Palladium nanoparticles supported on core-shell and yolk-shell Fe3O4@nitrogen doped carbon cubes as a highly efficient, magnetically separable catalyst for the reduction of nitroarenes and the oxidation of alcohols

Movahed, Siyavash Kazemi; Lehi, Noushin Farajinia; Dabiri, Minoo

doi:10.1016/j.jcat.2018.05.003

Cited by 55 publications

(18 citation statements)

References 54 publications

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“…[1][2][3] In particular, the catalytic hydrogenation of nitroarenes with supported catalysts is aw idely accepted strategy,d ue to the easy separation of the product and recovery andr ecyclability of catalyst. Generally, aromatica mines can be synthesized through catalytic reduction or hydrogenation of the corresponding nitroarenes.…”

Section: Introductionmentioning

confidence: 99%

“…[12] Furthermore, in most hydrogenation processes involving H 2 , functionalized nitroarenes with reducible functional groups, such as halogenated groups anda ldehyde groups, exhibit poor chemoselectivity. (1) and (2)]: [18] HCOOH ! Moreover,C TH with formic acid (FA) as hydrogen source is considered as an alternative to replace H 2 for nitroarenehydrogenation.…”

Section: Introductionmentioning

confidence: 99%

“…Many noble-metal-based catalysts show high efficiency for catalytic decomposition of FA and CTH reactions according to Equation (1). Many noble-metal-based catalysts show high efficiency for catalytic decomposition of FA and CTH reactions according to Equation (1).…”

Section: Introductionmentioning

confidence: 99%

“…Generally, aromatica mines can be synthesized through catalytic reduction or hydrogenation of the corresponding nitroarenes. [1][2][3] In particular, the catalytic hydrogenation of nitroarenes with supported catalysts is aw idely accepted strategy,d ue to the easy separation of the product and recovery andr ecyclability of catalyst. To date, supported catalysts such as noble-metal catalysts, non-noble metal catalysts, and metal-free catalysts have been reported for catalytic hydrogenationo fn itroarenes.…”

Section: Introductionmentioning

confidence: 99%

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Biomass Sucrose‐Derived Cobalt@Nitrogen‐Doped Carbon for Catalytic Transfer Hydrogenation of Nitroarenes with Formic Acid

et al. 2018

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Fabrication of non‐noble metal‐based heterogeneous catalysts by a facile and cost‐effective strategy for ecofriendly catalytic transfer hydrogenation (CTH) is of great significance for organic transformations. A cobalt@nitrogen‐doped carbon (Co@NC) catalyst was prepared from renewable biomass‐derived sucrose, harmless melamine, and earth‐abundant Co(AcO)2 as the precursor materials by hydrothermal treatment and carbonization. Co nanoparticles (NPs) were coated with NC shells and uniformly embedded in the NC framework. The as‐obtained Co@NC‐600 (carbonized at 600 °C) catalyst exhibited excellent catalytic efficiency for CTH of various functionalized nitroarenes with formic acid (FA) as hydrogen donor in aqueous solution. The uniformly incorporated N atoms in the C matrix and the encapsulated Co NPs showed synergistic effects in the CTH reactions. A mechanistic analysis indicated that the protons from FA were activated by Co sites after being captured by N atoms, and then reacted with nitroarenes adsorbed on the surface of the catalysts to generate the corresponding aromatic amines. Moreover, the catalyst showed excellent durability and reusability without obvious decrease in activity even after five reaction cycles. Thus, the study reported herein provides a cost‐effective, sustainable strategy for fabrication of biomass‐derived non‐noble metal‐based catalysts for green and efficient catalytic transformations.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Biomass Sucrose‐Derived Cobalt@Nitrogen‐Doped Carbon for Catalytic Transfer Hydrogenation of Nitroarenes with Formic Acid

et al. 2018

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“…Therefore, the surface modification of magnetic NPs is necessary for not only increasing the dispersion and compatibility to the solvent but also for providing linker groups to anchor desirable catalytic moiety . Various research efforts have resulted in the development of a series of functionalized magnetic NPs with the excellent catalytic activity and reusability for different organic transformations such as C−C coupling, C−N coupling, multicomponent reactions, hydrogenation, oxidation, cyanation of aryl halides, reduction, and coupling reaction of terminal alkyne (A 3 ‐coupling) …”

Section: Introductionmentioning

confidence: 75%

Palladium Acetate and Pd Nanoparticles Loaded Hexamethylenetetramine Anchored Magnetically Retrievable Assemblies for Catalyzing Mizoroki‐Heck Type Mono and Gem‐Dicoupling Reactions

Rathod

Kumar

et al. 2020

ChemistrySelect

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Fe3O4 nanoparticles have been covalently coated and chemically modified to anchor hexamethylenetetramine (Fe3O4@HMTA) for hosting Pd catalysts such as palladium acetate and palladium nanoparticles. Thus prepared nanocatalyst assemblies have been extensively characterized for their chemical, physical, thermal and magnetic properties. The turnover number and turnover frequency of these catalysts in a model Mizoroki‐Heck coupling reaction involving 3‐acrylomorpholine and iodobenzene with a base as solvent are found to be 186 and 46 h−1, respectively, which are better than that reported in literature. This was attributed to synergistic effect of local basic environment of HMTA rich in tertiary nitrogen content. Gem‐dicoupled products are formed when reactions are performed in the presence of 1 equivalent of acrylate and 2.1 equivalents of aryl iodide, and gem‐hetero‐dicoupled product is obtained when reaction is performed in sequential manner. The mechanisms of the formation of the gem‐homo‐dicoupled and gem‐hetero‐dicoupled products have been elucidated by using the results obtained from NMR and single crystal X‐ray crystallography studies.

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Encapsulated Cadmium Sulfide in Silicon Dioxide Porous Shells for Enhanced Photocatalytic Sustainability and Commendable Protection of Organic Carriers

Zhao

Tian

Shi

et al. 2019

Adv Materials Inter

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photocatalysts including Bi-based photocatalysts, [1] Co-based photocatalysts, [2] carbon nitride (C 3 N 4 ), [3] cadmium selenide (CdSe), and cadmium sulfide (CdS) [4] have been developed for utilizing sunlight efficiently. Among them, one of the most representative photocatalysts is CdS, which possesses high photosensitivity and excellent photocatalytic performance owing to its relatively narrow bandgap (E g = 2.2 eV) and appropriate band structure posi-

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Palladium nanoparticles supported on core-shell and yolk-shell Fe3O4@nitrogen doped carbon cubes as a highly efficient, magnetically separable catalyst for the reduction of nitroarenes and the oxidation of alcohols

Cited by 55 publications

References 54 publications

Biomass Sucrose‐Derived Cobalt@Nitrogen‐Doped Carbon for Catalytic Transfer Hydrogenation of Nitroarenes with Formic Acid

Biomass Sucrose‐Derived Cobalt@Nitrogen‐Doped Carbon for Catalytic Transfer Hydrogenation of Nitroarenes with Formic Acid

Palladium Acetate and Pd Nanoparticles Loaded Hexamethylenetetramine Anchored Magnetically Retrievable Assemblies for Catalyzing Mizoroki‐Heck Type Mono and Gem‐Dicoupling Reactions

Encapsulated Cadmium Sulfide in Silicon Dioxide Porous Shells for Enhanced Photocatalytic Sustainability and Commendable Protection of Organic Carriers

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