Effects of Light on Catalytic Activities and Lifetime of Plasmonic Au Catalysts in the CO Oxidation Reaction

ACS Catalysis ◽  
2018 ◽  
Vol 9 (1) ◽  
pp. 578-586 ◽  
Author(s):  
Peter Novello ◽  
Chakrapani V. Varanasi ◽  
Jie Liu
Keyword(s):  
Co Oxidation ◽  
Oxidation Reaction ◽  
Catalytic Activities ◽  
Co Oxidation Reaction

Understanding the facet-dependent catalytic performance of hematite microcrystals in a CO oxidation reaction

2018 ◽  
Vol 5 (9) ◽  
pp. 2332-2339 ◽  
Author(s):  
Liming Sun ◽  
Wenwen Zhan ◽  
Yan-An Li ◽  
Fan Wang ◽  
Xueliang Zhang ◽  
...  
Keyword(s):  
Dft Calculations ◽  
Co Oxidation ◽  
Surface Structure ◽  
Oxidation Reaction ◽  
Catalytic Performance ◽  
Experimental Results ◽  
Catalytic Activities ◽  
Co Oxidation Reaction ◽  
Unique Surface

α-Fe2O3 microcrystals with uniform plate, cube and rod morphologies have been synthesized. DFT calculations and experimental results indicated that the Fe2O3 nanorods showed an obvious improvement of CO catalytic activities due to their unique surface structure.

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.

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