Transition metals supported on mesoporous ZrO2 for the catalytic control of indoor CO and PM emissions

Doggali, Pradeep; Waghmare, Sanghratna; Rayalu, Sadhana; Teraoka, Yasutake; Labhsetwar, Nitin

doi:10.1016/j.molcata.2011.07.010

Cited by 17 publications

(10 citation statements)

References 27 publications

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“…On LSF, the oxygen released mainly comes from the ␣ and ␣ temperature regions. On the other hand, on LSM, the oxygen desorption takes place in the three regions with a predominant release at temperatures higher than 700 • C. It has been observed in earlier studies that there is a direct link between the amount of desorbed oxygen ␣ and ␣ and the surface concentration of oxygen vacancies [26,27]. Thus, a much higher concentration of these anionic vacancies is expected on LSF surface compared to LSM.…”

Section: Structural Morphological and Textural Propertiesmentioning

confidence: 86%

La/Sr-based perovskites as soot oxidation catalysts for Gasoline Particulate Filters

et al. 2015

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Section: Structural Morphological and Textural Propertiesmentioning

confidence: 86%

La/Sr-based perovskites as soot oxidation catalysts for Gasoline Particulate Filters

et al. 2015

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“…Doggali et al. synthesized mesoporous ZrO 2 by using chitosan as a template and used it as a support for a set of transition metals (10 mol % Fe, Co, Ni, Cu, and Mn) . Co/ZrO 2 (Δ T 50 = 118 °C) was the most active soot oxidation catalyst while Ni/ZrO 2 (Δ T 50 = 37 °C) showed little catalytic activity.…”

Section: Oxidation Of Carbonaceous Depositsmentioning

confidence: 99%

Formation and Oxidation/Gasification of Carbonaceous Deposits: A Review

Mahamulkar

Yin

Agrawal

et al. 2016

Ind. Eng. Chem. Res.

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A wide variety of hydrocarbon processes, catalytic or noncatalytic, involve the formation of carbon deposits, either on catalysts or on reactor (or engine/exhaust) surfaces. Therefore, researchers have developed a large array of catalysts to aid the combustion of these deposits. Recently, the mechanism of catalytic carbon oxidation and/or gasification has been the focus of research in an attempt to design better catalysts for carbon removal. With this approach, understanding the mechanism of formation of different types of carbon deposits is desired. Efforts undertaken for studying oxidation or gasification of various forms of carbon deposits are discussed in this review, along with the techniques used to study the mechanism of oxidation/gasification. The kinetics of catalyzed and noncatalytic carbon oxidation are described in detail. The effect of reactive gases such as NO x , water vapor, CO 2 , and SO 2 on the gasification behavior of carbon deposits is also discussed. Reaction rates of oxidation/gasification of carbon under different operating conditions have been calculated, allowing for a comprehensive overview of carbon removal reactivity.

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“…An alternative approach has been pursued by impregnating mesoporous oxide supports such as (mZrO 2 ), silica (MCM), or zeolites with transition metal ions. The exposed hydroxyl groups and the large surface area of the support materials allow the attachment of complexes or W and Mo heteropolyacids in combination with Si and P (Table , entries 22, 24‐29, 35–37, 39, and 40).…”

Section: Supported Biomimetic Catalysts For Halogenation Reactionsmentioning

confidence: 99%

Functional Enzyme Mimics for Oxidative Halogenation Reactions that Combat Biofilm Formation

et al. 2018

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Transition-metal oxide nanoparticles and molecular coordination compounds are highlighted as functional mimics of halogenating enzymes. These enzymes are involved in halometabolite biosynthesis. Their activity is based upon the formation of hypohalous acids from halides and hydrogen peroxide or oxygen, which form bioactive secondary metabolites of microbial origin with strong antibacterial and antifungal activities in follow-up reactions. Therefore, enzyme mimics and halogenating enzymes may be valuable tools to combat biofilm formation. Here, halogenating enzyme models are briefly described, enzyme mimics are classified according to their catalytic functions, and current knowledge about the settlement chemistry and adhesion of fouling organisms is summarized. Enzyme mimics with the highest potential are showcased. They may find application in antifouling coatings, indoor and outdoor paints, polymer membranes for water desalination, or in aquacultures, but also on surfaces for food packaging, door handles, hand rails, push buttons, keyboards, and other elements made of plastic where biofilms are present. The use of natural compounds, formed in situ with nontoxic and abundant metal oxide enzyme mimics, represents a novel and efficient "green" strategy to emulate and utilize a natural defense system for preventing bacterial colonization and biofilm growth.

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Transition metals supported on mesoporous ZrO2 for the catalytic control of indoor CO and PM emissions

Cited by 17 publications

References 27 publications

La/Sr-based perovskites as soot oxidation catalysts for Gasoline Particulate Filters

La/Sr-based perovskites as soot oxidation catalysts for Gasoline Particulate Filters

Formation and Oxidation/Gasification of Carbonaceous Deposits: A Review

Functional Enzyme Mimics for Oxidative Halogenation Reactions that Combat Biofilm Formation

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