Promotional effects of Ce on the activity of Mn Al oxide catalysts derived from hydrotalcites for low temperature benzene oxidation

2016 ◽  
Vol 87 ◽  
pp. 102-105 ◽  
Author(s):  
Shengpeng Mo ◽  
Shuangde Li ◽  
Jiaqi Li ◽  
Shengpan peng ◽  
Jiayuan Chen ◽  
...  
Keyword(s):  
Low Temperature ◽  
Oxide Catalysts ◽  
Benzene Oxidation ◽  
Al Oxide

Aqueous Benzene Oxidation in Low-Temperature Plasma of Pulsed Corona Discharge

2016 ◽  
Vol 19 (2) ◽  
Author(s):  
Iakov Kornev ◽  
Sergei Preis
Keyword(s):  
Low Temperature ◽  
Corona Discharge ◽  
Gas Phase ◽  
Pulse Repetition Frequency ◽  
Repetition Frequency ◽  
Pulse Repetition ◽  
Benzene Oxidation ◽  
Low Temperature Plasma ◽  
Temperature Plasma ◽  
Pulsed Corona

AbstractWastewaters polluted with non-biodegradable volatile organic compounds (VOCs), such as aromatic substances, present a growing problem meeting no adequately affordable technological response. Low-temperature plasma generated in the gas-phase pulsed corona discharge (PCD) presents competitive advanced oxidation technology in abatement of various classes of pollutants, although the process parameters, the pulse repetition frequency and the liquid spray rate, require optimization. The experimental research into aqueous benzene oxidation with PCD was undertaken to establish the impact of the parameters to the energy efficiency. The oxidation reaction was found under the experimental conditions to mostly proceed in the gas phase showing little influence of the pulse repetition frequency and the gas-liquid contact surface. Oxidation of benzene and, presumably, other volatile pollutants in the volume of PCD reactor compartment presents an effective strategy of aqueous VOCs abatement.

Microstructural comparison of calcined and uncalcined gold/iron-oxide catalysts for low-temperature CO oxidation

2002 ◽  
Vol 72 (1-2) ◽  
pp. 133-144 ◽  
Author(s):  
N.A Hodge ◽  
C.J Kiely ◽  
R Whyman ◽  
M.R.H Siddiqui ◽  
G.J Hutchings ◽  
...  
Keyword(s):  
Iron Oxide ◽  
Low Temperature ◽  
Co Oxidation ◽  
Oxide Catalysts ◽  
Low Temperature Co Oxidation

The preparation and catalytic behavior of copper–cerium oxide catalysts for low-temperature carbon monoxide oxidation

2005 ◽  
Vol 283 (1-2) ◽  
pp. 217-223 ◽  
Author(s):  
Xiu-Cheng Zheng ◽  
Shi-Hua Wu ◽  
Shu-Ping Wang ◽  
Shu-Rong Wang ◽  
Shou-Min Zhang ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Low Temperature ◽  
Cerium Oxide ◽  
Carbon Monoxide Oxidation ◽  
Oxide Catalysts ◽  
Catalytic Behavior

Fe and Mn mixed oxide catalysts supported on Sn-modified TiO2 for the selective catalytic reduction of NO with NH3 at low temperature

2022 ◽  
Author(s):  
Zhitao Han ◽  
Huan Du ◽  
Duo Xu ◽  
Yu Gao ◽  
Shaolong Yang ◽  
...  
Keyword(s):  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
Mixed Oxide ◽  
Catalytic Reduction ◽  
Oxide Catalysts ◽  
Reduction Of No ◽  
Sn Doping ◽  
Mixed Oxide Catalysts ◽  
Fe And Mn ◽  
Low Temperature Scr

FeMn/SnxTiO2 catalysts were synthesized by introducing Sn as an additive to modify TiO2 supports, and the Sn doping could improve the SO2 tolerance and low-temperature SCR activity significantly.

Coprecipitated Co–Al and Cu–Al oxide catalysts for toluene total oxidation

2011 ◽  
Vol 176 (1) ◽  
pp. 413-416 ◽  
Author(s):  
Anna Bialas ◽  
Paula Niebrzydowska ◽  
Barbara Dudek ◽  
Zofia Piwowarska ◽  
Lucjan Chmielarz ◽  
...  
Keyword(s):  
Oxide Catalysts ◽  
Total Oxidation ◽  
Toluene Total Oxidation ◽  
Al Oxide

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.

scholarly journals A review of Mn-containing oxide catalysts for low temperature selective catalytic reduction of NOx with NH3: reaction mechanism and catalyst deactivation

RSC Advances ◽  
2017 ◽  
Vol 7 (42) ◽  
pp. 26226-26242 ◽  
Author(s):  
Shengen Zhang ◽  
Bolin Zhang ◽  
Bo Liu ◽  
Shuailing Sun
Keyword(s):  
Reaction Mechanism ◽  
Low Temperature ◽  
Selective Catalytic Reduction ◽  
Catalyst Deactivation ◽  
Catalytic Reduction ◽  
Oxide Catalysts ◽  
Scr Catalysts ◽  
Reduction Of Nox

The reactions over Mn-containing selective catalytic reduction (SCR) catalysts.

Sign in / Sign up

Export Citation Format

Share Document