Catalytic conversion of 1,2-dichlorobenzene using V2O5/TiO2 catalysts by a thermal decomposition process

Chin, Sungmin; Jurng, Jongsoo; Lee, Jae-Heon; Moon, Seung-Jae

doi:10.1016/j.chemosphere.2009.02.015

Cited by 37 publications

(19 citation statements)

References 16 publications

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“…Consequently, redox properties TiO 2 modified by the presence of V 2 O 5 lead to an electronic interaction between this support and V 2 O 5 species [169]. V 2 O 5 loading is a key point for the activity, and it has been suggested that a single redox surface site participates in the kinetically significant steps, with the formation of crystalline V 2 O 5 being detrimental to oxidation activity [168, 172]. …”

Section: Tio2: As Support In Heterogeneous Catalysismentioning

confidence: 99%

Titanium Dioxide as a Catalyst Support in Heterogeneous Catalysis

Bagheri

Julkapli

Hamid

2014

The Scientific World Journal

334

176

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The lack of stability is a challenge for most heterogeneous catalysts. During operations, the agglomeration of particles may block the active sites of the catalyst, which is believed to contribute to its instability. Recently, titanium oxide (TiO 2 ) was introduced as an alternative support material for heterogeneous catalyst due to the effect of its high surface area stabilizing the catalysts in its mesoporous structure. TiO 2 supported metal catalysts have attracted interest due to TiO 2 nanoparticles high activity for various reduction and oxidation reactions at low pressures and temperatures. Furthermore, TiO 2 was found to be a good metal oxide catalyst support due to the strong metal support interaction, chemical stability, and acid-base property. The aforementioned properties make heterogeneous TiO 2 supported catalysts show a high potential in photocatalyst-related applications, electrodes for wet solar cells, synthesis of fine chemicals, and others. This review focuses on TiO 2 as a support material for heterogeneous catalysts and its potential applications.

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Section: Tio2: As Support In Heterogeneous Catalysismentioning

confidence: 99%

Titanium Dioxide as a Catalyst Support in Heterogeneous Catalysis

Bagheri

Julkapli

Hamid

2014

The Scientific World Journal

334

176

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“…The CV set-up, similar to the CVD set-up shown schematically in Figure 5 and also reported elsewhere [66][67][68], was used to produce the MnO x nanoparticles. It is a simple experimental system consisting of the following three parts; a precursor evaporator, a hotwall reactor, and a particle trap (collector).…”

Section: Synthesis Of Manganese Oxidesmentioning

confidence: 99%

Chemical Vapor Synthesis and Characterization of Manganese Oxides

Chin

Park

et al. 2011

Chemical Vapor Deposition

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Manganese oxide nanoparticles are synthesized by a chemical vapor process using manganese(0) carbonyl as the precursor. The synthesis temperature of the materials is varied from 500 to 1500 8C at 200 8C intervals. These nanomaterials are characterized by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), Brunauer-Emmett-Teller (BET) surface area, and X-ray photoelectron spectroscopy (XPS). XRD shows that the manganese oxide nanoparticles synthesized at 500, 700 -1100, 1300, and 1500 8C are mainly MnO 2 , Mn 2 O 3 , Mn 2 O 3 /Mn 3 O 4 , and Mn 3 O 4 , respectively. The TEM and BET results also confirm that the particle size is on the nanometer scale with a large specific surface area (SSA) of 81 -215 m 2 g À1 . XPS indicates the catalysts to have manganese oxidation states of (2þ), (3þ), or (4þ) depending on the synthesis temperature.

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“…Metal oxides, or supported noble metals, have received great attentions for the destruction of POPs [5,6]. Generally, three main catalyst types: TiO 2 -based V 2 O 5 /WO 3 [7][8][9], noble metals (Pt, Pd) supported on various oxides [10] and zeolites [11], have been used for the catalytic oxidation of chlorinated compounds. Of these, V 2 O 5 /TiO 2 catalysts, which are frequently employed for the reduction of NO x , are known to have high catalytic activities for the oxidation of chlorinated organic pollutants [12,13].…”

Section: Introductionmentioning

confidence: 99%

“…Generally, three main catalyst types: TiO 2 -based V 2 O 5 /WO 3 [7][8][9], noble metals (Pt, Pd) supported on various oxides [10] and zeolites [11], have been used for the catalytic oxidation of chlorinated compounds. Of these, V 2 O 5 /TiO 2 catalysts, which are frequently employed for the reduction of NO x , are known to have high catalytic activities for the oxidation of chlorinated organic pollutants [12,13]. The catalytic activity or selectivity of the vanadium/titania system strongly depends on the preparation method and conditions, such as crystallographic form of titania, the vanadium loading (quantity and dispersion) and calcinations temperature.…”

Section: Introductionmentioning

confidence: 99%