Palladium nanoparticle-graphene hybrids as active catalysts for the Suzuki reaction

Li, Yang; Fan, Xiaobin; Qi, Junjie; Ji, Junyi; Wang, Shulan; Zhang, Guoliang; Zhang, Fengbao

doi:10.1007/s12274-010-0002-z

Cited by 288 publications

(199 citation statements)

References 49 publications

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“…Zhang et al [178] successfully synthesized Pd NPgraphene hybrids in a facile manner by reducing palladium acetate (Pd(OAc) 2 ) in the presence of sodium dodecyl sulfate (SDS), which was used as both surfacant and reducing agent. They demonstrated that the Pd NP-graphene hybrids can act as efficient catalysts for Suzuki reaction under aqueous and aerobic conditions, with the reaction reaching completion in 5 min.…”

Section: C-c Coupling Reactionsmentioning

confidence: 99%

Graphitized nanocarbon-supported metal catalysts: synthesis, properties, and applications in heterogeneous catalysis

Huang

2017

Sci. China Mater.

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Graphitized nanocarbon materials can be an ideal catalyst support for heterogeneous catalytic systems. Their unique physical and chemical properties, such as large surface area, high adsorption capacity, excellent thermal and mechanical stability, outstanding electronic properties, and tunable porosity, allow the anchoring and dispersion of the active metals. Therefore, currently they are used as the key support material in many catalytic processes. This review summarizes recent relevant applications in supported catalysts that use graphitized nanocarbon as supports for catalytic oxidation, hydrogenation, dehydrogenation, and C-C coupling reactions in liquid-phase and gas-solid phase-reaction systems. The latest developments in specific features derived from the morphology and characteristics of graphitized nanocarbon-supported metal catalysts are highlighted, as well as the differences in the catalytic behavior of graphitized nanocarbon-supported metal catalysts versus other related catalysts. The scientific challenges and opportunities in this field are also discussed. Keywords: nanocarbon materials; graphitized carbon supports; metal catalysts; hetergeneous catalysis INTRODUCTIONCarbon combines its atoms in diverse hybridization states (sp, sp 2 , sp 3 ) to form a variety of polymorphs. These are composed entirely of carbon but have different physical structures and different names, including diamond, graphite, fullerenes, and carbines, among others [1][2][3][4][5]. Because these various and versatile allotropes produce materials with a large range of properties, carbon materials can be used in a number of technological processes, including high-tech catalytic ones [6][7][8][9][10].In heterogeneous catalysis, carbon material plays wellestablished and important roles in a wide range of applications, both as catalyst in its own right and as a unique support material [11][12][13][14][15]. The chemical stability of carbon supports in some specifically aqueous phase biomass conversion surpasses that of metal oxide materials; in addition, carbon materials present other common and key advantages as support materials for catalysis [1,5]. From the point of physical structure, porous carbon can be prepared in different forms (granules, cloth, fibers, pallets, etc.). Due to its chemical properties, carbon structure is resistant to both acidic and basic media. The structure of carbon is stable at high temperature (even above 1023 K under inert atmosphere). The hydrophilic/ hydrophobic nature of carbon can be easily modified. Active metals on the support can be easily reduced. For the purposes of industrial economy and environment, the active phase can be easily recovered. Conventional carbon supports are lower-cost and more easily available than other conventional supports. Although several kinds of carbon materials have been studied, active carbon (AC) [12,[16][17][18][19] and, to a lesser extend, carbon black [20][21][22][23] have long been the most commonly used carbon supports. AC is an amorphous solid prepa...

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Section: C-c Coupling Reactionsmentioning

confidence: 99%

Graphitized nanocarbon-supported metal catalysts: synthesis, properties, and applications in heterogeneous catalysis

Huang

2017

Sci. China Mater.

