Low-temperature catalytic oxidation of toluene over mesoporous MnO –CeO2/TiO2 prepared by sol–gel method

Yu, Danqing; Liu, Yue; Wu, Zhongbiao

doi:10.1016/j.catcom.2010.02.016

Cited by 116 publications

(46 citation statements)

References 24 publications

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“…Ceria addition strongly increases the surface area, which goes from <10 m 2 ·g -1 in pure TiO 2 to 100 m 2 ·g -1 for pure CeO 2 [18,21,25]. The surface area is high enough to accommodate the desired amount of platinum nanoparticles.…”

Section: Increase Of H 2 Concentration and Addition Of H 2 O And Comentioning

confidence: 94%

“…When ceria is added, the anatase characteristic peaks decrease with increasing amount of cerium. They also broaden and slightly shift towards larger angles, which points to the formation of a solid solution [21].…”

Section: Increase Of H 2 Concentration and Addition Of H 2 O And Comentioning

confidence: 99%

“…or Cecations) [20]. The second peak at higher binding energies is ascribed to mobile oxygen (O1s B: hydroxyl groups, oxygen close to the vacancies) [21,22]. The binding energy shifts to lower values when cerium is added.…”

Section: X-ray Photoelectron Spectroscopymentioning

confidence: 99%

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Highly dispersed Pt+ on Ti Ce(1−)O2 as an active phase in preferential oxidation of CO

Rico-Francés

Jardim

Wezendonk

et al. 2016

Applied Catalysis B: Environmental

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Section: Increase Of H 2 Concentration and Addition Of H 2 O And Comentioning

confidence: 94%

Section: Increase Of H 2 Concentration and Addition Of H 2 O And Comentioning

confidence: 99%

See 1 more Smart Citation

Highly dispersed Pt+ on Ti Ce(1−)O2 as an active phase in preferential oxidation of CO

Rico-Francés

Jardim

Wezendonk

et al. 2016

Applied Catalysis B: Environmental

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“…In general, the catalysts typically used for this application are supported noble metals (Pt, Pd, Rh, Au, etc.,) and metal oxides (CeO 2 , CuO, MnO x , CoO x , etc.,) [5][6][7][8][9][10]. Particularly, ceria has been demonstrated to be a promising catalyst in the total oxidation of VOCs, either pure or in combination with noble metals or other metal oxides [11][12][13][14][15]. The high activity of ceria in oxidation reactions is attributed to its high oxygen storage capacity (OSC) and its exceptional redox properties [16].…”

Section: Introductionmentioning

confidence: 99%

Effect of the metal precursor on the properties of Pt/CeO2/C catalysts for the total oxidation of ethanol

et al. 2015

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. Toluene hydrogenation has been used to obtain an estimation of the platinum dispersion on the investigated catalysts. On the other hand, their catalytic behavior has been evaluated in the total oxidation of ethanol, selected as a VOCs probe molecule. A much higher catalytic activity and selectivity to CO2 was achieved with chlorinated catalysts. This behavior has been correlated with a high platinum dispersion and a strong metal-CeO2 interaction in these catalysts which promotes their redox properties. This is a previous version of the article published in Catalysis Today. 2015Today. , 249: 109-116. doi:10.1016Today. /j.cattod.2014 Highlights -Highly efficient catalysts for the complete oxidation of ethanol have been developed.-The use of CeO 2 as promoter is optimized by dispersing it over the activated carbon surface.-Impact of the platinum precursor (chlorinated or Cl-free) on the catalytic activity.-Pt/CeO 2 /C catalysts are more active than Pt/CeO 2 . K, ICP, XRD, H 2 -TPR and XPS). Toluene hydrogenation has been used to obtain an estimation of the platinum dispersion on the investigated catalysts. On the other hand, their catalytic behavior has been evaluated in the total oxidation of ethanol, selected as a VOCs probe molecule. A much higher catalytic activity and selectivity to CO 2 was achieved with chlorinated catalysts. This behavior has been correlated with a high platinum dispersion and a strong metal-CeO 2 interaction in these catalysts which promotes their redox properties.

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“…[9][10][11][12][13][14]. Among the catalysts based on metal oxides which are studied in the literature, cerium oxide is considered to be particularly suitable for total oxidation of VOCs, either pure or in combination with noble metals or other metal oxides [15][16][17][18][19]. The high activity of ceria in total oxidation reactions is ascribed to its high oxygen storage capacity (OSC) and its exceptional redox properties [20].…”

Section: Introductionmentioning

confidence: 99%

Platinum supported on highly-dispersed ceria on activated carbon for the total oxidation of VOCs

Abdelouahab-Reddam

Mail

Coloma

et al. 2015

Applied Catalysis A: General

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*Graphical Abstract (for review) Highlights-Pt-CeO 2 catalysts supported on activated carbon are active in the total oxidation of VOCs.-These catalysts have shown higher activity than platinum supported on bulk ceria.-The best catalyst contained only 10wt% ceria.-Pt-10Ce/C catalyst showed a high stability under both dry and humid conditions. AbstractCatalysts consisting in platinum supported on cerium oxide highly dispersed on wt.% ceria loading, likely due to an optimum synergistic interaction between highly dispersed cerium oxide and platinum particles. Pt-10Ce/C achieves total conversion of ethanol and toluene to CO 2 at 433 K and 453 K, respectively, and shows no deactivation during a test for 100 h. Under humid conditions (relative humidity, RH, of 40 and 80 %), the activity was only slightly influenced due to the hydrophobic character of the activated carbon support, which prevents the adsorption of water.

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Low-temperature catalytic oxidation of toluene over mesoporous MnO –CeO2/TiO2 prepared by sol–gel method

Cited by 116 publications

References 24 publications

Highly dispersed Pt+ on Ti Ce(1−)O2 as an active phase in preferential oxidation of CO

Highly dispersed Pt+ on Ti Ce(1−)O2 as an active phase in preferential oxidation of CO

Effect of the metal precursor on the properties of Pt/CeO2/C catalysts for the total oxidation of ethanol

Platinum supported on highly-dispersed ceria on activated carbon for the total oxidation of VOCs

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