Oxalate route for promoting activity of manganese oxide catalysts in total VOCs’ oxidation: effect of calcination temperature and preparation method

2014 ◽  
Vol 2 (8) ◽  
pp. 2544-2554 ◽  
Author(s):  
Wenxiang Tang ◽  
Xiaofeng Wu ◽  
Dongyan Li ◽  
Zhen Wang ◽  
Gang Liu ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Manganese Oxide ◽  
Calcination Temperature ◽  
Manganese Oxides ◽  
Preparation Method ◽  
Oxide Catalysts ◽  
Manganese Oxide Catalysts ◽  
Oxalate Route ◽  
Oxidation Effect

Oxalate route was applied to synthesize mesoporous manganese oxides and their catalytic activity for VOCs’ oxidation was significantly promoted.

Highly active water oxidation on nanostructured biomimetic calcium manganese oxide catalysts

2016 ◽  
Vol 4 (17) ◽  
pp. 6585-6594 ◽  
Author(s):  
Feng Rong ◽  
Jiao Zhao ◽  
Zheng Chen ◽  
Yuxing Xu ◽  
Yaopeng Zhao ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Manganese Oxide ◽  
Oxidation State ◽  
Water Oxidation ◽  
Oxide Catalysts ◽  
Structural Distortion ◽  
Manganese Oxide Catalysts ◽  
Highly Active

Nanostructured biomimetic birnessite CaxMnOy oxides with an intermediate Mn oxidation state and proper structural distortion show improved catalytic activity for the WOR.

scholarly journals Structure-Activity Relationship of Manganese Oxide Catalysts for the Catalytic Oxidation of (chloro)-VOCs

Catalysts ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 726 ◽  
Author(s):  
Jian Wang ◽  
Hainan Zhao ◽  
Jianfei Song ◽  
Tingyu Zhu ◽  
Wenqing Xu
Keyword(s):  
Specific Surface ◽  
Manganese Oxide ◽  
Surface Area ◽  
Calcination Temperature ◽  
Specific Surface Area ◽  
Oxide Catalysts ◽  
Precipitation Method ◽  
Catalytic Oxidations ◽  
Calcination Temperatures ◽  
Manganese Oxide Catalysts

Manganese oxide catalysts, including γ-MnO2, Mn2O3 and Mn3O4, were synthesized by a precipitation method using different precipitants and calcination temperatures. The catalytic oxidations of benzene and 1,2-dichloroethane (1,2-DCE) were then carried out. The effects of the calcination temperature on the catalyst morphology and activity were investigated. It was found that the specific surface area and reducibility of the catalysts decreased with the increase in the calcination temperature, and both the γ-MnO2 and Mn3O4 were converted to Mn2O3. These catalysts showed good activity and selectivity for the benzene and 1,2-DCE oxidation. The γ-MnO2 exhibited the highest activity, followed by the Mn2O3 and Mn3O4. The high activity could be associated with the large specific surface area, abundant surface oxygen species and excellent low-temperature reducibility. Additionally, the catalysts were inevitably chlorinated during the 1,2-DCE oxidation, and a decrease in the catalytic activity was observed. It suggested that a higher reaction temperature could facilitate the removal of the chlorine species. However, the reduction of the catalytic reaction interface was irreversible.

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
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