CO oxidation over ruthenium: identification of the catalytically active phases at near-atmospheric pressures

2012 ◽  
Vol 14 (19) ◽  
pp. 6688 ◽  
Author(s):  
Feng Gao ◽  
D. Wayne Goodman
Keyword(s):  
Co Oxidation ◽  
Catalytically Active

Catalytically Active Rh Sub-Nanoclusters on TiO2 for CO Oxidation at Cryogenic Temperatures

2016 ◽  
Vol 128 (8) ◽  
pp. 2870-2874 ◽  
Author(s):  
Hongling Guan ◽  
Jian Lin ◽  
Botao Qiao ◽  
Xiaofeng Yang ◽  
Lin Li ◽  
...  
Keyword(s):  
Co Oxidation ◽  
Cryogenic Temperatures ◽  
Catalytically Active

scholarly journals CO Oxidation on Stepped Rh Surfaces: μm-Scale Versus Nanoscale

2019 ◽  
Vol 150 (3) ◽  
pp. 605-612 ◽  
Author(s):  
Y. Suchorski ◽  
I. Bespalov ◽  
J. Zeininger ◽  
M. Raab ◽  
M. Datler ◽  
...  
Keyword(s):  
Co Oxidation ◽  
Oxidation Reaction ◽  
Active Surface ◽  
Reaction Conditions ◽  
Miller Index ◽  
Co Oxidation Reaction ◽  
Catalytically Active ◽  
Field Emission Microscopy ◽  
Photoemission Electron

Abstract The catalytic CO oxidation reaction on stepped Rh surfaces in the 10−6 mbar pressure range was studied in situ on individual μm-sized high-Miller-index domains of a polycrystalline Rh foil and on nm-sized facets of a Rh tip, employing photoemission electron microscopy (PEEM) and field-ion/field-emission microscopy (FIM/FEM), respectively. Such approach permits a direct comparison of the reaction kinetics for crystallographically different regions under identical reaction conditions. The catalytic activity of the different Rh surfaces, particularly their tolerance towards poisoning by CO, was found to be strongly dependent on the density of steps and defects, as well as on the size (µm vs. nm) of the respective catalytically active surface. Graphic Abstract

In situ analysis of catalytically active Pd surfaces for CO oxidation with near ambient pressure XPS

2016 ◽  
Vol 260 ◽  
pp. 14-20 ◽  
Author(s):  
Hiroshi Kondoh ◽  
Ryo Toyoshima ◽  
Yuji Monya ◽  
Masaaki Yoshida ◽  
Kazuhiko Mase ◽  
...  
Keyword(s):  
Co Oxidation ◽  
Ambient Pressure ◽  
In Situ Analysis ◽  
Ambient Pressure Xps ◽  
Catalytically Active ◽  
Near Ambient Pressure Xps

scholarly journals Morphology Effect of Ceria Supports on Gold Nanocluster Catalyzed CO Oxidation

2021 ◽  
Author(s):  
Zhiming Li ◽  
Xinyu Zhang ◽  
Quanquan Shi ◽  
Xia Gong ◽  
Hui Xu ◽  
...  
Keyword(s):  
Co Oxidation ◽  
Chemical Reactions ◽  
Active Sites ◽  
Gold Nanocluster ◽  
Catalytically Active ◽  
Morphology Effect

Interfacial perimeter is generally viewed as the catalytically active sites for a number of chemical reactions over the oxide-supported nanogold catalysts. Here, the well-defined CeO2 of nanocube, nanorod and nanopolyhedra...

Sol-Gel Synthesis of Nanostructured Alumina Supports for CO Oxidation Catalysts

2018 ◽  
Vol 917 ◽  
pp. 152-156
Author(s):  
Elena Krivoshapkina ◽  
Pavel Krivoshapkin ◽  
Aleksey Vedyagin
Keyword(s):  
Co Oxidation ◽  
Sol Gel ◽  
Catalyst Support ◽  
Combustion Method ◽  
Alumina Nanoparticles ◽  
Active Components ◽  
Solution Combustion ◽  
Catalytically Active ◽  
A New Technique ◽  
Sol Gel Synthesis

In present work, a new technique to prepare alumina nanoparticles and nanofibers using a sol-gel method was proposed. A solution combustion method was applied to form a nanostructured catalytically active layer of CuO–Co3O4–CeO2 on the surface of the alumina. The uniform distribution and fine dispersion of active components provide the appropriate activity of the catalysts obtained in a model reaction of CO oxidation. The morphology of nanostructured alumina was found to affect the catalytic behavior. Carbon monoxide conversion was observed at lower temperatures when alumina nanofibers were used as a catalyst support.

Design of catalytically active porous gold structures from a bottom-up method: The role of metal traces in CO oxidation and oxidative coupling of methanol

2019 ◽  
Vol 375 ◽  
pp. 279-286 ◽  
Author(s):  
Cansunur Demirci ◽  
Sergio Marras ◽  
Mirko Prato ◽  
Lea Pasquale ◽  
Liberato Manna ◽  
...  
Keyword(s):  
Co Oxidation ◽  
Oxidative Coupling ◽  
Bottom Up ◽  
Porous Gold ◽  
Catalytically Active

Back Cover: Catalytically Active Rh Sub-Nanoclusters on TiO2 for CO Oxidation at Cryogenic Temperatures (Angew. Chem. Int. Ed. 8/2016)

2016 ◽  
Vol 55 (8) ◽  
pp. 2946-2946
Author(s):  
Hongling Guan ◽  
Jian Lin ◽  
Botao Qiao ◽  
Xiaofeng Yang ◽  
Lin Li ◽  
...  
Keyword(s):  
Co Oxidation ◽  
Cryogenic Temperatures ◽  
Back Cover ◽  
Catalytically Active

scholarly journals Catalytically active and thermally stable core–shell gold–silica nanorods for CO oxidation

RSC Advances ◽  
2021 ◽  
Vol 11 (19) ◽  
pp. 11642-11650
Author(s):  
Yidong Chen ◽  
Sarah Lerch ◽  
Zafer Say ◽  
Christopher Tiburski ◽  
Christoph Langhammer ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Co Oxidation ◽  
Gold Nanorods ◽  
Oxidation Reaction ◽  
Core Shell ◽  
Nanoparticle Catalysts ◽  
Co Oxidation Reaction ◽  
Catalytically Active ◽  
Stable Core ◽  
Silica Nanorods

Gold nanorods stabilized with mesoporous silica shells are characterized and used as the catalyst for a model CO oxidation reaction to counter the costly sintering phenomena found in many industrial nanoparticle catalysts.

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