Characteristics of vanadia–titania aerogel catalysts for oxidative destruction of 1,2-dichlorobenzene

Catalytic Applications of Aerogels

“…Aerogel is a highly porous organic or inorganic material that consists of 3-dimensional polymeric networks with 10-30 nm of primary particles, revealing unique properties such as a high specific surface area, a pronounced mesoporosity [1,2], uniform-sized nanoparticles [3], a high dispersion in composites [4] and a high thermal stability [5]. These intrinsic characteristics have attracted interest in the use of aerogels as thermal insulators, catalysts, adsorbents, dielectrics, and sensors according to the physical and chemical properties of constituent species.…”

“…Since 1994, we have synthesized metal oxide aerogels of alumina, chromia, iron oxide, magnesia, niobia, tin oxide, titania, ruthenium oxide, and carbon [1,2,5,[8][9][10][11][12]. Various unitary, binary and/or ternary composite aerogels have been employed as catalysts for a wide range of heterogeneous catalytic reactions including hydrogenation, selective oxidation, complete oxidation, ammoxidation, oxidative coupling, photodecomposition, and reforming [3,4,9,[13][14][15][16][17][18][19]. Synthetic modification was conducted by controlling the rates of hydrolysis and polymerization in order for composite aerogels to have appropriate homogeneity.…”

Low temperature catalytic combustion of 1,2-dichlorobenzene over CeO2–TiO2 mixed oxide catalysts

“…Hence, stringent environmental regulations are in place in several countries limiting PCDD/PCDF emissions [2,3]. Therefore, various control methods were designed and used [2,4], of which, catalytic oxidation is the preferred approach [3, 5, 6]. Its major advantage is that oxidation can be effectively performed at temperatures between 250 and 550 o C and very dilute pollutants which cannot be thermally combusted without additional fuel can be treated effectively by this way [7].…”

Behaviors of V-doped Titanium Mixed Oxides in the Catalytic Dehydrogenation of Ethylbenzene

“…All above results indicate that the rutile favors the increasing of catalyst particles and decreasing of the surface area and pore volume. [18,21]. In Fig.…”

“…loading exceeded 6 mol%, which was probably caused by incorporation of vanadium oxide into the TiO 2 [19,20]. There are reports that additives, such as vanadium oxide, can be inserted into a support and induce a metal oxide to the thermodynamically more stable form and consequently have a significant effect on the phase transformation [21]. Djerad et al [22] observed that vanadium oxide enhanced the phase transformation of TiO 2 from anatase to rutile.…”