Gold-Nano Particles Supported on Na-Y and H-Y Types Zeolites: Activity and Thermal Stability for CO Oxidation Reaction

2008 ◽  
Vol 128 (1-2) ◽  
pp. 57-63 ◽  
Author(s):  
S. Jafari ◽  
H. Asilian Mahabady ◽  
H. Kazemian
Keyword(s):  
Thermal Stability ◽  
Co Oxidation ◽  
Oxidation Reaction ◽  
Nano Particles ◽  
Co Oxidation Reaction ◽  
Gold Nano Particles

Transient Experiments on CO2Formation by the CO Oxidation Reaction over Oxygen-Rich Ru(0001) Surfaces

1999 ◽  
Vol 103 (30) ◽  
pp. 6267-6271 ◽  
Author(s):  
A. Böttcher ◽  
M. Rogozia ◽  
H. Niehus ◽  
H. Over ◽  
G. Ertl
Keyword(s):  
Co Oxidation ◽  
Oxidation Reaction ◽  
Co Oxidation Reaction ◽  
Transient Experiments

Synthesis of silica supported AuCu nanoparticle catalysts and the effects of pretreatment conditions for the CO oxidation reaction

2011 ◽  
Vol 13 (7) ◽  
pp. 2571 ◽  
Author(s):  
J. Chris Bauer ◽  
David Mullins ◽  
Meijun Li ◽  
Zili Wu ◽  
E. Andrew Payzant ◽  
...  
Keyword(s):  
Co Oxidation ◽  
Oxidation Reaction ◽  
Nanoparticle Catalysts ◽  
Co Oxidation Reaction ◽  
Pretreatment Conditions

Atomically dispersed Au catalysts supported on CeO2 foam: controllable synthesis and CO oxidation reaction mechanism

Nanoscale ◽  
2017 ◽  
Vol 9 (43) ◽  
pp. 16817-16825 ◽  
Author(s):  
Hao Wang ◽  
Jianhua Shen ◽  
Jianfei Huang ◽  
Tengjing Xu ◽  
Jingrun Zhu ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Co Oxidation ◽  
Oxidation Reaction ◽  
Co Adsorption ◽  
Controllable Synthesis ◽  
Co Oxidation Reaction

The Au atoms on CeO2 foam are a more stable site for CO adsorption on the catalysts.

scholarly journals Differences in the Catalytic Behavior of Au-Metalized TiO2 Systems During Phenol Photo-Degradation and CO Oxidation

Catalysts ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 331 ◽  
Author(s):  
Oscar Laguna ◽  
Julie Murcia ◽  
Hugo Rojas ◽  
Cesar Jaramillo-Paez ◽  
Jose Navío ◽  
...  
Keyword(s):  
Co Oxidation ◽  
Gas Phase ◽  
Noble Metal ◽  
Oxidation Reaction ◽  
Considerable Increase ◽  
Deposition Time ◽  
Phenol Degradation ◽  
Photo Degradation ◽  
Co Oxidation Reaction ◽  
Phenol Conversion

For this present work, a series of Au-metallized TiO2 catalysts were synthesized and characterized in order to compare their performance in two different catalytic environments: the phenol degradation that occurs during the liquid phase and in the CO oxidation phase, which proceeds the gas phase. The obtained materials were analyzed by different techniques such as XRF, SBET, XRD, TEM, XPS, and UV-Vis DRS. Although the metallization was not totally efficient in all cases, the amount of noble metal loaded depended strongly on the deposition time. Furthermore, the differences in the amount of loaded gold were important factors influencing the physicochemical properties of the catalysts, and consequently, their performances in the studied reactors. The addition of gold represented a considerable increase in the phenol conversion when compared with that of the TiO2, despite the small amount of noble metal loaded. However, this was not the case in the CO oxidation reaction. Beyond the differences in the phase where the reaction occurred, the loss of catalytic activity during the CO oxidation reaction was directly related to the sintering of the gold nanoparticles.

scholarly journals Density functional study on the CO oxidation reaction mechanism on MnN2-doped graphene

RSC Advances ◽  
2020 ◽  
Vol 10 (46) ◽  
pp. 27856-27863
Author(s):  
Mingming Luo ◽  
Zhao Liang ◽  
Chao Liu ◽  
Xiaopeng Qi ◽  
Mingwei Chen ◽  
...  
Keyword(s):  
Reaction Mechanism ◽  
Co Oxidation ◽  
Oxidation Reaction ◽  
Density Functional ◽  
Functional Study ◽  
Density Functional Study ◽  
Co Oxidation Reaction ◽  
Doped Graphene ◽  
First Time

The various COOR mechanisms on MnN2-doped graphene (MnN2C2: MnN2C2-hex, MnN2C2-opp, MnN2C2-pen) were investigated for the first time.

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

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