Fengyuan Shi, Brandon J. O'Neill, Paul M. Voyles, Jeffrey W. Elam, Tao Li, Ana C. Alba-Rubio

Publikováno v: ACS Catalysis. 4:1554-1557

We present a model system, based on spherical nonporous supports, to facilitate the characterization of supported metal catalysts stabilized by atomic layer deposition (ALD) against sintering and leaching under liquid-phase conditions. Calcination at

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https://doi.org/10.1021/cs500330p

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Enhanced reaction rate for gas-phase epoxidation of propylene using H2 and O2 by Cs promotion of Au/TS-1

Autor: Wen-Sheng Lee, M. Cem Akatay, Eric A. Stach, W. Nicholas Delgass, Fabio H. Ribeiro

Publikováno v: Journal of Catalysis. 308:98-113

Gold clusters supported on titanium silicalite-1 (hereafter denoted as Au/TS-1) with high gold loading at ∼0.1–0.16 wt%, prepared by the deposition precipitation (DP) method, showed about two times enhancement in the PO rate ( ∼ 300 versus ∼

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5f4a4a095820aa73bed1ebc12ead5e7d
https://doi.org/10.1016/j.jcat.2013.05.023

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XANES and EXAFS studies on metal nanoparticle growth and bimetallic interaction of Ni-based catalysts for CO2 reforming of CH4

Autor: M. Cem Akatay, Jeffrey T. Miller, Tianpin Wu, Haiyan Zhao, Hui Wang, Mohsen Shakouri, Chunyu Xi

Publikováno v: Catalysis Today. 207:3-12

Two groups of catalysts containing Ni and/or Co metals and MgAlO x as support material were made using coprecipitation and incipient wetness impregnation methods, respectively. The mechanism of metal particle growth during reduction of the monometall

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https://doi.org/10.1016/j.cattod.2012.09.015

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Predictive morphology, stoichiometry and structure of surface species in supported Ru nanoparticles under H-2 and CO atmospheres from combined experimental and DFT studies

Autor: Christophe Copéret, Karol Furman, Anne Lesage, David Gajan, Fabio H. Ribeiro, M. Cem Akatay, Aleix Comas-Vives

Publikováno v: Physical Chemistry Chemical Physics
Physical Chemistry Chemical Physics, Royal Society of Chemistry, 2016, 18 (3), pp.1969-1979. ⟨10.1039/c5cp06710c⟩
Phys. Chem. Chem. Phys.

We are also grateful to Frank Krumeich and Emma Oakton for electron microscopy images, obtained on the ScopeM platform and to Maxence Valla for assistance with the NMR experiments. In addition, we are thankful to GLANTREO Ltd (Ireland) especially Dr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d9f41b7cfd661946cdb6728be2ce732d
https://hal.archives-ouvertes.fr/hal-01546478

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