Novel V2O5-CeO2-TiO2-SO42− nanostructured aerogel catalyst for the low temperature selective catalytic reduction of NO by NH3 in excess O2

Arfaoui, Jihène; Ghorbel, Abdelhamid; Petitto, Carolina; Delahay, Gérard

doi:10.1016/j.apcatb.2017.10.059

Cited by 108 publications

(56 citation statements)

References 89 publications

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“…Thereby, the part of sulfate species was broken over CF‐650 while no sulfate species existed over CF‐750 due to the high calcination temperature. Arfaoui etal proved that sulfate groups could form a new type of strong acid sites on the surface of V 2 O 5 ‐CeO 2 ‐TiO 2 ‐SO 4 2− catalyst and consequently increased the SCR performance. Furthermore, Zhang etal demonstrated that the generation of sulfate species could contribute to the formation of acid sites, resulting in the improvement of catalytic activity.…”

Section: Resultsmentioning

confidence: 99%

“…Furthermore, Ce-Fe-O x possessed a weight loss at 650-800 C, corresponding to the decomposition of Ce 2 (SO 4 ) 3 , which implied that the Ce 2 (SO 4 ) 3 species was decomposed when the calcination temperature was above 650 C. [50] Thereby, the part of sulfate species was broken over CF-650 while no sulfate species existed over CF-750 due to the high calcination temperature. Arfaoui etal [51] proved that sulfate groups could form a new type of strong acid sites on the surface of V 2 O 5 -CeO 2 -TiO 2 -SO 4 2− catalyst and consequently increased the SCR performance. Furthermore, Zhang etal [52] demonstrated that the generation of sulfate species could contribute to the formation of acid sites, resulting in the improvement of catalytic activity.…”

Section: Tg Analysismentioning

confidence: 99%

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Effectively promoted catalytic activity by adjusting calcination temperature of Ce‐Fe‐O_x catalyst for NH₃‐SCR

Song

Xing

Zhang

et al. 2019

Applied Organom Chemis

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A series of Ce‐Fe‐Ox catalysts prepared by the different calcination temperatures (marked as CF‐X, where X represented calcination temperature) were used to the selectivity catalytic reduction of NOx by NH3. The results explained the relationship between calcination temperature and the sulfate species over Ce‐Fe‐Ox, and then investigated the surface acidity and catalytic performance. The large amounts of sulfate species were formed over CF‐450 and CF‐550 while it was decomposed with further the increasing of calcination temperature, which resulted in the loss of surface acidity, causing a decrease in the catalytic activity over Ce‐Fe‐Ox. Thereby, the CF‐450 catalyst showed the best catalytic activity and over 90% NOx conversion was obtained at 244–450 °C. Besides, the favored pore structure, more Fe3+ active species, higher Ce3+ concentration and the abundance of chemical adsorbed oxygen species, as well as the surface acid sites, would together contribute to the excellent catalytic activity of CF‐450 catalyst.

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Section: Resultsmentioning

confidence: 99%

Section: Tg Analysismentioning

confidence: 99%

Effectively promoted catalytic activity by adjusting calcination temperature of Ce‐Fe‐O_x catalyst for NH₃‐SCR

Song

Xing

Zhang

et al. 2019

Applied Organom Chemis

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“…ZrO2 and Fe-ZrO2 aerogel supports were prepared by the sol-gel method using a similar procedure to that reported in our previous work for TiO2 [17]. In fact, the requisite quantities of Zirconium (IV) butoxide (Zr(OC4H9)4, Sigmaaldrich, Purity (p) = 80 %) and Ethyl acetoacetate (C6H10O3, Fluka, Purity (p) > 99.5% Sigma-aldrich, p = 80%) were dissolved in anhydrous ethanol (C2H6O, Aldrich, p = 99.8%) and mixed under stirring at room temperature.…”

Section: Experimental Catalysts Preparationmentioning

confidence: 99%

Ag/ZrO2 and Ag/Fe–ZrO2 catalysts for the low temperature total oxidation of toluene in the presence of water vapor

et al. 2020

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HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

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“…Even non-medical applications have benefited from aerogels. Many scientists have joined the race to develop and fabricate such materials to serve humanity in many applications, including insulation 5,6 , absorption 7,8 , packaging 9,10 , supercapacitors 11,12 , catalysts 13,14 , energy storage 15,16 , filtration 17,18 , conduction 19,20 , sensing 21,22 , cleaning, and adsorption of wastes 23,24 . Figure 1 shows the summary of different non-medical applications of aerogels.…”

Section: Introductionmentioning

confidence: 99%

Antibacterial cellulose-based aerogels for wound healing application: A review

et al. 2020

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Aerogels have been steadily developed since its first invention to become one of the most promising materials for various medical and non-medical applications. It has been prepared from organic and inorganic materials, in pure forms or composites. Cellulose-based aerogels are considered one of the promising materials in biomedical applications due to their availability, degradability, biocompatibility and non-cytotoxicity compared to conventional silica or metal-based aerogels. The unique properties of such materials permit their utilization in drug delivery, biosensing, tissue engineering scaffolds, and wound dressing. This review presents a summary of aerogel development as well as the properties and applications of aerogels. Herein, we further discuss the recent works pertaining to utilization of cellulose-based aerogels for antibacterial delivery.

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Novel V2O5-CeO2-TiO2-SO42− nanostructured aerogel catalyst for the low temperature selective catalytic reduction of NO by NH3 in excess O2

Cited by 108 publications

References 89 publications

Effectively promoted catalytic activity by adjusting calcination temperature of Ce‐Fe‐O_x catalyst for NH₃‐SCR

Effectively promoted catalytic activity by adjusting calcination temperature of Ce‐Fe‐O_x catalyst for NH₃‐SCR

Ag/ZrO2 and Ag/Fe–ZrO2 catalysts for the low temperature total oxidation of toluene in the presence of water vapor

Antibacterial cellulose-based aerogels for wound healing application: A review

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Novel V2O5-CeO2-TiO2-SO42− nanostructured aerogel catalyst for the low temperature selective catalytic reduction of NO by NH3 in excess O2

Cited by 108 publications

References 89 publications

Effectively promoted catalytic activity by adjusting calcination temperature of Ce‐Fe‐Ox catalyst for NH3‐SCR

Effectively promoted catalytic activity by adjusting calcination temperature of Ce‐Fe‐Ox catalyst for NH3‐SCR

Ag/ZrO2 and Ag/Fe–ZrO2 catalysts for the low temperature total oxidation of toluene in the presence of water vapor

Antibacterial cellulose-based aerogels for wound healing application: A review

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Effectively promoted catalytic activity by adjusting calcination temperature of Ce‐Fe‐O_x catalyst for NH₃‐SCR

Effectively promoted catalytic activity by adjusting calcination temperature of Ce‐Fe‐O_x catalyst for NH₃‐SCR