Robust Bulky [P,O] Neutral Nickel Catalysts for Copolymerization of Ethylene with Polar Vinyl Monomers

ACS Catalysis ◽  
2018 ◽  
Vol 8 (7) ◽  
pp. 5963-5976 ◽  
Author(s):  
Yanping Zhang ◽  
Hongliang Mu ◽  
Li Pan ◽  
Xuling Wang ◽  
Yuesheng Li
Keyword(s):  
Nickel Catalysts ◽  
Vinyl Monomers

A N-bridged strategy enables hemilabile phosphine–carbonyl palladium and nickel catalysts to mediate ethylene polymerization and copolymerization with polar vinyl monomers

2020 ◽  
Vol 11 (38) ◽  
pp. 6187-6193 ◽  
Author(s):  
Lei Cui ◽  
Zhongbao Jian
Keyword(s):  
Ethylene Polymerization ◽  
Nickel Catalysts ◽  
Vinyl Monomers ◽  
Molecular Weights

N-Bridged phosphine–carbonyl Pd(ii) and Ni(ii) catalysts enable the enhancement of molecular weights in ethylene polymerization and copolymerization with polar comonomers.

Pre-reforming of Liquefied Petroleum Gas over Magnesium Aluminum Mixed Oxide Supported Nickel Catalysts

2013 ◽  
Vol 33 (7) ◽  
pp. 1176-1182
Author(s):  
Xinxing WANG ◽  
Xueguang WANG ◽  
Xingfu SHANG ◽  
Wangxin NIE ◽  
Xiujing ZOU ◽  
...  
Keyword(s):  
Mixed Oxide ◽  
Nickel Catalysts ◽  
Liquefied Petroleum Gas ◽  
Supported Nickel Catalysts

Palladium Promoted Copolymerization of Carbon Monoxide with Polar or Nonpolar Olefinic Monomers

2020 ◽  
Vol 24 ◽  
Author(s):  
Yanlin Zong ◽  
Qiankun Li ◽  
Hongliang Mu ◽  
Zhongbao Jian
Keyword(s):  
Carbon Monoxide ◽  
Physical Properties ◽  
Vinyl Monomers ◽  
Pd Catalysts ◽  
Catalytic Systems

Abstract:: The copolymers of carbon monoxide (CO) and olefins, namely polyketones, are a family of widely used materi-als. In the catalytic preparation of these materials, palladium(II) catalysts represent the most successful catalytic systems. The production of both alternating and non-alternating polyketones has been achieved, with great difference in their physical properties. Herein, a variety of palladium(II) catalysts employed for the copolymerization of CO with various olefinic mon-omers such as ethylene, α-olefins, styrene and polar vinyl monomers are fully summarized. The influence of important fac-tors such as solvents and counterions on specific copolymerization, is also discussed. This review aims to enlighten the de-sign of new Pd catalysts with improved properties, as well as the development of new polyketone materials.

Gas chromatographic study of the sorption of C1-C3 alkanes on nickel catalysts

1969 ◽  
Vol 34 (9) ◽  
pp. 2652-2661
Author(s):  
L. Scháněl ◽  
P. Schneider ◽  
V. Bažant
Keyword(s):  
Nickel Catalysts ◽  
Chromatographic Study

Catalyst Selection for Hydrogenation of 1,2-Dihydroacenaphthylene

1998 ◽  
Vol 63 (11) ◽  
pp. 1945-1953 ◽  
Author(s):  
Jiří Hanika ◽  
Karel Sporka ◽  
Petr Macoun ◽  
Vladimír Kysilka
Keyword(s):  
Activation Energy ◽  
Nickel Catalyst ◽  
Palladium Catalyst ◽  
Active Component ◽  
Reaction Order ◽  
Nickel Catalysts ◽  
Practical Application ◽  
Repeated Use ◽  
Selection For ◽  
Catalyst Selection

The activity of ruthenium, palladium, and nickel catalysts for the hydrogenation of 1,2-dihydroacenaphthylene in cyclohexane solution was studied at temperatures up to 180 °C and pressures up to 8 MPa. The GC-MS technique was used to identify most of the perhydroacenaphthylene stereoisomers, whose fractions in the product were found dependent on the nature of the active component of the catalyst. The hydrogenation was fastest on the palladium catalyst (3% Pd/C). The nickel catalyst Ni-NiO/Al2O3, which is sufficiently active also after repeated use, can be recommended for practical application. The activation energy of 1,2-dihydroacenaphthylene hydrogenation using this catalyst is 17 kJ/mol, the reaction order with respect to hydrogen is unity.

Highly active and poison-tolerant nickel catalysts for tar reforming synthesized through controlled hydrothermal synthesis

2020 ◽  
Vol 607 ◽  
pp. 117779 ◽  
Author(s):  
Dara Khairunnisa Binte Mohamed ◽  
Andrei Veksha ◽  
Teik-Thye Lim ◽  
Grzegorz Lisak
Keyword(s):  
Hydrothermal Synthesis ◽  
Nickel Catalysts ◽  
Highly Active ◽  
Tar Reforming

scholarly journals Cold Plasma Deposition of Polymeric Nanoprotrusion, Nanoparticles, and Nanofilm Structures on a Slide Glass Surface

Processes ◽  
2021 ◽  
Vol 9 (1) ◽  
pp. 99
Author(s):  
Sun-Woo Yi ◽  
In-Keun Yu ◽  
Woon-Jung Kim ◽  
Seong-Ho Choi
Keyword(s):  
Contact Angle ◽  
Visible Light ◽  
Methyl Methacrylate ◽  
Cold Plasma ◽  
Plasma Deposition ◽  
Vinyl Monomers ◽  
Glass Slides ◽  
Structure Surface ◽  
One Step ◽  
Coated Surface

In this study, we coated the surface of glass slides with nanoprotrusion, nanoparticles, and nanofilm structures by one-step plasma deposition of three vinyl monomers. Three functional vinyl monomers with symmetrical polarity sites were used: methyl methacrylate (MMA), trifluoro methylmethacrylate (TFMA), and trimethylsilyl methyl methacrylate (TSMA). The TSMA/MMA (80/20, mol-%) nanoprotrusion-coated surface of slide glass was superhydrophobic, with a 153° contact angle. We also evaluated the transmittance (%) of the slide glass with nanoprotrusions in the infrared (IR) (940 nm), ultraviolet (365 nm) and visible light (380–700 nm) regions. The obtained nanoprotrusion structure surface of slide glass created by plasma deposition transmits more than 90% of visible light.

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