scholarly journals Click chemistry promoted by graphene supported copper nanomaterials

2014 ◽  
Vol 50 (97) ◽  
pp. 15374-15377 ◽  
Author(s):  
Ali Shaygan Nia ◽  
Sravendra Rana ◽  
Diana Döhler ◽  
Xavier Noirfalise ◽  
Alice Belfiore ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Click Chemistry ◽  
Heterogeneous Catalyst ◽  
Copper Nanoparticles ◽  
Graphene Nanosheets ◽  
Highly Dispersed

Highly dispersed copper nanoparticles immobilized graphene nanosheets were prepared and used as a recyclable and reusable heterogeneous catalyst with excellent catalytic activity to achieve Cu(i)-catalyzed [3+2] cycloaddition “click” chemistry under both solvent and bulk conditions.

Selective C–C coupling of terminal alkynes under an air atmosphere without base over Cu–NX–C catalysts

2020 ◽  
Vol 44 (48) ◽  
pp. 20993-20998
Author(s):  
Xinxin Xiao ◽  
Yin Xu ◽  
Sangepu Bhavanarushi ◽  
Bin Liu ◽  
Xiaomeng Lv
Keyword(s):  
Catalytic Activity ◽  
Copper Nanoparticles ◽  
Oxidative Coupling ◽  
Terminal Alkynes ◽  
Air Atmosphere ◽  
Highly Dispersed ◽  
Nitrogenated Carbon

Highly dispersed copper nanoparticles supported on mesoporous nitrogenated carbon were synthesized and exhibited superior catalytic activity towards aerobic oxidative coupling of terminal alkynes.

Synthesis and catalytic activity of carbon supported copper nanoparticles for the synthesis of aryl nitriles and 1,2,3-triazoles

RSC Advances ◽  
2015 ◽  
Vol 5 (4) ◽  
pp. 2785-2793 ◽  
Author(s):  
Mahmoud Nasrollahzadeh ◽  
Babak Jaleh ◽  
Parisa Fakhri ◽  
Ali Zahraei ◽  
Esmaeil Ghadery
Keyword(s):  
Catalytic Activity ◽  
Heterogeneous Catalyst ◽  
Copper Nanoparticles ◽  
Triazole Derivatives ◽  
Aryl Nitriles ◽  
Ligand Free

Various substituted aryl nitrile and 1,2,3-triazole derivatives were prepared by using carbon supported copper nanoparticles (C/Cu NPs) as a heterogeneous catalyst under ligand-free conditions, which provided good to excellent yields.

Nitrogen-doped graphene stabilized copper nanoparticles for Huisgen [3+2] cycloaddition “click” chemistry

2019 ◽  
Vol 55 (44) ◽  
pp. 6249-6252 ◽  
Author(s):  
R. V. Siva Prasanna Sanka ◽  
Balaji K. ◽  
Yves Leterrier ◽  
Shyam Pandey ◽  
Monika Srivastava ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Click Chemistry ◽  
Reduced Graphene Oxide ◽  
Heterogeneous Catalyst ◽  
Copper Nanoparticles ◽  
Nitrogen Doped ◽  
Reduced Graphene ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

N-doped reduced graphene oxide stabilized copper nanoparticles are designed as a heterogeneous catalyst for achieving Cu(i)-catalyzed [3+2] cycloaddition “click” chemistry.

scholarly journals Waste Animal Bones as Catalysts for Biodiesel Production; A Mini Review

Catalysts ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 630
Author(s):  
Fayaz Hussain ◽  
Saad Alshahrani ◽  
Muhammad Mujtaba Abbas ◽  
Haris Mahmood Khan ◽  
Asif Jamil ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Heterogeneous Catalyst ◽  
Recent Literature ◽  
Catalyst Preparation ◽  
Biodiesel Production ◽  
Waste Generation ◽  
Preparation Methods ◽  
Eu Legislation ◽  
Animal Bones ◽  
Disposal Cost

