A Career in Catalysis: Laura Prati

Campisi, Sebastiano; Dimitratos, Nikolaos; Villa, Alberto

doi:10.1021/acscatal.2c05237

Cited by 4 publications

(2 citation statements)

References 151 publications

(261 reference statements)

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“…Using the Au x Pd y /CNT with nearly equivalent Au/Pd ratios (1.5:1−1:1.5), the BnOH conversions sharply raised to 75.8−90.8%. Other detectable byproduct was toluene in major, which was resulted from the disproportionation or hydrogenolysis of BnOH by the hydride generated during reaction, 27 especially when the monometallic Au/CNT and Pd/CNT were used. Compared to the monometallic Au/ CNT and Pd/CNT, the selectivity of byproducts greatly decreased by the bimetallic Au x Pd y /CNT samples.…”

Section: Resultsmentioning

confidence: 99%

Structural Construction of Au–Pd Nanocomposite for Alkali-Free Oxidation of Benzyl Alcohol

Luo

Zhou

Yang

et al. 2023

ACS Appl. Mater. Interfaces

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A bimetallic Au−Pd system is an alternative candidate to catalyze primary alcohol oxidation and is of crucial importance for the sustainable chemical industry. However, understanding the bimetallic system in terms of the nanostructure is still challenging. Herein, we adopt the in situ colloid immobilization to obtain a series of bimetallic Au x Pd y /CNT samples supported by carbon nanotubes (CNTs). Elaborate characterizations confirmed the bimetallic structure of AuPd alloy particles with randomly dispersed Pd 2+ on the surface, forming the AuPd@PdO structure on CNTs. Unlike the monometallic samples, bimetallic ones, particularly Au 1 Pd 1 /CNT, efficiently transformed benzyl alcohol in an alkali-free mild condition. The DFT simulation confirmed the electron-rich gold atoms as a steric and electronic regulator to confine the electron-deficient Pd atoms in alloy particles. The interacted metal sites in the alloy system activated the alcohol with optimized adsorption configuration. Surface Pd 2+ transported active oxygen to capture the abstracted H on alcohol. The collaboration between metal sites facilitated the transformation of benzyl alcohol to benzaldehyde with the selectivity of 91.8% by a fast TOF of 1274 h −1 at only 80 °C.

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Section: Resultsmentioning

confidence: 99%

Structural Construction of Au–Pd Nanocomposite for Alkali-Free Oxidation of Benzyl Alcohol

Luo

Zhou

Yang

et al. 2023

ACS Appl. Mater. Interfaces

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“…Common catalytic supports are carbon nanotubes (CNTs) and graphene (Gs), including oxidized ones (GOs) [193]. Zhang et al [194] used CNTs to support porphyrin (PP) complexes containing ruthenium.…”

Section: Hydrogenation Of Levulinic Acidmentioning

confidence: 99%

An Overview of Heterogeneous Catalysts Based on Hypercrosslinked Polystyrene for the Synthesis and Transformation of Platform Chemicals Derived from Biomass

Manaenkov,

Nikoshvili,

Bykov

et al. 2023

Molecules

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Platform chemicals, also known as chemical building blocks, are substances that serve as starting materials for the synthesis of various value-added products, which find a wide range of applications. These chemicals are the key ingredients for many fine and specialty chemicals. Most of the transformations of platform chemicals are catalytic processes, which should meet the requirements of sustainable chemistry: to be not toxic for humans, to be safe for the environment, and to allow multiple reuses of catalytic materials. This paper presents an overview of a new class of heterogeneous catalysts based on nanoparticles of catalytically active metals stabilized by a polymer matrix of hypercrosslinked polystyrene (HPS). This polymeric support is characterized by hierarchical porosity (including meso- and macropores along with micropores), which is important both for the formation of metal nanoparticles and for efficient mass transfer of reactants. The influence of key parameters such as the morphology of nanoparticles (bimetallic versus monometallic) and the presence of functional groups in the polymer matrix on the catalytic properties is considered. Emphasis is placed on the use of this class of heterogeneous catalysts for the conversion of plant polysaccharides into polyols (sorbitol, mannitol, and glycols), hydrogenation of levulinic acid, furfural, oxidation of disaccharides, and some other reactions that might be useful for large-scale industrial processes that aim to be sustainable. Some challenges related to the use of HPS-based catalysts are addressed and multiple perspectives are discussed.

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Effects of alloying palladium with gold in furfural hydrogenation:An in situ ATR-IR spectroscopy and density functional theory study

Campisi,

Bellomi,

Chinchilla

et al. 2024

Catalysis Communications

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A Career in Catalysis: Laura Prati

Cited by 4 publications

References 151 publications

Structural Construction of Au–Pd Nanocomposite for Alkali-Free Oxidation of Benzyl Alcohol

Structural Construction of Au–Pd Nanocomposite for Alkali-Free Oxidation of Benzyl Alcohol

An Overview of Heterogeneous Catalysts Based on Hypercrosslinked Polystyrene for the Synthesis and Transformation of Platform Chemicals Derived from Biomass

Effects of alloying palladium with gold in furfural hydrogenation:An in situ ATR-IR spectroscopy and density functional theory study

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