Synthesis of Bi(III) Immobilized on Carboxyl‐Terminated Triazine Dendrimer Stabilized Magnetic Nanoparticles: Improvement of Catalytic Activity for Synthesis of Indol‐3‐yl Acrylates

2020 ◽  
Vol 5 (26) ◽  
pp. 7840-7848
Author(s):  
Beheshteh Asadi ◽  
Iraj Mohammadpoor‐Baltork ◽  
Valiollah Mirkhani ◽  
Shahram Tangestaninejad ◽  
Majid Moghadam
Keyword(s):  
Catalytic Activity ◽  
Magnetic Nanoparticles

scholarly journals Magnetization of graphene oxide nanosheets using nickel magnetic nanoparticles as a novel support for the fabrication of copper as a practical, selective, and reusable nanocatalyst in C–C and C–O coupling reactions

RSC Advances ◽  
2021 ◽  
Vol 11 (42) ◽  
pp. 25867-25879
Author(s):  
Parisa Moradi ◽  
Maryam Hajjami
Keyword(s):  
Graphene Oxide ◽  
Catalytic Activity ◽  
Magnetic Nanoparticles ◽  
Coupling Reactions ◽  
Graphene Oxide Nanosheets ◽  
Magnetic Graphene Oxide ◽  
Diaryl Ethers ◽  
Magnetic Graphene

Catalytic activity of supported copper on magnetic graphene oxide was investigated as a selective and reusable nanocatalyst in the synthesis of diaryl ethers and biphenyls.

Magnetic Nanoparticles Supported Acidic Ionic Liquid as a Highly Active and Reusable Catalyst for Esterification

2016 ◽  
Vol 852 ◽  
pp. 485-488 ◽  
Author(s):  
Qiang Zhang ◽  
Xin Zhao ◽  
Xue Hua Zhu ◽  
Ji Hang Li
Keyword(s):  
Ionic Liquid ◽  
Catalytic Activity ◽  
Magnetic Nanoparticles ◽  
Catalytic Performance ◽  
Significant Loss ◽  
Reusable Catalyst ◽  
Hydrogen Sulfate ◽  
External Magnet ◽  
Acidic Ionic Liquid ◽  
Highly Active

A magnetic nanoparticles supported dual acidic ionic liquid catalyst was prepared via anchoring 3-sulfobutyl-1-(3-propyltriethoxysilane) imidazolium hydrogen sulfate onto the surface of silica-coated Fe3O4 nanoparticles. And this novel supported acidic ionic liquid catalyst showed good catalytic performance in esterification. More importantly, the catalyst could be easily recovered by an external magnet and reused six times without significant loss of catalytic activity.

scholarly journals Magnetically separable Ru-containing catalysts in supercritical deoxygenation of fatty acids

2020 ◽  
Vol 92 (6) ◽  
pp. 817-826
Author(s):  
Antonina A. Stepacheva ◽  
Yury V. Lugovoy ◽  
Oleg V. Manaenkov ◽  
Alexander I. Sidorov ◽  
Valentina G. Matveeva ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Magnetic Properties ◽  
Catalytic Activity ◽  
Magnetic Nanoparticles ◽  
Stearic Acid ◽  
Ruthenium Oxide ◽  
Hypercrosslinked Polystyrene ◽  
High Stearic Acid ◽  
Magnetically Separable ◽  
Effect Of Support

AbstractIn the current paper, the possibility of the use of magnetically separable catalysts containing ruthenium oxide species in the supercritical deoxygenation of stearic acid for producing of the second generation of biodiesel is reported. Three different supports (silica, ceria, and hypercrosslinked polystyrene) were used for the stabilization of magnetic nanoparticles (MNPs) and Ru-containing particles. The effect of support on the magnetic properties as well as the catalytic activity of the obtained systems was studied. All synthesized catalysts were shown to provide high stearic acid conversion (up to 95 %). The highest yield of C17+ hydrocarbons (up to 86 %) was observed while using the Ru–Fe3O4-HPS system. Ru–Fe3O4-HPS was characterized by the high values of the specific surface area (364 m2/g) and saturation magnetization (4.5 emu/g). The chosen catalytic system was found to maintain its catalytic activity for a minimum of 10 consecutive cycles.

Facile one-pot phytosynthesis of magnetic nanoparticles using potato extract and their catalytic activity

2016 ◽  
Vol 68 (7-8) ◽  
pp. 796-804 ◽  
Author(s):  
Foad Buazar ◽  
Mina H. Baghlani-Nejazd ◽  
Mohamad Badri ◽  
Mehdi Kashisaz ◽  
Ali Khaledi-Nasab ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Magnetic Nanoparticles ◽  
One Pot ◽  
Potato Extract

scholarly journals Immobilized antimony species on magnetite: a novel and highly efficient magnetically reusable nanocatalyst for direct and gram-scale reductive-coupling of nitroarenes to azoarenes

RSC Advances ◽  
2019 ◽  
Vol 9 (23) ◽  
pp. 13112-13121 ◽  
Author(s):  
Behzad Zeynizadeh ◽  
Fariba Faraji
Keyword(s):  
Catalytic Activity ◽  
Magnetic Nanoparticles ◽  
Nitro Compounds ◽  
Reductive Coupling ◽  
One Pot ◽  
Highly Efficient ◽  
Aromatic Nitro Compounds ◽  
Aromatic Nitro

In this study, magnetic nanoparticles of Fe3O4@SbFx were synthesized. Then, the catalytic activity of Fe3O4@SbFx MNPs was highlighted by one-pot reductive-coupling of aromatic nitro compounds to the corresponding azoarene materials with NaBH4.

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