Nanocatalysts for Hydrogenation Reactions

Narayanan, Radha

doi:10.1002/9781118609811.ch11

Cited by 3 publications

(2 citation statements)

References 85 publications

(95 reference statements)

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“…160 Nanocatalysis in particular offers privileged means towards hydrogenation processes, given the extended surface area ratios. 161,162 Pd NPs, for instance, show high reactivity towards H 2 activation [163][164][165][166] as palladium is known to adsorb up to 900 times its own volume. 167,168 Thus, the (chemo)-selectivity of these nanomaterials towards hydrogenation is highly controlled by surface interactions with the modifiers/stabilizers, the substrates or even the supports.…”

Section: Hydroxyl Compounds From Natural Sourcesmentioning

confidence: 99%

“…The quest for hydrogenation catalysts exhibiting enhanced selectivity and reactivity is an active research field for Pd, Ru, Rh, and Ir transition metal complexes . Nanocatalysis in particular offers privileged means toward hydrogenation processes, given the extended surface area ratios. , Pd NPs, for instance, show high reactivity toward H 2 activation − as palladium is known to adsorb up to 900 times its own volume. , Thus, the (chemo)selectivity of these nanomaterials toward hydrogenation is highly controlled by surface interactions with modifiers/stabilizers, substrates, or even the supports. , …”

Section: Palladium-based Nanocatalysts Applied In Hydrogenationsmentioning

confidence: 99%

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Palladium Nanoparticles in Polyols: Synthesis, Catalytic Couplings, and Hydrogenations

2019

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Alcohols, in particular polyols, are well-known for the synthesis of metal nanoparticles often acting as reducing agents, solvents, and stabilizers. Given not only their structural flexibility depending on the number of OH functions and their inherent H bonding interactions, but also the wide range of polyol molecular weights readily available, different physico-chemical properties (boiling point, polarity, viscosity) could be exploited towards the synthesis of well-defined nanomaterials. In particular, the relevance of the supramolecular structure of polyols has a fundamental impact on the formation of metal nanoparticles thereby favoring the dispersion of the nanoclusters. In the field of the metal-based nanocatalysis, palladium occupies a privileged position mainly due to its remarkable versatility in terms of reactivity representing a foremost tool in synthesis. In this review, we describe the controlled synthesis of Pd-based nanoparticles in polyol medium focusing on the progress in terms of tailoring size, morphology, structure, and surface state. Moreover, we discuss the use of 4.2. C(sp)-C(sp 2) Sonogashira cross-coupling 4.3. C(sp 2)-C(sp 2) Hiyama-Denmark cross-coupling 4.4. C(sp 2)-C(sp 2) Heck-Mizoroki cross-coupling 4.5. C(sp 2)-C(sp 2 /sp 3) Suzuki-Miyaura cross-coupling 4.5.1. In PEG and glycerol media 4.5.2. Solid-supported nanocatalysts 4.6. C(sp 2)-C(sp 2)-C(sp 2) Carbonylative Suzuki cross-coupling 4.7. C(sp 2)-C(sp 2) Ullmann-type homo-coupling 4.8. Miscellaneous: SiN and C-N amination reactions 5. Conclusions and outlook

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Section: Hydroxyl Compounds From Natural Sourcesmentioning

confidence: 99%

Section: Palladium-based Nanocatalysts Applied In Hydrogenationsmentioning

confidence: 99%

Palladium Nanoparticles in Polyols: Synthesis, Catalytic Couplings, and Hydrogenations

2019

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Heterogenized Catalysis on Metals Impregnated Mesoporous Silica

Ghaida

Clément

Mehdi

2018

Novel Nanoscale Hybrid Materials

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Palladium Nanoparticles Immobilized on Magnetic Porous Carbon Derived from ZIF‐67 as Efficient Catalysts for the Semihydrogenation of Phenylacetylene under Extremely Mild Conditions

Zhang

Liu

et al. 2016

ChemCatChem

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A new magnetic porous carbon (MDPC) derived from metal–organic frameworks (MOFs) was synthesized successfully through the direct carbonization of ZIF‐67 crystals and utilized as a support for Pd nanocatalysts. The prepared MDPC not only retains the original morphology of ZIF‐67 crystals but also provides a high surface area and excellent magnetic properties. The designed catalysts (Pd‐MDPC) were tested in the semihydrogenation of phenylacetylene under extremely mild conditions. The Pd nanoparticles are highly dispersed on the MDPC matrix without aggregation and exhibited an excellent catalytic activity and high selectivity toward olefins under mild conditions (25 °C, H2 1 atm). The Pd‐MDPC catalysts were further investigated in the semihydrogenation of several other terminal alkynes. Compared with most traditional carbon materials, such as activated carbon and carbon nanotubes, the MDPC possesses an admirable magnetism so that it could be separated magnetically from the reaction system. Our study indicates that MOF‐derived porous carbon is a suitable support for noble‐metal nanocatalysts and has promise in the field of nanocatalysis.

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Nanocatalysts for Hydrogenation Reactions

Cited by 3 publications

References 85 publications

Palladium Nanoparticles in Polyols: Synthesis, Catalytic Couplings, and Hydrogenations

Palladium Nanoparticles in Polyols: Synthesis, Catalytic Couplings, and Hydrogenations

Heterogenized Catalysis on Metals Impregnated Mesoporous Silica

Palladium Nanoparticles Immobilized on Magnetic Porous Carbon Derived from ZIF‐67 as Efficient Catalysts for the Semihydrogenation of Phenylacetylene under Extremely Mild Conditions

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