Application of nickel ferrite and cobalt ferrite magnetic nanoparticles in C–O bond formation: a comparative study between their catalytic activities

Moghaddam, Firouz Matloubi; Tavakoli, Ghazal; Aliabadi, A.

doi:10.1039/c5ra08146g

Cited by 31 publications

(14 citation statements)

References 46 publications

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“…A possible mechanism is proposed for the synthesis of diaryl ether that is consistent with the literature . Firstly, Fe 3 O 4 /CS‐Cu NPs inserts in the aryl halide bond via oxidative addition reaction (I).…”

Section: Resultssupporting

confidence: 73%

Magnetically recyclable nano copper/chitosan in O‐arylation of phenols with aryl halides

Mashhadi

Kassaee

Eidi

2019

Applied Organom Chemis

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Interaction of chitosan (CS) with Fe3O4, followed by embedding Cu nanoparticles (NPs) on the magnetic surface through adsorption of Cu2+, and its reduction to Cuo via NaBH4, offers a reusable efficient catalyst (Fe3O4/CS‐Cu NPs) that is employed in cross‐coupling reactions of aryl halides with phenols, which affords the corresponding diaryl ethers, with good to excellent yields. The catalyst is completely recoverable from the reaction mixture by using an external magnet. It can be reused four times, without significant loss in its catalytic activity.

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Section: Resultssupporting

confidence: 73%

Magnetically recyclable nano copper/chitosan in O‐arylation of phenols with aryl halides

Mashhadi

Kassaee

Eidi

2019

Applied Organom Chemis

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“…38 It possesses similar properties to nickel in terms of catalytic and behavioral aspects. 39 The combination of the aforementioned catalyst with tallates is a promising way to guarantee a high dispersion extent of catalytic agents during the oxidation process, as have been demonstrated in our previous works on iron 40 and manganese tallates. 41 This paper aims to validate our previous finding 40,41 about the utility of using oil-soluble catalysts based on tall oil in the in situ combustion process.…”

Section: Introductionmentioning

confidence: 84%

“…Another metal very effective as nickel and proposed to be used in in situ combustion is cobalt . It possesses similar properties to nickel in terms of catalytic and behavioral aspects . The combination of the aforementioned catalyst with tallates is a promising way to guarantee a high dispersion extent of catalytic agents during the oxidation process, as have been demonstrated in our previous works on iron and manganese tallates …”

Section: Introductionmentioning

confidence: 91%

Comparative Kinetic Study on Heavy Oil Oxidation in the Presence of Nickel Tallate and Cobalt Tallate

et al. 2019

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A remarkable feature of heavy oil oxidation during the in situ combustion process is the difficulty in maintaining combustion front to flow throughout the reservoir. Recent developments suggest the use of catalysts regarding this issue. Previous works have been limited by the catalyst choice. Moreover, many research works have failed to provide a catalyst that meets the requirements of efficiency, low-cost, and positive impact on the surrounding. This paper presents new type of catalysts based on tallate, each combined with nickel and cobalt, respectively, as highly efficient catalysts for the oxidation of heavy oil. We have compared the effect of each catalyst using differential scanning calorimetry to highlight kinetic parameters of each process by the Kissinger method. In addition, we employed thermogravimetric analysis and scanning electron microscopy to investigate the behavior of catalysts during the process. The obtained results showed a similar high efficiency of both precatalysts by decreasing the activation energy of the high-temperature oxidation region, increasing the preexponential factors of both high- and low-temperature oxidation regions, and increasing their reaction rate constants. Moreover, the precatalysts used transformed in situ to nanoparticles during the heavy oil oxidation process.

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“…Material science becomes a promising field of nanoscience, due its remarkable applications in the research. It covers wide range of research applications such as sensors [1][2][3], adsorption, photocatalysis, biosensors, solar cells, conducting material, drug distribution, photovoltaic, medicinal, agricultural and catalytical applications, sultriness sensors [4][5][6][7][8][9][10].Nowadays, enormous incrimination in the level of pollution and industrial hazards is the major threat for environment. The evolution of toxic substances and gases from industries as well as from conveyances are the major sources of pollutant gases.…”

Section: Introductionmentioning

confidence: 99%

Nanocrystalline-modified nickel ferrite films: an effective sensor for industrial and environmental gas pollutant detection

Koli¹,

Kapadnis²,

Deshpande³

2019

J Nanostruct Chem

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The inverse spinel nanocrystalline pure and doped nickel ferrite particles were synthesized by co-precipitation method. The thick films of both pure and doped nickel ferrite nanoparticles were prepared by coating the material on glass substrate via screen printing method. The XRD was used to confirm cubic, crystalline nickel ferrites. The scanning electron microscopy confirms nanosized, cubic nanoparticles of nickel ferrite, and their morphology was investigated. The energy-dispersive spectroscopy was used to comprise elemental composition for pure and doped ferrites. Transmission electron microscopy was attributed for investigation of surface morphology, crystal structure identification of nickel ferrites. The FT-IR was used to find the vibrational frequencies, symmetric, asymmetric stretching and bending modes of metal oxide linkage. The thick films of nickel ferrite were employed for sensing phenomenon of gases such as LPG, NO 2 , CH 3-OH, C 2 H 5-OH, NH 3 and petrol vapours. The pure nickel ferrite showed excellent results for ammonia and nitrogen dioxide gases up to 90.42 and 86.42, respectively. Manganese-and cobalt-doped ferrites were excellent for ammonia and petrol vapours. Modified nickel ferrite effect of dopants cobalt and manganese was investigated. Pure and doped ferrites showed excellent response and recovery for ammonia, NO 2 , petrol vapours and LPG gases.

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Application of nickel ferrite and cobalt ferrite magnetic nanoparticles in C–O bond formation: a comparative study between their catalytic activities

Cited by 31 publications

References 46 publications

Magnetically recyclable nano copper/chitosan in O‐arylation of phenols with aryl halides

Magnetically recyclable nano copper/chitosan in O‐arylation of phenols with aryl halides

Comparative Kinetic Study on Heavy Oil Oxidation in the Presence of Nickel Tallate and Cobalt Tallate

Nanocrystalline-modified nickel ferrite films: an effective sensor for industrial and environmental gas pollutant detection

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