Au–Pd bimetallic nanoparticles supported on a high nitrogen-rich ordered mesoporous carbon as an efficient catalyst for room temperature Ullmann coupling of aryl chlorides in aqueous media

2018 ◽  
Vol 54 (52) ◽  
pp. 7155-7158 ◽  
Author(s):  
Babak Karimi ◽  
Hossein Barzegar ◽  
Hojatollah Vali
Keyword(s):  
Mesoporous Carbon ◽  
Room Temperature ◽  
Bimetallic Nanoparticles ◽  
Aqueous Media ◽  
Coupling Reaction ◽  
Efficient Catalyst ◽  
Aryl Chlorides ◽  
Ordered Mesoporous ◽  
Pd Alloy ◽  
Ullmann Coupling

An ionic liquid derived highly nitrogen-rich mesoporous carbon supported Au–Pd alloy was found to be an efficient and recyclable catalyst for the Ullmann coupling reaction of various aryl chlorides at room temperature.

An operationally simple green procedure for the synthesis of dihydropyrimido[4,5-d]pyrimidinetriones using CuI nanoparticles as a highly efficient catalyst

2015 ◽  
Vol 70 (3) ◽  
pp. 171-176 ◽  
Author(s):  
Shahrzad Abdolmohammadi ◽  
Maryam Afsharpour
Keyword(s):  
Room Temperature ◽  
Aqueous Media ◽  
Coupling Reaction ◽  
Aromatic Aldehydes ◽  
Significant Loss ◽  
Efficient Catalyst ◽  
Nano Crystalline ◽  
Simple Protocol ◽  
High Yields ◽  
Green Procedure

AbstractA green, efficient and simple protocol was developed for the synthesis of dihydropyrimido[4,5-d]pyrimidinetrione derivatives via a coupling reaction of 6-aminouracils, aromatic aldehydes and urea in aqueous media in the presence of nano-crystalline CuI at room temperature. The products were obtained in high yields. CuI nanoparticles can be recycled three times without significant loss of catalytic activity.

An easily prepared palladium-hydrogel nanocomposite catalyst for C–C coupling reactions

2014 ◽  
Vol 2 (44) ◽  
pp. 18952-18958 ◽  
Author(s):  
Mitasree Maity ◽  
Uday Maitra
Keyword(s):  
Palladium Nanoparticles ◽  
Room Temperature ◽  
Coupling Reaction ◽  
Coupling Reactions ◽  
Sodium Cyanoborohydride ◽  
Efficient Catalyst ◽  
Suzuki Coupling Reaction ◽  
Reaction In Water ◽  
Hydrogel Nanocomposite

Palladium nanoparticles were efficiently prepared in situ by sodium cyanoborohydride reduction of Pd(ii) at room temperature using calcium-cholate hydrogel fibers as templates. The PdNPs self-organize on the gel fibers, which supports the controlled growth as well as stabilization of PdNPs. The hybrid xerogel was used as an efficient catalyst for the Suzuki coupling reaction in water.

N-doped ordered mesoporous carbon as a high performance anode material in sodium ion batteries at room temperature

RSC Advances ◽  
2014 ◽  
Vol 4 (107) ◽  
pp. 62673-62677 ◽  
Author(s):  
Zhiguang Wang ◽  
Yueming Li ◽  
Xiao-Jun Lv
Keyword(s):  
Electrochemical Performance ◽  
Anode Material ◽  
Mesoporous Carbon ◽  
High Performance ◽  
Room Temperature ◽  
Ordered Mesoporous Carbon ◽  
Sodium Ion ◽  
Template Method ◽  
Sodium Ion Batteries ◽  
Ordered Mesoporous

N-doped ordered mesoporous carbon preparedviaa template method showed improved electrochemical performance as an anode material in sodium ion batteries.

scholarly journals A New Heterogeneous Catalyst Obtained via Supramolecular Decoration of Graphene with a Pd2+ Azamacrocyclic Complex

Molecules ◽  
2019 ◽  
Vol 24 (15) ◽  
pp. 2714 ◽  
Author(s):  
Matteo Savastano ◽  
Paloma Arranz-Mascarós ◽  
Maria Paz Clares ◽  
Rafael Cuesta ◽  
Maria Luz Godino-Salido ◽  
...  
Keyword(s):  
Heterogeneous Catalyst ◽  
Self Assembly ◽  
Room Temperature ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Assembly Process ◽  
Efficient Catalyst ◽  
Mild Conditions ◽  
Cross Coupling Reaction ◽  
Green Procedure

A new G-(H2L)-Pd heterogeneous catalyst has been prepared via a self-assembly process consisting in the spontaneous adsorption, in water at room temperature, of a macrocyclic H2L ligand on graphene (G) (G + H2L = G-(H2L)), followed by decoration of the macrocycle with Pd2+ ions (G-(H2L) + Pd2+ = G-(H2L)-Pd) under the same mild conditions. This supramolecular approach is a sustainable (green) procedure that preserves the special characteristics of graphene and furnishes an efficient catalyst for the Cu-free Sonogashira cross coupling reaction between iodobenzene and phenylacetylene. Indeed, G-(H2L)-Pd shows an excellent conversion (90%) of reactants into diphenylacetylene under mild conditions (50 °C, water, aerobic atmosphere, 14 h). The catalyst proved to be reusable for at least four cycles, although decreasing yields down to 50% were observed.

Selenium-Infused Ordered Mesoporous Carbon for Room-Temperature All-Solid-State Lithium–Selenium Batteries with Ultrastable Cyclability

2020 ◽  
Vol 12 (14) ◽  
pp. 16541-16547
Author(s):  
Qiang Zhang ◽  
Liangting Cai ◽  
Gaozhan Liu ◽  
Qihua Li ◽  
Miao Jiang ◽  
...  
Keyword(s):  
Solid State ◽  
Mesoporous Carbon ◽  
Room Temperature ◽  
Ordered Mesoporous Carbon ◽  
Ordered Mesoporous
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