Hydrogenation of toluene over nickel nanoparticles supported on SBA-3 and AlSBA-3 materials

Kot, Monika; Kiderys, Angelika; Janiszewska, Ewa; Pietrowski, Mariusz; Yang, Chun-Chuan; Zieliński, Michał

doi:10.1016/j.cattod.2019.09.001

Cited by 12 publications

(10 citation statements)

References 51 publications

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“…Various synthesis procedures have been employed, which include direct synthesis, postsynthetic wet impregnation, Sonication, post-grafting, Insitu-method, the chemical fluid method, evaporation induced wet impregnation, as well as immobilization [38][39][40][41][42][43][44][45] . Table-1 illustrates the different types of synthesis of functionalized metal-doped SBA-15 and their textural properties.…”

Section: Figure-1 a Typical Synthesis Steps Of Sba-15mentioning

confidence: 99%

“…Biomass-derived furfural such as furfuryl alcohol, methyl levulinate, Maleic anhydride, succinic acid, and many more chemicals intermediate is prepared by renewable resources. These chemicals find extensively used for the synthesis of the valuable compound for flavoring agents, fuel additives, and fine chemicals [36][37][38][39][40][41][42][43][44][45][46][47][48][49][50][51][52][53] . In recent times, However, the author invented continuous production of GVL, and reported the 77% yield of GVL in the 24h stream by using Co-SBA-15 catalyst under atmospheric H 2 pressure [36][37][38] .…”

Section: Biomass Valorizationmentioning

confidence: 99%

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Recent developments in metal-doped SBA-15 catalysts for heterogeneous catalysis and sustainable chemistry

Mahato

Krithiga

2022

Can. J. Chem.

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For the invention of new advanced sustainable materials for heterogeneous catalysis require control of structural parameter of active sites. Mesoporous silica, especially SBA-15 has some unique and important features such as highly ordered mesopore, greater hydrothermal stability, greater wall thickness, large surface area, and adjustable pore volume. All these properties render it a promising material for catalysis, adsorption, supporting material, biomedical application, and environmental remediation. However, purely SBA-15 lacks acidic characters, which hinder its catalysis capabilities. Therefore, functionalized SBA-15 improves the catalytic activities for versatile applications. Thus, in this paper, we attempted to summarize the synthesis procedures, various functionalization processes, and application of metal modified SBA-15 in organic synthesis, fine chemical synthesis, photocatalysis, and decontamination of water. Furthermore, physicochemical properties, sustainability, and efficacies are discussed in detail for future reference and scope of studies.

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Section: Figure-1 a Typical Synthesis Steps Of Sba-15mentioning

confidence: 99%

Section: Biomass Valorizationmentioning

confidence: 99%

Recent developments in metal-doped SBA-15 catalysts for heterogeneous catalysis and sustainable chemistry

Mahato

Krithiga

2022

Can. J. Chem.

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“…The different type of Ni precursor also affects the hydrogenation process. The catalysts prepared from nickel nitrate are more catalytically active than nickel acetate derived catalyst due to improved textural attributes and efficient dispersion of nickel ions on the surface of the support [37] …”

Section: Hydrogenation Reactionmentioning

confidence: 99%

The Recent Progress on Supported and Recyclable Nickel Catalysts towards Organic Transformations: A Review

Ghatak

Das²

2021

ChemistrySelect

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To date, the transformation of organic compounds to nifty chemicals plays a pivotal role in the global industrial market and renewable economy.The substantial attention has been bestowed to the supported Ni catalyst because of their attractive stability in air and excellent catalytic efficacy in various organic transformations.This review article aims to offer a comprehensive review on the remarkable advances in the development of various robust support containing Ni catalysts for efficient organic reactions, such as, Hydrogenation, Oxidation, Coupling, Multicomponent Reactions (MCRs), Amination, Hydration, Polymerization etc. The role of supported Ni catalysts towards different organic reactions is highlighted with its associated mechanism. The role of numerous solid supported Nickel nanoparticles based nontoxic, cheap and reusable catalyst in organic synthesis and their applications towards the green synthesis of various important organic frameworks including biologically active heterocycles has been highlighted in this review. The observed shortcomings and future research perspective are also accentuated.

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“…It has been demonstrated that the support used to disperse an active phase can affect catalyst activity for aromatic hydrocarbons hydrogenation. Several authors have evidenced that the performance of metal catalysts supported on acidic supports for hydrogenation of different organic compounds—e.g., benzene, toluene, and xylene—is enhanced in comparison to catalysts on inert supports, e.g., SiO 2 [ 4 , 5 , 6 , 7 , 8 ] and ordered mesoporous silica [ 9 , 10 , 11 ]. It was found that aromatics adsorbed on acid site can be hydrogenated with the activated hydrogen spillover from metal centers [ 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

“…The acidity of silica depends on the amount of the silanol groups and their form (acidic silanol nests or vicinal silanols, non-acidic isolated silanols), which in turn depends on the method of its preparation or the post-synthesis treatment (e.g., calcination) [ 14 ]. The acidic properties of mesoporous silica can be modified by isomorphous substitution (e.g., obtaining AlMCM-41 [ 15 ] or AlSBA-3 [ 9 , 16 ]) or using post-synthesis method [ 17 ]. Some studies have also indicated that the treatment of siliceous counterparts of zeolites, particularly of MFI-type (silicalite-1), with aqueous solution of different ammonium salts and basic compound—e.g., aqueous ammonia solution, alkylamines, or allylamines—resulted in enhanced activity in the Beckmann rearrangement reaction (an acid-catalyzed rearrangement of an oxime to an amide) [ 18 , 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Modification of Amorphous Silica with Ammonium Agents on the Physicochemical Properties and Hydrogenation Activity of Ir/SiO2 Catalysts

Kot

Wojcieszak²,

Janiszewska

et al. 2021

Materials

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The modification of commercial silica with solutions of NH4F or NH4Cl salts, followed by thermal treatment, enabled generation of the acidic sites in SiO2 and changed its textural properties. The use of ammonium salts solution also caused the generation of additional porosity. Using NH4F solution caused significant decrease in the specific surface area and the increase in the average pore diameter. The number and strength of resulting acid sites depend on the nature of anion in the applied ammonium salt and the concentration of salt solution. It has been found that the sample treated with NH4F presented higher total acidity (TPD–NH3) and the amount as well as the strength of acid sites increased with the concentration of the used modifier. As modified amorphous SiO2 materials used as a support for iridium (1 wt %, Ir(acac)3) nanoparticles permitted to obtain highly active catalysts for toluene hydrogenation under atmospheric pressure. The highest activity (expressed as the apparent rate and TOF) was obtained for iridium catalysts supported on silica modified by NH4F with the highest acidity. The modification of silica with NH4F favors the generation of centers able to adsorb toluene, which results in higher activity of this catalyst.

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Hydrogenation of toluene over nickel nanoparticles supported on SBA-3 and AlSBA-3 materials

Cited by 12 publications

References 51 publications

Recent developments in metal-doped SBA-15 catalysts for heterogeneous catalysis and sustainable chemistry

Recent developments in metal-doped SBA-15 catalysts for heterogeneous catalysis and sustainable chemistry

The Recent Progress on Supported and Recyclable Nickel Catalysts towards Organic Transformations: A Review

Effect of Modification of Amorphous Silica with Ammonium Agents on the Physicochemical Properties and Hydrogenation Activity of Ir/SiO2 Catalysts

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