Characterisation of Mg/Al hydrotalcite with interlayer palladium complex for catalytic oxidation of toluene

Carpentier, Jean‐François; Lamonier, Jean‐François; Siffert, Stéphane; Zhilinskaya, E. A.; Aboukaı̈s, Antoine

doi:10.1016/s0926-860x(02)00201-6

Cited by 109 publications

(53 citation statements)

References 45 publications

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“…The wide range of possible cations and anions that can be incorporated in the structure gives rise to a large number of catalytic materials [59,60]. Mixed oxides have been shown to be very active and selective in the decomposition of NOx [61] or in total oxidation of VOCs [62][63][64]. In different redox reaction (e.g.…”

Section: Vocs Remediation In Exhaust Fumes Of Industrial Plantsmentioning

confidence: 99%

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Characteristics, Preparation Routes and Metallurgical Applications of LDHs: An Overview

Richetta¹

2017

J Material Sci Eng

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The peculiar properties of layered Double Hydroxides (LDH) have progressively drawn the attention of the scientific community. The main characteristic of LDH is the ability to capture anionic species (organic and inorganic) to build different composites. This is made possible by the sandwich structure of the LDH, similar to the brucite architecture, made up of positive charged lamellas interspersed by anions. Several distant fields, ranging from medicine to physics and engineering, exhibit interest in LDH applications. To satisfy all those requirements, energy was spent to sculpt LDHs physical and chemical properties and for designing layered double hydroxides "ad hoc" for different needs and employments. Notably, among the many applications, those related to metallurgical processes and products are of particular interest. This paper presents the characteristics, the main preparation routes and reviews the applications of LDH to metallurgy with some examples taken from the experimental research of the author.

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Section: Vocs Remediation In Exhaust Fumes Of Industrial Plantsmentioning

confidence: 99%

“…In different redox reaction (e.g. : selective oxidation of hydrocarbons or the total oxidation of VOCs [65]) mixed oxides, obtained after the calcination phase, have been able to act as catalysts [59,62], or as catalyst support [63][64][65].…”

Section: Vocs Remediation In Exhaust Fumes Of Industrial Plantsmentioning

confidence: 99%

Characteristics, Preparation Routes and Metallurgical Applications of LDHs: An Overview

Richetta¹

2017

J Material Sci Eng

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“…For example, mixed oxides have been shown to be very active and selective in the decomposition of nitrogen oxides [16] or in the total oxidation of Volatile Organic Compounds [13,14]. Also, mixed oxides obtained after calcination were used equally as catalysts [13,17] or as catalytic support [18][19][20] in redox reactions such as the selective oxidation of hydrocarbons or the total oxidation of VOCs [21,22].…”

Section: Introductionmentioning

confidence: 99%

Co-Al Mixed Oxides Prepared via LDH Route Using Microwaves or Ultrasound: Application for Catalytic Toluene Total Oxidation

et al. 2015

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Co6Al2HT hydrotalcite-like compounds were synthesized by three different methods: co-precipitation, microwaves-assisted and ultrasound-assisted methods. The mixed oxides obtained after calcination were studied by several techniques: XRD, TEM, H2-TPR and XPS. They were also tested as catalysts in the reaction of total oxidation of toluene. The physico-chemical studies revealed a modification of the structural characteristics (surface area, morphology) as well as of the reducibility of the formed mixed oxides. The solid prepared by microwaves-assisted synthesis was the most active. Furthermore, a relationship between the ratio of Co 2+ on the surface, the reducibility of the Co-Al mixed oxide and the T50 in toluene oxidation was demonstrated. This suggests a Mars Van Krevelen mechanism for toluene total oxidation on these catalysts.

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“…Catalytic oxidation of toluene can be carried out at temperatures 200-600 °C lower than that for thermal oxidation and has high selectivity for the formation of harmless reaction products such as H2O and CO2 [4]. Supported noble metal (Pt, Pd, Rh) materials have been intensively examined in VOC catalytic combustion, but their limited availability and high price have encouraged their replacement by other active phases [5][6][7]. Transition metal oxides have been found to be very active and present advantages over noble metals associated with their lower cost, higher thermal stability and greater resistance to poisoning [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Removal of Toluene over NaX Zeolite Exchanged with Cu2+

et al. 2015

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Toluene is a major air pollutant emitted from painting and metal coating processes and might have some health effects. Adsorption and catalytic complete oxidation are promising ways to retain or convert toluene into harmless products. The present work aims to develop a bifunctional material which can be used as an adsorbent and catalyst for low-temperature toluene removal. Copper zeolites were obtained by exchanging the sodium in the parent NaX zeolite with copper from aqueous solutions of Cu(NO3)2•2.5H2O. Several characterization techniques, H2-TPR, XPS, XRD and N2 physisorption, were used in order to evaluate the redox, surface, structural and textural properties of the materials, respectively. The various materials were tested in adsorption and catalytic processes. The sample with low copper content (1 wt. %) exhibited promising features in terms of toluene adsorption capacity and total oxidation. The results can be correlated to the presence of micropores and well-dispersed CuO species. OPEN ACCESSCatalysts 2015, 5 1480

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Characterisation of Mg/Al hydrotalcite with interlayer palladium complex for catalytic oxidation of toluene

Cited by 109 publications

References 45 publications

Characteristics, Preparation Routes and Metallurgical Applications of LDHs: An Overview

Characteristics, Preparation Routes and Metallurgical Applications of LDHs: An Overview

Co-Al Mixed Oxides Prepared via LDH Route Using Microwaves or Ultrasound: Application for Catalytic Toluene Total Oxidation

Removal of Toluene over NaX Zeolite Exchanged with Cu2+

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