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“…These Pd/G catalysts exhibited quite good efficiencies for Suzuki reaction, under aqueous as well as aerobic conditions, in a very short time span. 47 Recently, a number of research groups have successfully explored the potential of Pd/GO/G catalysts in facile Suzuki coupling reactions. [48][49][50][51] In yet another work, Gao and coworkers utilized Au/GO nanocomposites, which showed unusually high activities for SuzukiMiyaura coupling reaction of chlorobenzene and phenylboronic acid.…”

Section: +2mentioning

confidence: 99%

Versatilities of graphene-based catalysts in organic transformations

Garg

Ling

2013

Green Materials

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“…Se han explorado materiales híbridos como grafeno dopado con metales nobles para este propósito, sin embargo, estos metales están limitados por su escasa disponibilidad y el elevado costo, [4,5,6]. En este contexto, los metales de transición pueden servir como una alternativa prometedora [7,8,9]. En la búsqueda de nuevos materiales catalíticos los métodos computacionales de primeros principios han demostrado ser útiles herramientas en el diseño racional de catalizadores ya que permiten llegar a resultados y tendencias comparables con datos experimentales, de un modo relativamente rápido, [10].…”

Section: Introductionunclassified

Propiedades catalíticas de grafeno dopado con metales de transición

2018

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RESUMENEn este trabajo se realiza un estudio basado en la Teoría del Funcional de la Densidad de láminas de grafeno dopadas con Fe, Co y Ni. Se adopta el funcional PBE1PBE y los pseudopotenciales LANL2DZ para los áto-mos metálicos y las bases 6-31G++(d) para los átomos de carbono. Se analizan tres sistemas formados por la sustitución de un átomo carbono por uno de Fe, Co y Ni, respectivamente. Se estudiaron las propiedades energéticas, electrónicas y la reactividad química, haciendo una comparación sistemática con una lámina de grafeno puro. Para simular la presencia del solvente en los sistemas de estudio se empleó el modelo SCRF=PCM (Self-Consistent Reaction Field=Polarizable Continuum Model). Asimismo, se determinaron las propiedades catalíticas de los sistemas frente a la adsorción de O 2 .Los resultados indican que la presencia del heteroátomos metálicos y agua como solvente modifica la reactividad química y la adsorción de dioxígeno, lo que podría ser determinante en las propiedades catalíticas del grafeno dopado. La lámina de grafeno dopado con níquel resulta la más reactiva y la que presenta energía más favorable frente a la adsorción de oxígeno. Palabras clave: Grafeno dopado, Catalizador, Adsorción de oxígeno, DFT ABSTRACTIn this work a study based on the Density Functional Theory of graphene sheets doped with atoms of Fe, Co and Ni is carried out. The functional PBE1PBE and the pseudopotentials LANL2DZ for the metal atoms, and the 6-31G ++ (d) bases for the carbon atoms were adopted. Three systems formed by the substitution of a carbon atom by one of Fe, Co and Ni, respectively, are analyzed. The energetic, electronic and chemical reactivity properties were studied, making a systematic comparison with a pure graphene sheet.In order to simulate the presence of the solvent in the systems under study, the SCRF = PCM (Self Consistent Reaction Field = Polarizable Continuum Model) was used. In addition, for each system the catalytic properties for O 2 adsorption were determined. Our results indicate that the presence of metal heteroatoms and water as solvent modifies the chemical reactivity and the adsorption of dioxygen, which could be determinant on the catalytic properties of doped graphene. The nickel-doped graphene sheet results to be the most reactive and it is the one with the most favorable energy for the adsorption of oxygen.

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Palladium nanoparticle-graphene hybrids as active catalysts for the Suzuki reaction

Cited by 288 publications

References 49 publications

Graphitized nanocarbon-supported metal catalysts: synthesis, properties, and applications in heterogeneous catalysis

Graphitized nanocarbon-supported metal catalysts: synthesis, properties, and applications in heterogeneous catalysis

Versatilities of graphene-based catalysts in organic transformations

Propiedades catalíticas de grafeno dopado con metales de transición

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