Magnetically separable and efficient platinum catalyst: Amino ligand enhanced loading and Fe 2+ facilitated Pt 0 formation

2021 ◽  
Author(s):  
Haifeng Zhang ◽  
Cheng Cai ◽  
Tao Hu ◽  
Zhijie Zhang ◽  
Lina Dai ◽  
...  
Keyword(s):  
Platinum Catalyst ◽  
Magnetically Separable

Efficient magnetically separable heterogeneous platinum catalyst bearing imidazolyl schiff base ligands for hydrosilylation

2021 ◽  
Vol 936 ◽  
pp. 121714
Author(s):  
Yingpeng Huo ◽  
Jiwen Hu ◽  
Yuanyuan Tu ◽  
Zhenzhu Huang ◽  
Shudong Lin ◽  
...  
Keyword(s):  
Schiff Base ◽  
Platinum Catalyst ◽  
Schiff Base Ligands ◽  
Magnetically Separable

One Pot Multicomponent Synthesis of Tetrahydrobenzo[b] pyrans and Dihydropyrano[c] chromenes using Magnetically Separable NiFe2O4 Nanoparticles

2018 ◽  
Vol 8 (1) ◽  
pp. 66-74 ◽  
Author(s):  
Karthik K. Krishnan ◽  
Vijay V. Dabholkar ◽  
Ajay Gopinathan ◽  
Rahul Jaiswar
Keyword(s):  
Multicomponent Synthesis ◽  
One Pot ◽  
Nife2o4 Nanoparticles ◽  
Magnetically Separable

Hydrophobic hydrogen anode with a nickel catalyst

1982 ◽  
Vol 47 (12) ◽  
pp. 3230-3235 ◽  
Author(s):  
Olga Marholová ◽  
Karel Smrček
Keyword(s):  
Surface Area ◽  
Nickel Catalyst ◽  
Raney Nickel ◽  
Platinum Catalyst ◽  
Raney Nickel Catalyst ◽  
Electrochemical Parameters ◽  
Geometric Surface ◽  
Geometric Surface Area ◽  
Hydrogen Anode ◽  
In Cells

A hydrophobic porous hydrogen anode was prepared whose electrochemical parameters are comparable with anodes containing a platinum catalyst. For its successful preparation, oxidation of the Raney nickel catalyst with air oxygen or with fluorine from Teflon must be prevented. The electrodes of a geometric surface area up to 450 cm2 were tested in cells and modules filled with 7M-KOH.

Geometric Factor in Skeletal Reactions of 2-Methylpentane on Stepped Surfaces of Platinum Catalyst

1992 ◽  
Vol 57 (10) ◽  
pp. 2012-2020
Author(s):  
Vladimír Hejtmánek
Keyword(s):  
Active Sites ◽  
Platinum Catalyst ◽  
Point Of View ◽  
Geometric Factor ◽  
Published Data ◽  
Stepped Surfaces ◽  
Geometric Conditions ◽  
Surface Intermediates ◽  
Isomerization Mechanism

The role of geometric factor in the course of skeletal reactions (isomerization, hydrogenolysis) of 2-methylpentane on stepped (119), (557) and reconstructed R(557) surfaces of single crystals of platinum was evaluated with computer designed models. These calculations were compared with reported experimental data. It was found by analysis of geometric conditions that there are accessible active ensembles on double step of the reconstructed R(557) surface. In addition, these active sites are unsaturated in their coordination sphere and thus catalytically effective. This finding is consistent with published data, confirming higher catalytic activity of this surface. The various pathways of Bond Shift isomerization mechanism of 2-methylpentane from the point of view of steric demands of surface intermediates on differently located ensembles are discussed, too.

Engineering local coordination environment of atomically dispersed platinum catalyst via lattice distortion of support for efficient hydrogen evolution reaction

2021 ◽  
Vol 20 ◽  
pp. 100653
Author(s):  
Xing Cheng ◽  
Yue Lu ◽  
Lirong Zheng ◽  
Max Pupucevski ◽  
Hongyi Li ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Lattice Distortion ◽  
Platinum Catalyst ◽  
Coordination Environment ◽  
Local Coordination

Organoselenium ligand-stabilized copper nanoparticles: Development of a magnetically separable catalytic system for efficient, room temperature and aqueous phase reduction of nitroarenes

2021 ◽  
Vol 522 ◽  
pp. 120267
Author(s):  
Aayushi Arora ◽  
Preeti Oswal ◽  
Siddhant Singh ◽  
Divyanshu Nautiyal ◽  
Gyandshwar K. Rao ◽  
...  
Keyword(s):  
Aqueous Phase ◽  
Catalytic System ◽  
Copper Nanoparticles ◽  
Room Temperature ◽  
Phase Reduction ◽  
Magnetically Separable
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