Functionalization of multi-walled carbon nanotubes with pramipexole for immobilization of palladium nanoparticles and investigation of catalytic activity in the Sonogashira coupling reaction

2016 ◽  
Vol 31 (5) ◽  
pp. e3600 ◽  
Author(s):  
Sahar Abbasi ◽  
Malak Hekmati
Keyword(s):  
Carbon Nanotubes ◽  
Catalytic Activity ◽  
Palladium Nanoparticles ◽  
Coupling Reaction ◽  
Sonogashira Coupling ◽  
Sonogashira Coupling Reaction ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Catalytic activity of surfactant--solubilized multi--walled carbon nanotubes decorated with palladium nanoparticles

2008 ◽  
Vol 17 (7-10) ◽  
pp. 1582-1585 ◽  
Author(s):  
Nikolaos Karousis ◽  
Georgia-Eleni Tsotsou ◽  
Nikitas Ragoussis ◽  
Nikos Tagmatarchis
Keyword(s):  
Carbon Nanotubes ◽  
Catalytic Activity ◽  
Palladium Nanoparticles ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Effect of acid functionalised carbon supports for Pd–Ni–Sn catalyst on ethanol oxidation reaction

RSC Advances ◽  
2015 ◽  
Vol 5 (75) ◽  
pp. 61298-61308 ◽  
Author(s):  
S. Jongsomjit ◽  
K. Sombatmankhong ◽  
P. Prapainainar
Keyword(s):  
Carbon Nanotubes ◽  
Catalytic Activity ◽  
Carbon Black ◽  
Oxidation Reaction ◽  
Ethanol Oxidation ◽  
Reduction Method ◽  
Carbon Supports ◽  
Ethanol Oxidation Reaction ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

The reduction method was used to prepare catalysts on carbon black (CB), functionalised carbon black (CBsn), multi-walled carbon nanotubes (MWCNTs) and functionalised MWCNTs (MWCNTsn) to improve the catalytic activity for ethanol oxidation reaction.

scholarly journals Facile Green Preparation of Rhodium Nanoclusters Supported Nano-Scaled Graphene Platelets for Sonogashira Coupling Reaction and Reduction of p-Nitrophenol

Catalysts ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 908 ◽  
Author(s):  
Gopiraman Mayakrishnan ◽  
Saravanamoorthy Somasundaram ◽  
Sana Ullah ◽  
Ilangovan Andivelu ◽  
Kim Ick Soo ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Electron Microscope ◽  
Inductively Coupled Plasma ◽  
Coupling Reaction ◽  
Significant Loss ◽  
Sonogashira Coupling ◽  
Inductively Coupled ◽  
Sonogashira Coupling Reaction ◽  
Graphene Platelets ◽  
Means Of Transmission

Rhodium nanoclusters were uniformly dispersed on nano-scaled graphene platelets by a simple ‘mix and heat’ method without using any toxic reagents. Distilled water was used to obtain the homogenous dispersion of Rh-nanoclusters on graphene platelets. The morphology of the resultant catalyst (Rh(0)NCs/GNPs) was studied by means of transmission electron microscope (TEM) and atomic force microscope (AFM) analyses. The X-ray photoemission spectroscope (XPS) result confirmed the metallic form of Rh-nanoclusters in Rh(0)NCs/GNPs. The crystalline property and the interaction between Rh-nanoclusters and graphene platelets (GNPs) were studied by means of XRD and Raman analysis. The Rh-loading in Rh(0)NCs/GNPs was confirmed by scanning electron microscope and energy dispersive spectroscope (SEM-EDS) and inductively coupled plasma-mass spectroscope (ICP-MS) analysis. After being optimized, the Rh(0)NCs/GNPs used as catalyst for the reduction of 4-nitrophenol with NaBH4 and the Sonogashira coupling reaction between iodobenzene with phenylacetylene. To our delight, the Rh(0)NCs/GNPs showed excellent catalytic activity towards the reduction of 4-nitrophenol with an excellent turnover frequency (TOF) value of 112.5 min−1. The kapp and k’ values were calculated to be 62.07 × 10−3 min−1(0.002 mg of Rh(0)NCs/GNPs) and 31035 × 10−3 mg−1 min−1,respectively. Alike, under the optimal conditions, the Rh(0)NCs/GNPs gave the desired product, diphenylacetylene, in a good yield of 87% with 91% selectivity. The Rh(0)NCs/GNPs can be reused without significant loss in its catalytic activity.

Catalytic activity, stability and structure of multi-walled carbon nanotubes in the wet air oxidation of phenol

Carbon ◽  
2008 ◽  
Vol 46 (3) ◽  
pp. 445-452 ◽  
Author(s):  
Shaoxia Yang ◽  
Xiang Li ◽  
Wanpeng Zhu ◽  
Jianbing Wang ◽  
Claude Descorme
Keyword(s):  
Carbon Nanotubes ◽  
Catalytic Activity ◽  
Air Oxidation ◽  
Wet Air Oxidation ◽  
Multi Walled Carbon Nanotubes ◽  
Oxidation Of Phenol ◽  
Walled Carbon Nanotubes
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