Catalytic Performance of a Magnetic Core-Shell Iron(II) C-Scorpionate under Unconventional Oxidation Conditions

For the first time, herein is reported the use of a magnetic core-shell support for a C-scorpionate metallic complex. The prepared hybrid material, that consists on the C-scorpionate iron(II) complex [FeCl2{κ3-HC(pz)3}] (pz, pyrazolyl) immobilized at magnetic core-shell particles (Fe3O4/TiO2), was tested as catalyst for the oxidation of secondary alcohols using the model substrate 1-phenylethanol. Moreover, the application of alternative energy sources (e.g., ultrasounds, microwaves, mechanical or thermal) for the peroxidative alcohol oxidation using the magnetic heterogenized iron(II) scorpionate led to different/unusual outcomes that are presented and discussed.

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Hierarchical hollow nanostructured core@shell recyclable catalysts γ-Fe2O3@LDH@Au25-x for highly efficient alcohol oxidation

Green Chemistry ◽

10.1039/c6gc01290f ◽

2016 ◽

Vol 18 (21) ◽

pp. 5900-5914 ◽

Cited By ~ 28

Author(s):

Shuangtao Yin ◽

Jin Li ◽

Hui Zhang

Keyword(s):

Molecular Oxygen ◽

Aerobic Oxidation ◽

Alcohol Oxidation ◽

Catalytic Performance ◽

Magnetic Core ◽

Core Shell ◽

Precursor Method ◽

Highly Efficient ◽

Recyclable Catalysts

Magnetically recyclable 3D hierarchical hollow nanostructured Au25 nanocluster catalysts, assembled by an Au25Capt18 precursor method, exhibit an extraordinary catalytic performance for the aerobic oxidation of alcohol by molecular oxygen upon strong Au25NCs–LDH–magnetic core synergy.

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Novel conductive core–shell particles of elastomeric nanoparticles coated with polypyrrole

RSC Advances ◽

10.1039/c5ra18955a ◽

2015 ◽

Vol 5 (120) ◽

pp. 98904-98909 ◽

Cited By ~ 3

Author(s):

Jiangru Zhang ◽

Guicun Qi ◽

Xiang Wang ◽

Binghai Li ◽

Zhihai Song ◽

...

Keyword(s):

Shell Structure ◽

Oxidative Polymerization ◽

Core Shell ◽

Conductive Particle ◽

Core Shell Structure ◽

Shell Particles ◽

First Time

For the first time, an ultrafine conductive particle with core–shell structure, acrylonitrile-butadiene elastomeric nanoparticle (NBR-ENP) coated with polypyrrole (PPy), was prepared by in situ oxidative polymerization.

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Template-assisted nano-patterning of magnetic core–shell particles in gradient fields

Physical Chemistry Chemical Physics ◽

10.1039/c4cp01563k ◽

2014 ◽

Vol 16 (26) ◽

pp. 13306-13317 ◽

Cited By ~ 19

Author(s):

Xiaozheng Xue ◽

Edward P. Furlani

Keyword(s):

Magnetic Core ◽

Core Shell ◽

Soft Magnetic ◽

Gradient Fields ◽

Shell Particles ◽

Feature Resolution ◽

Nano Patterning

Controlling the assembly of colloidal magnetic core–shell particles into patterned monolayer structures with nanoscale feature resolution using soft-magnetic template elements.

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Ceria/silicon carbide core–shell materials prepared by miniemulsion technique

Beilstein Journal of Nanotechnology ◽

10.3762/bjnano.2.67 ◽

2011 ◽

Vol 2 ◽

pp. 638-644 ◽

Cited By ~ 6

Author(s):

Lars Borchardt ◽

Martin Oschatz ◽

Robert Frind ◽

Emanuel Kockrick ◽

Martin R Lohe ◽

...

