Generation and reactivity of putative support systems, Ce-Al neutral binary oxide nanoclusters: CO oxidation and C–H bond activation

2013 ◽  
Vol 139 (19) ◽  
pp. 194313 ◽  
Author(s):  
Zhe-Chen Wang ◽  
Shi Yin ◽  
Elliot R. Bernstein
Keyword(s):  
Co Oxidation ◽  
Bond Activation ◽  
Support Systems ◽  
Binary Oxide

scholarly journals CO Oxidation Efficiency and Hysteresis Behavior over Mesoporous Pd/SiO2 Catalyst

Catalysts ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 131 ◽  
Author(s):  
Rola Mohammad Al Soubaihi ◽  
Khaled Mohammad Saoud ◽  
Myo Tay Zar Myint ◽  
Mats A. Göthelid ◽  
Joydeep Dutta
Keyword(s):  
Carbon Monoxide ◽  
Catalytic Activity ◽  
Co Oxidation ◽  
Active Sites ◽  
Bond Activation ◽  
Dissociative Adsorption ◽  
High Catalytic Activity ◽  
Good Catalytic Activity ◽  
Pretreatment Conditions ◽  
Oxidation Efficiency

Carbon monoxide (CO) oxidation is considered an important reaction in heterogeneous industrial catalysis and has been extensively studied. Pd supported on SiO2 aerogel catalysts exhibit good catalytic activity toward this reaction owing to their CO bond activation capability and thermal stability. Pd/SiO2 catalysts were investigated using carbon monoxide (CO) oxidation as a model reaction. The catalyst becomes active, and the conversion increases after the temperature reaches the ignition temperature (Tig). A normal hysteresis in carbon monoxide (CO) oxidation has been observed, where the catalysts continue to exhibit high catalytic activity (CO conversion remains at 100%) during the extinction even at temperatures lower than Tig. The catalyst was characterized using BET, TEM, XPS, TGA-DSC, and FTIR. In this work, the influence of pretreatment conditions and stability of the active sites on the catalytic activity and hysteresis is presented. The CO oxidation on the Pd/SiO2 catalyst has been attributed to the dissociative adsorption of molecular oxygen and the activation of the C-O bond, followed by diffusion of adsorbates at Tig to form CO2. Whereas, the hysteresis has been explained by the enhanced stability of the active site caused by thermal effects, pretreatment conditions, Pd-SiO2 support interaction, and PdO formation and decomposition.

scholarly journals Synthesis and CO Oxidation Activity of 1D Mixed Binary Oxide CeO2-LaO x Supported Gold Catalysts

2017 ◽  
Vol 12 (1) ◽  
Author(s):  
Huanhuan Yu ◽  
Siyuan Zhong ◽  
Baolin Zhu ◽  
Weiping Huang ◽  
Shoumin Zhang
Keyword(s):  
Co Oxidation ◽  
Gold Catalysts ◽  
Binary Oxide ◽  
Oxidation Activity ◽  
Supported Gold Catalysts ◽  
Supported Gold

Selectivity of chemisorbed oxygen in C–H bond activation and CO oxidation and kinetic consequences for CH4–O2 catalysis on Pt and Rh clusters

2011 ◽  
Vol 283 (1) ◽  
pp. 10-24 ◽  
Author(s):  
Ya-Huei (Cathy) Chin ◽  
Corneliu Buda ◽  
Matthew Neurock ◽  
Enrique Iglesia
Keyword(s):  
Co Oxidation ◽  
Bond Activation ◽  
Chemisorbed Oxygen

Catalytic CO Oxidation on Unreconstructed Cu(110) by Reactive As-Adsorbed Oxygen Atoms below 230 K

1996 ◽  
Vol 100 (3) ◽  
pp. 1048-1054 ◽  
Author(s):  
Tsuyoshi Sueyoshi ◽  
Takehiko Sasaki ◽  
Yasuhiro Iwasawa
Keyword(s):  
Co Oxidation ◽  
Adsorbed Oxygen ◽  
Catalytic Co Oxidation ◽  
Oxygen Atoms
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