Selective CO oxidation over monolithic AuMgO/Al<sub>2</sub>O<sub>3</sub> catalysts

Özdemir, Seval; Önsan, Z. İlsen; Yıldırım, Ramazan

doi:10.1002/jctb.2682

Cited by 7 publications

(2 citation statements)

References 26 publications

(20 reference statements)

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“…Colloidal alumina is available commercially, and it can be dispersed in a solution containing water. For example, Özdemir et al have used colloidal alumina dispersed in water to coat monoliths for carbon monoxide oxidation [100]. Barbero et al have reported successful coating of their metallic monoliths with the use of colloidal alumina as a primer and a stabilizer [101].…”

Section: Coating γ-Alumina As a Secondary Supportmentioning

confidence: 99%

Monoliths: A Review of the Basics, Preparation Methods and Their Relevance to Oxidation

2017

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Considerable research has been conducted on monolithic catalysts for various applications. Strategies toward coating monoliths are of equal interest and importance. In this paper, the preparation of monoliths and monolithic catalysts have been summarized. More specifically, a brief explanation for the manufacturing of ceramic and metallic monoliths has been provided. Also, different methods for coating γ-alumina, as a secondary support, are included. Techniques used to deposit metal-based species, zeolites and carbon onto monoliths are discussed. Furthermore, monoliths extruded with metal oxides, zeolites and carbon are described. The main foci are on the reasoning and understanding behind the preparation of monolithic catalysts. Ideas and concerns are also contributed to encourage better approaches when designing these catalysts. More importantly, the relevance of monolithic structures to reactions, such as the selective oxidation of alkanes, catalytic combustion for power generation and the preferential oxidation of carbon monoxide, has been described.

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Section: Coating γ-Alumina As a Secondary Supportmentioning

confidence: 99%

Monoliths: A Review of the Basics, Preparation Methods and Their Relevance to Oxidation

2017

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“…Based on the fundamental studies of Bond et al , the pioneering work of Haruta et al , and seminal studies of Hutchings gold catalysis has been widely investigated . Rossi et al reviewed the key aspects of selective oxidations using supported gold catalysis.…”

Section: Introductionmentioning

confidence: 99%

Selective oxidation of benzylamine to N-benzyl benzaldimine over nanogold immobilized SBA-15 under solvent-free conditions

Neeli

Kumar

Ganji

et al. 2014

J. Chem. Technol. Biotechnol.

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BACKGROUND: Imines are important chemical intermediates for the fine chemical and pharmaceutical industry, particularly as lipoxygenase inhibitors, anti-inflammatory and anti-cancer agents. For the synthesis of imines, the standard protocol is the condensation of carbonyl compounds with amines in Lewis acids. Recently, considerable attention has been paid to oxidation of secondary amines. Subsequently, direct catalytic oxidation of primary amines has been emerging as a key methodology. However, limited studies have been made using Cu, Pd, Ru, Mn, Fe, V, Ti, Nb etc., as catalysts. Herein, nanogold immobilized Santa Barbara Amorphous (SBA-NG) catalyst has been described. RESULTS: For the synthesis of SBA-NG catalyst, SBA-15 was functionalized with propylamine (SBA-NH 2 ) followed by immobilized nanogold particles using AuCl 3 and NaBH 4 . Structural and textural characteristics of SBA-NG catalyst have been authenticated by low-angle XRD and N 2 sorption techniques. Metallic nature and 2-5 nm sized nanogold have been assessed by wide-angle XRD and TEM analysis respectively. The SBA-NG converted benzylamine into N-benzyl benzaldimine with 98% conversion and 99% selectivity. CONCLUSIONS: Facile preparation, high efficiency, stable activity, no solvent requirement, scope for large scale application are the credentials of SBA-NG catalyst, which are imparted by nanoscale dispersion, confined pore environment, high surface area and minimized diffusion limitations.

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Recent Advances in Preferential Oxidation of CO in H2 Over Gold Catalysts

Lakshmanan

Park

2014

Catal Surv Asia

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Selective CO oxidation over monolithic AuMgO/Al₂O₃ catalysts

Cited by 7 publications

References 26 publications

Monoliths: A Review of the Basics, Preparation Methods and Their Relevance to Oxidation

Monoliths: A Review of the Basics, Preparation Methods and Their Relevance to Oxidation

Selective oxidation of benzylamine to N-benzyl benzaldimine over nanogold immobilized SBA-15 under solvent-free conditions

Recent Advances in Preferential Oxidation of CO in H2 Over Gold Catalysts

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Selective CO oxidation over monolithic AuMgO/Al2O3 catalysts

Cited by 7 publications

References 26 publications

Monoliths: A Review of the Basics, Preparation Methods and Their Relevance to Oxidation

Monoliths: A Review of the Basics, Preparation Methods and Their Relevance to Oxidation

Selective oxidation of benzylamine to N-benzyl benzaldimine over nanogold immobilized SBA-15 under solvent-free conditions

Recent Advances in Preferential Oxidation of CO in H2 Over Gold Catalysts

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Selective CO oxidation over monolithic AuMgO/Al₂O₃ catalysts