Allenylphosphine Oxides as Starting Materials for the Synthesis of Conjugated Enynes: Boosting the Catalytic Performance by MOF Encapsulated Palladium Nanoparticles

2018 ◽  
Vol 360 (18) ◽  
pp. 3518-3525 ◽  
Author(s):  
Xiao-Dong Wang ◽  
Jin-Jin Wu ◽  
Xue Sun ◽  
Wen-Chao Yang ◽  
Jie Zhu ◽  
...  
Keyword(s):  
Palladium Nanoparticles ◽  
Catalytic Performance ◽  
Conjugated Enynes

scholarly journals Polyethyleneimine-Oleic Acid Micelles-Stabilized Palladium Nanoparticles as Highly Efficient Catalyst to Treat Pollutants with Enhanced Performance

Polymers ◽  
2021 ◽  
Vol 13 (11) ◽  
pp. 1890
Author(s):  
Xiang Lai ◽  
Xuan Zhang ◽  
Shukai Li ◽  
Jie Zhang ◽  
Weifeng Lin ◽  
...  
Keyword(s):  
Oleic Acid ◽  
Metal Nanoparticles ◽  
Noble Metal ◽  
Palladium Nanoparticles ◽  
Human Life ◽  
Catalytic Performance ◽  
Water Soluble ◽  
Noble Metal Nanoparticles ◽  
Hydrodynamic Diameter ◽  
Efficient Catalyst

Water soluble organic molecular pollution endangers human life and health. It becomes necessary to develop highly stable noble metal nanoparticles without aggregation in solution to improve their catalytic performance in treating pollution. Polyethyleneimine (PEI)-based stable micelles have the potential to stabilize noble metal nanoparticles due to the positive charge of PEI. In this study, we synthesized the amphiphilic PEI-oleic acid molecule by acylation reaction. Amphiphilic PEI-oleic acid assembled into stable PEI-oleic acid micelles with a hydrodynamic diameter of about 196 nm and a zeta potential of about 34 mV. The PEI-oleic acid micelles-stabilized palladium nanoparticles (PO-PdNPsn) were prepared by the reduction of sodium tetrachloropalladate using NaBH4 and the palladium nanoparticles (PdNPs) were anchored in the hydrophilic layer of the micelles. The prepared PO-PdNPsn had a small size for PdNPs and good stability in solution. Noteworthily, PO-PdNPs150 had the highest catalytic activity in reducing 4-nitrophenol (4-NP) (Knor = 18.53 s−1mM−1) and oxidizing morin (Knor = 143.57 s−1M−1) in aqueous solution than other previous catalysts. The enhanced property was attributed to the improving the stability of PdNPs by PEI-oleic acid micelles. The method described in this report has great potential to prepare many kinds of stable noble metal nanoparticles for treating aqueous pollution.

Ultrafine Pd Nanoparticles Synthesis and Catalytic Performance in Methane Partial Oxidation

2011 ◽  
Vol 284-286 ◽  
pp. 1905-1908
Author(s):  
Bao Song Fu ◽  
Hu Liu ◽  
Guo Min Xiao
Keyword(s):  
Partial Oxidation ◽  
Palladium Nanoparticles ◽  
Oxidation Reaction ◽  
Pd Nanoparticles ◽  
Catalytic Performance ◽  
Methane Partial Oxidation ◽  
Narrow Size Distribution ◽  
Pd Nanoparticle ◽  
Partial Oxidation Reaction ◽  
Nanoparticles Synthesis

Narrow size distribution Palladium nanoparticles was synthesized by adding Pd precursor into a modified PMHS polymer solution, and then jelled by aluminium. The multi-functional polymer was characterized by NMR; Pd nanoparticle samples were characterized by TEM and catalytic activity was tested in methane partial oxidation reaction.

Palladium nanoparticles on polysaccharide-derived mesoporous materials and their catalytic performance in C–C coupling reactions

2008 ◽  
Vol 10 (4) ◽  
pp. 382-387 ◽  
Author(s):  
Vitaly L. Budarin ◽  
James H. Clark ◽  
Rafael Luque ◽  
Duncan J. Macquarrie ◽  
Robin J. White
Keyword(s):  
Mesoporous Materials ◽  
Palladium Nanoparticles ◽  
Catalytic Performance ◽  
Coupling Reactions

Cyclic voltammetry electrodeposition of well-dispersed Pd nanoparticles on carbon paper as a flow-through anode for microfluidic direct formate fuel cells

Nanoscale ◽  
2020 ◽  
Vol 12 (39) ◽  
pp. 20270-20278
Author(s):  
Tong Zhang ◽  
Xun Zhu ◽  
Ding-Ding Ye ◽  
Rong Chen ◽  
Yuan Zhou ◽  
...  
Keyword(s):  
Cyclic Voltammetry ◽  
Fuel Cells ◽  
Palladium Nanoparticles ◽  
Pd Nanoparticles ◽  
Catalytic Performance ◽  
Carbon Paper ◽  
Flow Through ◽  
Catalyst Utilization

Cyclic voltammetry electrodeposition of palladium nanoparticles on carbon paper results in high catalytic performance, catalyst utilization and stability for their use in microfluidic direct formate fuel cells.

Pd nanoparticles stabilized with phosphine-functionalized porous ionic polymer for efficient catalytic hydrogenation of nitroarenes in water

2020 ◽  
Vol 44 (9) ◽  
pp. 3681-3689 ◽  
Author(s):  
Yizhu Lei ◽  
Zaifei Chen ◽  
Guosong Lan ◽  
Renshu Wang ◽  
Xiao-Yu Zhou
Keyword(s):  
Catalytic Activity ◽  
Catalytic Hydrogenation ◽  
Palladium Nanoparticles ◽  
Pd Nanoparticles ◽  
Catalytic Performance ◽  
High Catalytic Activity ◽  
Ionic Polymer ◽  
Electron Donation ◽  
Nano Size ◽  
Excellent Catalytic Performance

Small palladium nanoparticles stabilized with phosphine-functionalized PIP displayed high catalytic activity for nitroarenes hydrogenation. Nano-size Pd particles, electron-donation effect of phosphine ligand, and surface wettability account for its excellent catalytic performance.

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