Cocatalytic effect of palladium and zinc in the condensation of alcohol carbon backbones into hydrocarbons

Chistyakov, A. V.; Цодиков, М. В.; Murzin, Vadim; Yandieva, F. A.; Zubavichus, Ya. V.; Kozitsyna, N. Yu.; Гехман, А. Е.; Kriventsov, V. V.; Моисеев, И. И.

doi:10.1134/s0023158411020030

Cited by 22 publications

(4 citation statements)

References 20 publications

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“…Addition of glycerol to any of these systems enhanced the selectivity for aliphatic C 4 –C 10+ hydrocarbons. The surface of the catalyst was probed by EXAFS and XRD, which suggested the presence of Pd(0), Pd hydride, Pd–Zn alloy, and mixed zinc–alumina spinel …”

Section: Reactions In the Presence Of Heterometallic Catalystsmentioning

confidence: 99%

Multimetallic Catalysis Based on Heterometallic Complexes and Clusters

2014

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Section: Reactions In the Presence Of Heterometallic Catalystsmentioning

confidence: 99%

Multimetallic Catalysis Based on Heterometallic Complexes and Clusters

2014

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“…EXAFS was used in conjunction with other methods to study such nanosized platinum supported on various oxide and carbon supports [33][34][35][36][37][38]. This method seems be promising and capable of delivering additional information during structural studies and determination of the phase composition of the supported active component in various finely dispersed and low-percentage catalysts.…”

Section: Introductionmentioning

confidence: 99%

Effect of Platinum Precursor on the Properties of Pt/N-Graphene Catalysts in Formic Acid Decomposition

et al. 2022

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Properties of a novel catalytic material, Pt/N-graphene, in gas-phase decomposition of formic acid to obtain pure hydrogen were studied. The graphene powder doped with nitrogen atoms was used as the carbon support. The following methods were used to characterize the synthesized catalysts: X-ray photoelectron spectroscopy (XPS), high-resolution transmission electron microscopy (HRTEM), EXAFS and CO chemisorption. It was determined that the platinum precursor substantially affects the state of the metal in the Pt/N-graphene catalysts. When Pt(NO3)4 was used as the precursor, platinum on the catalyst surface was in the form of nanocrystals. Meanwhile, the use of H2PtCl6 led to the formation of atomically dispersed platinum stabilized on the surface of N-graphene. Carbon structures containing defects in the graphene layer surrounded by four nitrogen atoms had strong interactions with platinum atoms and acted as the sites where atomic platinum was stabilized.

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“…It was shown that in the case of the initial (unreduced) catalysts, the highest activity was found for 1%-PdAu/HPS, while the lowest reaction rate was observed in the case of 1%-PdZn/HPS ( Figure 9 a,b). It is known that palladium and zinc acetates can form heterometallic complexes [ 37 ], which can likely complicate the formation of active Pd species in the Suzuki reaction. Unreduced 1%-PdCu/HPS showed moderate results.…”

Section: Resultsmentioning

confidence: 99%

Mono- and Bimetallic Nanoparticles Stabilized by an Aromatic Polymeric Network for a Suzuki Cross-Coupling Reaction

et al. 2021

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This work addresses the Suzuki cross-coupling between 4-bromoanisole (BrAn) and phenylboronic acid (PBA) in an environmentally benign ethanol–water solvent catalysed by mono- (Pd) and bimetallic (PdAu, PdCu, PdZn) nanoparticles (NPs) stabilised within hyper-cross-linked polystyrene (HPS) bearing tertiary amino groups. Small Pd NPs of about 2 nm in diameters were formed and stabilized by HPS independently in the presence of other metals. High catalytic activity and complete conversion of BrAn was attained at low Pd loading. Introduction of Zn to the catalyst composition resulted in the formation of Pd/Zn/ZnO NPs, which demonstrated nearly double activity as compared to Pd/HPS. Bimetallic core-shell PdAu/HPS samples were 3-fold more active as compared to Pd/HPS. Both Pd/HPS and PdAu/HPS samples revealed promising stability confirmed by catalyst recycling in repeated reaction runs.

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Cocatalytic effect of palladium and zinc in the condensation of alcohol carbon backbones into hydrocarbons

Cited by 22 publications

References 20 publications

Multimetallic Catalysis Based on Heterometallic Complexes and Clusters

Multimetallic Catalysis Based on Heterometallic Complexes and Clusters

Effect of Platinum Precursor on the Properties of Pt/N-Graphene Catalysts in Formic Acid Decomposition

Mono- and Bimetallic Nanoparticles Stabilized by an Aromatic Polymeric Network for a Suzuki Cross-Coupling Reaction

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