Recyclable Fenton-like catalyst based on zeolite Y supported ultrafine, highly-dispersed Fe2O3 nanoparticles for removal of organics under mild conditions

2019 ◽  
Vol 30 (2) ◽  
pp. 324-330 ◽  
Author(s):  
Xuanyu Yang ◽  
Xiaowei Cheng ◽  
Ahmed A. Elzatahry ◽  
Jinyang Chen ◽  
Abdulaziz Alghamdi ◽  
...  
Keyword(s):  
Zeolite Y ◽  
Fe2o3 Nanoparticles ◽  
Mild Conditions ◽  
Highly Dispersed

Pd/APN-Mn(BTC) as novel, highly efficient, and recyclable catalyst for Suzuki–Miyaura cross coupling reaction

2020 ◽  
Vol 98 (8) ◽  
pp. 445-452
Author(s):  
Hamid Aliyan ◽  
Razieh Fazaeli
Keyword(s):  
Palladium Nanoparticles ◽  
Metal Organic Framework ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Analytical Techniques ◽  
Mild Conditions ◽  
Cross Coupling Reaction ◽  
Highly Dispersed ◽  
Metal Organic ◽  
Adsorption Desorption

A novel, heterogeneous, and bifunctional metal organic framework containing palladium and manganese, Pd/APN-Mn(BTC), has been prepared and completely characterized using FTIR, XRD, SEM-EDS, N2 adsorption–desorption, TG-DTG, NH3-TPD, and ICP analytical techniques. The APN-Mn(BTC) framework has been shown to be a useful platform for the stabilization and support of palladium nanoparticles (Pd NPs). Very effective catalytic activity has been exhibited by the highly dispersed Pd particles, Pd-NPs/APN-Mn(BTC), in the Suzuki–Miyaura cross-coupling reaction with reasonable to excellent reaction yields under mild conditions in H2O–ethanol solvent.

Synthesis of Highly Dispersed Pt Catalysts on MWCNTs via Hydrolytic Deposition without Preliminary Modification of the Support

2014 ◽  
Vol 1040 ◽  
pp. 399-404 ◽  
Author(s):  
Igor I. Ovchinnikov ◽  
Mariya A. Shuvaeva ◽  
Vladimir L. Kuznetsov ◽  
Alexander S. Lisitsyn
Keyword(s):  
Pt Nanoparticles ◽  
Bet Surface Area ◽  
Carbon Surface ◽  
Pt Catalysts ◽  
Mild Conditions ◽  
Highly Dispersed ◽  
Multi Walled Carbon Nanotubes ◽  
Wetting Agents ◽  
Walled Carbon Nanotubes ◽  
Hydrolysis Of

Here we report that ethylene-derived multi-walled carbon nanotubes (MWCNTs) can be successfully used in the “as prepared” form for the synthesis of Pt/MWCNTs catalysts in aqueous solutions without the need in special wetting agents or specific treatments. The MWCNTs strongly accelerate the hydrolysis of metal precursor, thereby allowing rapid deposition of Pt oxide under mild conditions. Upon reduction, Pt nanoparticles with uniform distribution over the carbon surface can be obtained, the particle size (2-5 nm) being dependent on BET surface area of MWCNTs (120-350 m2/g) and Pt loading (5-30 wt.% of Pt relative to MWCNTs).

Preparation of highly dispersed copper oxide by thermal destruction of binuclear CuII monofluoroacetate in zeolite Y cavities

2000 ◽  
Vol 49 (8) ◽  
pp. 1365-1368
Author(s):  
A. I. Boltalin ◽  
E. E. Knyazeva ◽  
E. A. Zhilinskaya ◽  
D. Courcot ◽  
A. Aboukais ◽  
...  
Keyword(s):  
Copper Oxide ◽  
Thermal Destruction ◽  
Zeolite Y ◽  
Highly Dispersed

Highly dispersed ultrafine palladium nanoparticles encapsulated in a triazinyl functionalized porous organic polymer as a highly efficient catalyst for transfer hydrogenation of aldehydes

2018 ◽  
Vol 6 (37) ◽  
pp. 18242-18251 ◽  
Author(s):  
Jin Yang ◽  
Man Yuan ◽  
Dan Xu ◽  
Hong Zhao ◽  
Yangyang Zhu ◽  
...  
Keyword(s):  
Palladium Nanoparticles ◽  
Catalytic Reduction ◽  
Aromatic Aldehydes ◽  
Transfer Hydrogenation ◽  
Organic Polymer ◽  
Efficient Catalyst ◽  
Porous Organic Polymer ◽  
Mild Conditions ◽  
Highly Dispersed ◽  
Organic Pores

A stable Pd@TP-POP catalyst with highly dispersed ultrafine Pd NPs confined in its organic pores was fabricated for catalytic reduction of 4-nitrophenol and transfer hydrogenation of aromatic aldehydes under very mild conditions.

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