Montmorillonite-stabilized gold nanoparticles for nitrophenol reduction

Chenouf, Meriem; Megías‐Sayago, Cristina; Ammari, Fatima; Ivanova, Svetlana; Odriozola, J.A.

doi:10.1016/j.crci.2019.07.005

Cited by 13 publications

(2 citation statements)

References 55 publications

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“…The utility of mont as a support for metal nanoparticles has also attracted attention for the design of highperformance catalysts. Mont-supported metal catalysts exhibit properties different from those of other catalyst supports, such as the combined effect of the solid acidity of mont and the supported metal [62,63] and the stabilizing effect of metal particles in the interlayer [64][65][66].…”

Section: Catalysis Of Metals Supported On Montmorillonitementioning

confidence: 99%

Montmorillonite-based heterogeneous catalysts for efficient organic reactions

Takabatake

Motokura

2022

Nano Ex.

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In this review, we give a brief overview of recently developed montmorillonite-based heterogeneous catalysts used for efficient organic reactions. Cation-exchanged montmorillonite catalysts, metal catalysts supported on montmorillonite, and an interlayer design used for selective catalysis are introduced and discussed. In traditional syntheses, homogeneous acids and metal salts were used as catalysts, but the difficulty in separation of catalysts from products was a bottleneck when considering industrialization. The use of solid heterogeneous catalysts is one of the major solutions to overcome this problem. Montmorillonite can be used as a heterogeneous catalyst and/or catalyst support. This clay material exhibits strong acidity and a stabilizing effect on active species, such as metal nanoparticles, due to its unique layered structure. These advantages have led to the development of montmorillonite-based heterogeneous catalysts. Acidic montmorillonite, such as proton-exchanged montmorillonite, exhibits a high catalytic activity for the activation of electrophiles, such as alcohols, alkenes, and even alkanes. The montmorillonite interlayer/surface also functions as a good support for various metal species used for oxidation and carbon-carbon bond forming reactions. The use of an interlayer structure enables selective reactions and the stabilization of catalytically active species.

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Section: Catalysis Of Metals Supported On Montmorillonitementioning

confidence: 99%

Montmorillonite-based heterogeneous catalysts for efficient organic reactions

Takabatake

Motokura

2022

Nano Ex.

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show abstract

“…This is a green strategy for water purication. Other materials, such as noble metal nanoparticles (Ag, Pd), [17][18][19] nanocomposites, 20,21 carbonaceous materials 22 and enzymes, 23 can also be used as catalysts for the hydrogenation of nitroaromatics. Among the many catalyst candidates, AuNPs are one of the most promising catalytic materials due to their simple preparation procedure and powerful catalytic activity.…”

Section: Introductionmentioning

confidence: 99%