Slaughterhouse waste is considered to be an emerging issue because of its disposal cost. As an alternative, it would be a great prospect for the bioeconomy society to explore new usages of these leftover materials. As per food safety rules mentioned by EU legislation, all bone waste generated by slaughterhouses ought to be disposed of by rendering. The huge quantity of worldwide bone waste generation (130 billion kilograms per annum) is an environmental burden if not properly managed. The waste animal bones can be efficiently employed as a heterogeneous catalyst to produce biodiesel. This mini review summarized the recent literature reported for biodiesel generation using waste animal bones derived heterogeneous catalyst. It discusses the sources of bone waste, catalyst preparation methods, particularly calcination and its effects, and important characteristics of bones derived catalyst. It suggests that catalysts extracted from waste animal bones have suitable catalytic activity in transesterification of different oil sources to generate a good quality biodiesel.

scholarly journals Immobilization of an Iridium(I)-NHC-Phosphine Catalyst for Hydrogenation Reactions under Batch and Flow Conditions

Catalysts ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 656
Author(s):  
Henrietta Kovács ◽  
Krisztina Orosz ◽  
Gábor Papp ◽  
Ferenc Joó ◽  
Henrietta Horváth
Keyword(s):  
Catalytic Activity ◽  
Ion Exchange ◽  
Heterogeneous Catalyst ◽  
Aqueous Phase ◽  
Levulinic Acid ◽  
Flow Reactor ◽  
High Catalytic Activity ◽  
Flow Conditions ◽  
Hydrogenation Reactions ◽  
Excellent Selectivity

Na2[Ir(cod)(emim)(mtppts)] (1) with high catalytic activity in various organic- and aqueous-phase hydrogenation reactions was immobilized on several types of commercially available ion-exchange supports. The resulting heterogeneous catalyst was investigated in batch reactions and in an H-Cube flow reactor in the hydrogenation of phenylacetylene, diphenylacetylene, 1-hexyne, and benzylideneacetone. Under proper conditions, the catalyst was highly selective in the hydrogenation of alkynes to alkenes, and demonstrated excellent selectivity in C=C over C=O hydrogenation; furthermore, it displayed remarkable stability. Activity of 1 in hydrogenation of levulinic acid to γ-valerolactone was also assessed.

A copper nitride catalyst for the efficient hydroxylation of aryl halides under ligand-free conditions

2021 ◽  
Author(s):  
Hang Xu ◽  
Sho Yamaguchi ◽  
Takato Mitsudome ◽  
Tomoo Mizugaki
Keyword(s):  
Catalytic Activity ◽  
Heterogeneous Catalyst ◽  
Aryl Halides ◽  
High Catalytic Activity ◽  
Copper Nitride ◽  
Ligand Free

Copper nitride (Cu3N) was used as a heterogeneous catalyst for the hydroxylation of aryl halides under ligand-free conditions. The cubic Cu3N nanoparticles showed high catalytic activity, comparable to those of...

Industrial resin “INDION 130” modified with vanadyl cations as highly efficient heterogeneous catalyst for epoxidation of fatty compounds with TBHP as oxidant

2015 ◽  
Vol 39 (8) ◽  
pp. 5960-5965 ◽  
Author(s):  
Praveen K. Khatri ◽  
Mounika Aila ◽  
Jyoti Porwal ◽  
Savita Kaul ◽  
Suman L. Jain
Keyword(s):  
Catalytic Activity ◽  
Heterogeneous Catalyst ◽  
Cation Exchanger ◽  
Vanadium Catalyst ◽  
Highly Efficient ◽  
Efficient Heterogeneous Catalyst

Cation exchanger INDION 130 modified with vanadyl cations was found to be readily prepared and reusable and exhibited higher catalytic activity than the homogeneous oxo-vanadium catalyst for epoxidation of fatty compounds.

In Situ Generation of Copper Nanoparticles by Rongalite and Their Use as Catalyst for Click Chemistry in Water

2018 ◽  
Vol 3 (48) ◽  
pp. 13759-13764 ◽  
Author(s):  
Soumya Poshala ◽  
Sanjeeva Thunga ◽  
Saikumar Manchala ◽  
Hari Prasad Kokatla
Keyword(s):  
Click Chemistry ◽  
Copper Nanoparticles ◽  
In Situ Generation
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