A functionalized graphene oxide and nano-zeolitic imidazolate framework composite as a highly active and reusable catalyst for [3 + 3] formal cycloaddition reactions

2015 ◽  
Vol 3 (28) ◽  
pp. 14779-14785 ◽  
Author(s):  
Yongyi Wei ◽  
Zhongkai Hao ◽  
Fang Zhang ◽  
Hexing Li
Keyword(s):  
Graphene Oxide ◽  
Reusable Catalyst ◽  
Cycloaddition Reactions ◽  
Functionalized Graphene ◽  
Zeolitic Imidazolate Framework ◽  
Efficient Catalyst ◽  
Functionalized Graphene Oxide ◽  
Highly Active

A SO3H-functionalized graphene oxide and nano-ZIF-8 composite was used as an efficient catalyst for [3 + 3] formal cycloaddition reactions with pyranyl heterocycles.

Grafting of a rhenium-oxo complex on Schiff base functionalized graphene oxide: an efficient catalyst for the oxidation of amines

2014 ◽  
Vol 43 (21) ◽  
pp. 8054 ◽  
Author(s):  
Praveen K. Khatri ◽  
Shivani Choudhary ◽  
Raghuvir Singh ◽  
Suman L. Jain ◽  
Om P. Khatri
Keyword(s):  
Schiff Base ◽  
Graphene Oxide ◽  
Functionalized Graphene ◽  
Efficient Catalyst ◽  
Functionalized Graphene Oxide

Ionic liquid-functionalized graphene oxide as an efficient support for the chiral salen Mn(iii) complex in asymmetric epoxidation of unfunctionalized olefins

2015 ◽  
Vol 5 (4) ◽  
pp. 2092-2102 ◽  
Author(s):  
Weiguo Zheng ◽  
Rong Tan ◽  
Shenfu Yin ◽  
Yaoyao Zhang ◽  
Guangwu Zhao ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Graphene Oxide ◽  
Asymmetric Epoxidation ◽  
Reusable Catalyst ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide ◽  
Highly Efficient

Chiral salen Mn(iii) complex covalently grafted on IL-functionalized GO sheet, was a highly efficient, universal and reusable catalyst for asymmetric epoxidation of unfunctionalized olefins using aqueous NaOCl as an oxidant.

A nitrogen and sulphur functionalized graphene oxide–palladium nanoparticle hybrid catalyst for an efficient Heck coupling

RSC Advances ◽  
2016 ◽  
Vol 6 (78) ◽  
pp. 74961-74967 ◽  
Author(s):  
Chanchal Premi ◽  
Nidhi Jain
Keyword(s):  
Graphene Oxide ◽  
Functionalized Graphene ◽  
Heck Coupling ◽  
Hybrid Catalyst ◽  
Palladium Nanoparticle ◽  
Efficient Catalyst ◽  
Functionalized Graphene Oxide

A nanohybrid of Pd on GO functionalized with N and S has been fabricated, and demonstrated as an efficient catalyst for Heck coupling with a substantially low catalytic loading (0.02 mol%).

Efficient reduction of nitroarenes in water catalyzed by reusable Pd nanoparticles immobilized on chitosan-functionalized graphene oxide

2019 ◽  
Vol 97 (3) ◽  
pp. 191-196 ◽  
Author(s):  
Mosayeb Sarvestani ◽  
Roya Azadi
Keyword(s):  
Graphene Oxide ◽  
Pd Nanoparticles ◽  
Nitro Compounds ◽  
Functionalized Graphene ◽  
Efficient Catalyst ◽  
Environmental Friendliness ◽  
Functionalized Graphene Oxide ◽  
Efficient Reduction ◽  
Multiple Cycles ◽  
Aromatic Nitro

Graphene oxide was functionalized with chitosan for palladium immobilization (GO–Chit–Pd), which was used as an efficient catalyst for the reduction of aromatic nitro compounds using sodium borohydride in water. To achieve the best catalytic efficacy, various parameters such as temperature, solvent, mole ratio of hydrogen sources, and the amount of catalyst were optimized. The method has been applied to the reduction of a broad range of nitroarenes with different properties. The easy purification, convenient operation, environmental friendliness, and high product yields render this method viable for use. The nanocatalyst can be easily separated and efficiently recovered and reused for multiple cycles without appreciable loss in its catalytic activity.

Preparation of a Pickering emulsion by modification of an amine-functionalized graphene oxide surface with organosilane: efficient catalyst for the Knoevenagel condensation of malononitrile with aldehydes at mild temperature

2020 ◽  
Vol 44 (15) ◽  
pp. 5995-6002 ◽  
Author(s):  
Bingxu Qian ◽  
Fei Wang ◽  
Dongsheng Li ◽  
Yongxin Li ◽  
Bo Zhang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Knoevenagel Condensation ◽  
Pickering Emulsion ◽  
Oxide Surface ◽  
Functionalized Graphene ◽  
Pickering Emulsions ◽  
Efficient Catalyst ◽  
Functionalized Graphene Oxide ◽  
Amine Functionalized ◽  
Mild Temperature

In this study, a series of Pickering emulsions for catalysis of Knoevenagel condensations of malononitrile with aldehydes were prepared by surface modification of amine-functionalized graphene oxide (GO-NH2) with trimethoxymethylsilane (MTMS).

scholarly journals Multisulfonate hyperbranched polyglycerol functionalized graphene oxide as an efficient reusable catalyst for green synthesis of benzo[a]pyrano-[2,3-c]phenazines under solvent-free conditions

RSC Advances ◽  
2019 ◽  
Vol 9 (13) ◽  
pp. 7400-7410 ◽  
Author(s):  
Hossein Naeimi ◽  
Maryam Farahnak Zarabi
Keyword(s):  
Graphene Oxide ◽  
Green Synthesis ◽  
Acid Catalyst ◽  
Solvent Free ◽  
Reusable Catalyst ◽  
Hydroxyl Groups ◽  
Functionalized Graphene ◽  
Functionalized Graphene Oxide ◽  
Solvent Free Conditions ◽  
Hyperbranched Polyglycerol

A novel acid catalyst was prepared based on growing hyperbranched polyglycerol (HPG) on the surface of graphene oxide. Then, the hydroxyl groups of HPG on graphene oxide were functionalized by sulfonate groups to form an acid catalyst.

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