Thermal Decomposition of Dimethyl Methylphosphonate over Manganese Oxide Catalysts

2001 ◽  
Vol 198 (1) ◽  
pp. 66-76 ◽  
Author(s):  
Scott R Segal ◽  
Lixin Cao ◽  
Steven L Suib ◽  
Xia Tang ◽  
Sunita Satyapal
Keyword(s):  
Thermal Decomposition ◽  
Manganese Oxide ◽  
Oxide Catalysts ◽  
Dimethyl Methylphosphonate ◽  
Manganese Oxide Catalysts

Manganese oxide catalysts for NOx reduction with NH3 at low temperatures

2007 ◽  
Vol 327 (2) ◽  
pp. 261-269 ◽  
Author(s):  
Min Kang ◽  
Eun Duck Park ◽  
Ji Man Kim ◽  
Jae Eui Yie
Keyword(s):  
Manganese Oxide ◽  
Low Temperatures ◽  
Nox Reduction ◽  
Oxide Catalysts ◽  
Manganese Oxide Catalysts

scholarly journals Catalytic Abatement of Volatile Organic Compounds and Soot over Manganese Oxide Catalysts

Materials ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 4534
Author(s):  
Miguel Jose Marin Figueredo ◽  
Clarissa Cocuzza ◽  
Samir Bensaid ◽  
Debora Fino ◽  
Marco Piumetti ◽  
...  
Keyword(s):  
Volatile Organic Compounds ◽  
Low Temperature ◽  
Manganese Oxide ◽  
Organic Compounds ◽  
Catalytic Performance ◽  
Oxide Catalysts ◽  
X Ray ◽  
Manganese Oxide Catalysts ◽  
Volatile Organic ◽  
Temperature Programmed

A set of manganese oxide catalysts was synthesized via two preparation techniques: solution combustion synthesis (Mn3O4/Mn2O3-SCS and Mn2O3-SCS) and sol-gel synthesis (Mn2O3-SG550 and Mn2O3-SG650). The physicochemical properties of the catalysts were studied by means of N2-physisorption at −196 °C, X-ray powder diffraction, H2 temperature-programmed reduction (H2-TPR), soot-TPR, X-ray photoelectron spectroscopy (XPS) and field-emission scanning electron microscopy (FESEM). The high catalytic performance of the catalysts was verified in the oxidation of Volatile Organic Compounds (VOC) probe molecules (ethene and propene) and carbon soot in a temperature-programmed oxidation setup. The best catalytic performances in soot abatement were observed for the Mn2O3-SG550 and the Mn3O4/Mn2O3-SCS catalysts. The catalytic activity in VOC total oxidation was effectively correlated to the enhanced low-temperature reducibility of the catalysts and the abundant surface Oα-species. Likewise, low-temperature oxidation of soot in tight contact occurred over the Mn2O3-SG550 catalyst and was attributed to high amounts of surface Oα-species and better surface reducibility. For the soot oxidation in loose contact, the improved catalytic performance of the Mn3O4/Mn2O3-SCS catalyst was attributed to the beneficial effects of both the morphological structure that—like a filter—enhanced the capture of soot particles and to a probable high amount of surface acid-sites, which is characteristic of Mn3O4 catalysts.

Total oxidation of naphthalene using bulk manganese oxide catalysts

2013 ◽  
Vol 450 ◽  
pp. 169-177 ◽  
Author(s):  
Tomas Garcia ◽  
David Sellick ◽  
Francisco Varela ◽  
Isabel Vázquez ◽  
Ana Dejoz ◽  
...  
Keyword(s):  
Manganese Oxide ◽  
Oxide Catalysts ◽  
Total Oxidation ◽  
Manganese Oxide Catalysts
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