Keyword(s):

Cross Correlation ◽

Methane Combustion ◽

Correlation Spectroscopy ◽

Core Shell ◽

Particle Sizes ◽

Temperature Programmed Oxidation ◽

Preparation Conditions ◽

Temperature Programmed ◽

Shell Particles ◽

First Time

For the first time we present the synthesis of CeO2/Si(O)C core–shell particles prepared by the miniemulsion technique. The Si(O)C core was obtained by means of a polycarbosilane precursor (SMP10), which was subsequently functionalized with ceria and pyrolyzed to the ceramic. The size of these particles could easily be adjusted by varying the surfactants and the surfactant concentration, or by the addition of comonomers. Hence particle sizes ranged from 100 to 1000 nm, tunable by the preparation conditions. All materials were characterized by photon cross correlation spectroscopy, scanning electron microscopy and elemental mapping investigations. Furthermore, first catalytic tests were carried out by temperature programmed oxidation (TPO) of methane, and the activity of this material in lowering the onset temperature of methane combustion by 262 K was documented.

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Selective Oxidation of Ethane to Acetic Acid Catalyzed by a C-Scorpionate Iron(II) Complex: A Homogeneous vs. Heterogeneous Comparison

Molecules ◽

10.3390/molecules25235642 ◽

2020 ◽

Vol 25 (23) ◽

pp. 5642

Author(s):

Inês A. S. Matias ◽

Ana P. C. Ribeiro ◽

Luísa M. D. R. S. Martins

Keyword(s):

Acetic Acid ◽

Selective Oxidation ◽

Catalytic System ◽

Acid Synthesis ◽

Magnetic Core ◽

Core Shell ◽

Ethane Oxidation ◽

One Pot ◽

Acid Catalyzed ◽

First Time

The direct, one-pot oxidation of ethane to acetic acid was, for the first time, performed using a C-scorpionate complex anchored onto a magnetic core-shell support, the Fe3O4/TiO2/[FeCl2{κ3-HC(pz)3}] composite. This catalytic system, where the magnetic catalyst is easily recovered and reused, is highly selective to the acetic acid synthesis. The performed green metrics calculations highlight the “greeness” of the new ethane oxidation procedure.

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Fabrication of magnetic core shell particles coated with phenylalanine imprinted polymer

Polymer Testing ◽

10.1016/j.polymertesting.2019.02.023 ◽

2019 ◽

Vol 75 ◽

pp. 262-269 ◽

Cited By ~ 5

Author(s):

Saba Gul ◽

Nasrullah Shah ◽

Muhammad Balal Arain ◽

Nida Rahman ◽

Touseef Rehan ◽

...

Keyword(s):

Magnetic Core ◽

Core Shell ◽

Imprinted Polymer ◽

Shell Particles

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Recent Advances in Copper Catalyzed Alcohol Oxidation in Homogeneous Medium

Molecules ◽

10.3390/molecules25030748 ◽

2020 ◽

Vol 25 (3) ◽

pp. 748 ◽

Cited By ~ 4

Author(s):

Telma F. S. Silva ◽

Luísa M. D. R. S. Martins

Keyword(s):

Organic Synthesis ◽

Alternative Energy ◽

Copper Complexes ◽

Homogeneous Medium ◽

Alcohol Oxidation ◽

Short Review ◽

Secondary Alcohols ◽

Alternative Energy Source ◽

Use Of Resources ◽

Oxidation Of Alcohols

The development of sustainable processes and products through innovative catalytic materials and procedures that allow a better use of resources is undoubtedly one of the most significant issues facing researchers nowadays. Environmental and economically advanced catalytic processes for selective oxidation of alcohols are currently focused on designing new catalysts able to activate green oxidants (dioxygen or peroxides) and applying unconventional conditions of sustainable significance, like the use of microwave irradiation as an alternative energy source. This short review aims to provide an overview of the recently (2015–2020) discovered homogeneous aerobic and peroxidative oxidations of primary and secondary alcohols catalyzed by copper complexes, highlighting new catalysts with potential application in sustainable organic synthesis, with significance in academia and industry.

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