Ethylene Polymerization Catalyzed by Pyrene‐Tagged Iron Complexes: The Positive Effect of π‐Conjugation and Immobilization on Multiwalled Carbon Nanotubes

Zhang, Liping; Zhang, Wenjuan; Serp, Philippe; Sun, Wen‐Hua; Durand, Jérôme

doi:10.1002/cctc.201301063

Cited by 20 publications

(17 citation statements)

References 83 publications

(30 reference statements)

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“…Fe‐complexes 45 and 46 were supported on MWCNTs through π–π interactions and the resulting hybrid displayed a high activity in the polymerization of ethylene . Catalyst 45 afforded a productivity of up to 10 4 kg of polyethylene per mol h of iron complex, comparable to that of the most efficient systems reported in the literature, which was even better than those achieved with the unsupported complexes.…”

Section: Carbon Nanotubes‐based Catalystsmentioning

confidence: 77%

Modified Nanocarbons for Catalysis

2018

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Nanocarbons represent useful scaffolds in the preparation of last generation nanostructured catalysts, and their chemical functionalization through covalent or non‐covalent modification is becoming an important tool for introducing well‐distributed anchoring points and, in the meantime, could be the first step toward the assembling of hybrid nanostructured materials with a hierarchical order. In this Review are reported synthesis and catalytic applications of chemically modified nanocarbons such as fullerene, carbon nanotubes, graphene, nanohorns and nanodiamonds in organocatalytic and metal‐based (metal nanoparticles, organometallic complexes) reactions, covering major chemical reactions encompassing, the oxidation of alcohols, aldehydes, olefins, and silanes, hydrogenation reactions of aldehydes, ketones, and alkenes, dehydrogenative coupling of silanes, C−C coupling reactions, epoxidation of alkenes, CO2 fixation into cyclic carbonates, and asymmetric reactions, among others.

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Section: Carbon Nanotubes‐based Catalystsmentioning

confidence: 77%

Modified Nanocarbons for Catalysis

2018

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“…Extended aromatic moieties such as pyrenyl group has been widely explored for immobilization of molecules on graphitic carbons based on the strong π-π interaction between them ( Fig. 2a) [61][62][63][64][65]. Especially, a Diels-Alder adduct of pentacene has optimal dimension with the curvature of single-wall carbon nanotubes (CNTs), thus forms tweezer-like binding (Fig.…”

Section: Non-covalent Immobilizationmentioning

confidence: 99%

Immobilization of molecular catalysts for artificial photosynthesis

Whang

2020

Nano Convergence

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Artificial photosynthesis offers a way of producing fuels or high-value chemicals using a limitless energy source of sunlight and abundant resources such as water, CO2, and/or O2. Inspired by the strategies in natural photosynthesis, researchers have developed a number of homogeneous molecular systems for photocatalytic, photoelectrocatalytic, and electrocatalytic artificial photosynthesis. However, their photochemical instability in homogeneous solution are hurdles for scaled application in real life. Immobilization of molecular catalysts in solid supports support provides a fine blueprint to tackle this issue. This review highlights the recent developments in (i) techniques for immobilizing molecular catalysts in solid supports and (ii) catalytic water splitting, CO2 reduction, and O2 reduction with the support-immobilized molecular catalysts. Remaining challenges for molecular catalyst-based devices for artificial photosynthesis are discussed in the end of this review.

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“…Sun, Durand, and coworkers reported a Fe(II)‐based noncovalently immobilized catalyst for ethylene polymerization (Scheme a) . 2,6‐Bis(arylimino)pyridine ligand tagged with a pyrene incorporated Fe(II)Cl 2 to give a distorted square‐pyramidal complex 5 , which was anchored onto MWNTs by π‐π stacking.…”

Section: Noncovalent Immobilization Of Active Catalysts Onto Cntsmentioning

confidence: 99%

Strategic Immobilization of Molecular Catalysts onto Carbon Nanotubes via Noncovalent Interaction for Catalytic Organic Transformations

Kumagai

Shibasaki

2016

Israel Journal of Chemistry

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Since their discovery, carbon nanotubes (CNTs) continue to attract growing interest from scientists in a wide range of fields, likely due to their fascinating nanoarchitecture as well as their electronic and physical properties. From the viewpoint of synthetic chemistry, the chemical and physical stability, high surface area, and π‐stacking nature of CNTs are attractive features for their application as solid supports for molecular catalysts. The chemical functionalization of CNTs has been explored for various applications, including covalent and noncovalent grafting of molecular catalysts. Although noncovalent grafting provides less stable immobilized catalysts compared with covalently grafted hybrid molecular catalysts and CNTs, the preparation protocol is expeditious and repetitive use of the catalysts is well demonstrated, confirming their potential broad utility in synthetic organic chemistry.

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Ethylene Polymerization Catalyzed by Pyrene‐Tagged Iron Complexes: The Positive Effect of π‐Conjugation and Immobilization on Multiwalled Carbon Nanotubes

Cited by 20 publications

References 83 publications

Modified Nanocarbons for Catalysis

Modified Nanocarbons for Catalysis

Immobilization of molecular catalysts for artificial photosynthesis

Strategic Immobilization of Molecular Catalysts onto Carbon Nanotubes via Noncovalent Interaction for Catalytic Organic Transformations

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