scholarly journals Organometallic control at the nanoscale: a new, one-pot method to decorate a magnetic nanoparticle surface with noble metal atoms

2010 ◽  
Vol 46 (14) ◽  
pp. 2453 ◽  
Author(s):  
Nabil Atamena ◽  
Diana Ciuculescu ◽  
Gilles Alcaraz ◽  
Alevtina Smekhova ◽  
Fabrice Wilhelm ◽  
...  
Keyword(s):  
Noble Metal ◽  
Magnetic Nanoparticle ◽  
One Pot ◽  
Nanoparticle Surface ◽  
Metal Atoms

Silica sulfuric acid magnetic nanoparticle: an efficient and ecofriendly catalyst for synthesis of spiro[2-amino-4H-pyran-oxindole]s

2015 ◽  
Vol 93 (5) ◽  
pp. 546-549 ◽  
Author(s):  
Ali Reza Karimi ◽  
Meysam Sourinia ◽  
Zeinab Dalirnasab ◽  
Marzie Karimi
Keyword(s):  
Sulfuric Acid ◽  
Magnetic Nanoparticle ◽  
Ultrasound Irradiation ◽  
Significant Loss ◽  
Silica Sulfuric Acid ◽  
One Pot ◽  
External Magnet ◽  
Three Component Reaction ◽  
The One ◽  
High Yields

Silica sulfuric acid magnetic nanoparticles efficiently catalyze the one-pot, three-component reaction of isatins and malononitrile with dimedone, 1,3-dimethylbarbituric acid or 4-hydroxycoumarin in EtOH–H2O to afford the corresponding spiro[2-amino-4H-pyran-oxindole] derivatives in high yields under ultrasound irradiation at 60 °C. The heterogeneous nanocatalyst could be recovered easily from the reaction mixture using an external magnet and reused many times without significant loss of its catalytic activity.

An innovative Au-CdS/ZnS-RGO architecture for efficient photocatalytic hydrogen evolution

2018 ◽  
Vol 6 (7) ◽  
pp. 2895-2899 ◽  
Author(s):  
Shuangshuang Kai ◽  
Baojuan Xi ◽  
Xiaolei Liu ◽  
Lin Ju ◽  
Peng Wang ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Hydrogen Evolution ◽  
Noble Metal ◽  
Au Nanoparticles ◽  
One Pot ◽  
Hole Transfer ◽  
Photocatalytic Hydrogen Evolution ◽  
Semiconductor Junction ◽  
Electron Transportation

An innovative CdS/ZnS-RGO hybrid is synthesizedviaan one-pot hydrothermal method. The further introduction of Au nanoparticles enables the composite with the merits of heterostructured semiconductor/semiconductor junction benefiting the hole transfer, as well as graphene and noble metal favorable for electron transportation.

scholarly journals Cu(I)/Ionic Liquids Promote the Conversion of Carbon Dioxide into Oxazolidinones at Room Temperature

Molecules ◽  
2019 ◽  
Vol 24 (7) ◽  
pp. 1241 ◽  
Author(s):  
Jikuan Qiu ◽  
Yue Zhao ◽  
Yuling Zhao ◽  
Huiyong Wang ◽  
Zhiyong Li ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Noble Metal ◽  
Room Temperature ◽  
Ambient Pressure ◽  
Sustainable Chemistry ◽  
One Pot ◽  
Propargylic Alcohols ◽  
Noble Metal Catalysts ◽  
Three Component Reaction ◽  
Carbon Dioxide Co2

Recently, the efficient chemical fixation of carbon dioxide (CO2) into high value chemicals without using noble metal catalysts has become extremely appealing from the viewpoint of sustainable chemistry. In this work, a one-pot three component reaction of propargylic alcohols, anines and CO2 that can proceed in an atom economy and environmentally benign manner by combination of CuI and tetrabutylphosphonium imidazol ([P4444][Im]) as a catalyst was described. Catalysis studies indicate that this catalytic system is an effective catalyst for the conversion of CO2 into oxazolidinones at room temperature and ambient pressure without any solvent. The results provide a useful way to design novel noble metal-free catalyst systems for the transformation of CO2 into other valuable compounds.

ChemInform Abstract: ISOLATED NOBLE METAL ATOMS IN A NEON MATRIX

1982 ◽  
Vol 13 (33) ◽  
Author(s):  
S. OSSICINI ◽  
F. FORSTMANN
Keyword(s):  
Noble Metal ◽  
Metal Atoms

Hydroxyl-rich C-dots synthesized by a one-pot method and their application in the preparation of noble metal nanoparticles

2015 ◽  
Vol 51 (33) ◽  
pp. 7164-7167 ◽  
Author(s):  
Qiujun Lu ◽  
Jianhui Deng ◽  
Yuxin Hou ◽  
Haiyan Wang ◽  
Haitao Li ◽  
...  
Keyword(s):  
Metal Nanoparticles ◽  
Noble Metal ◽  
Noble Metal Nanoparticles ◽  
One Pot ◽  
Stabilizing Agent

Hydro-rich C-dots were used as both the reducing and stabilizing agent in the preparation of noble metal nanoparticles (AuNPs, AgNPs and Au@AgNPs) for the detection of glucose.

scholarly journals One-pot multicomponent synthesis of thieno[2,3-b]indoles catalyzed by a magnetic nanoparticle-supported [Urea]4[ZnCl2] deep eutectic solvent

RSC Advances ◽  
2020 ◽  
Vol 10 (16) ◽  
pp. 9663-9671 ◽  
Author(s):  
The Thai Nguyen ◽  
Phuong Hoang Tran
Keyword(s):  
Multicomponent Reaction ◽  
Magnetic Nanoparticle ◽  
Deep Eutectic Solvent ◽  
Multicomponent Synthesis ◽  
One Pot ◽  
Green Catalyst

We have developed the synthesis of thieno[2,3-b]indole dyes via a multicomponent reaction of cheap and available reagents using a magnetic nanoparticle-supported [Urea]4[ZnCl2] deep eutectic solvent as a green catalyst.

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