Synergistic Coupling of the Redox Properties of Supports and Cobalt Oxide Co3O4 for the Complete Oxidation of Volatile Organic Compounds

2010 ◽  
Vol 137 (3-4) ◽  
pp. 141-149 ◽  
Author(s):  
Frédéric Wyrwalski ◽  
Jean-Marc Giraudon ◽  
Jean-François Lamonier
Catalysts ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 838
Author(s):  
Gaurav Pande ◽  
Subramanian Selvakumar ◽  
Carmen Ciotonea ◽  
Jean-Marc Giraudon ◽  
Jean-François Lamonier ◽  
...  

Red mud waste from the aluminium industry was modified by leaching using hydrochloric acid or oxalic acid with additives, followed by precipitation or evaporation. The prepared catalysts were characterized in detail and tested for toluene total oxidation. The samples prepared by precipitation of the leachate by adding a base gave a much better performance in catalytic oxidation than the ones prepared by just evaporating the leachate. These improved performances can be correlated to the enhanced textural and redox properties of the catalysts due to the better dispersion and higher enrichment of Fe oxides at their surface. The best performing catalyst had a light-off temperature of around 310 °C and complete oxidation took place at around 380 °C.


Nanoscale ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 4794-4802 ◽  
Author(s):  
Yangyu Zhang ◽  
Zhenni Tan ◽  
Xiuyun Wang ◽  
Yingying Zhan ◽  
Yihong Xiao ◽  
...  

The design of heterogeneous catalysts of high efficiency for complete oxidation of volatile organic compounds (VOCs) is a challenge.


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