Synthesis of Hierarchically Porous Zeolite Composites with Enhanced Catalytic Activity: Effect of Different Long-Chain Structure Directing Agents

2018 ◽  
Vol 18 (3) ◽  
pp. 1730-1737 ◽  
Author(s):  
He Ding ◽  
Yixiao Zhang ◽  
Zixing Xiao ◽  
Jingshuang Zhang ◽  
Peng Bai ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Chain Structure ◽  
Hierarchically Porous ◽  
Activity Effect ◽  
Structure Directing Agents ◽  
Long Chain

Catalytic Activity of Ag/SiO2 and Ag/Co3O4 Hierarchically Porous Monoliths for Hydrogenation of Dyes

2014 ◽  
Vol 3 (3) ◽  
pp. 286-295 ◽  
Author(s):  
Yasemin Hakat ◽  
Trupti Kotbagi ◽  
Martin Bakker
Keyword(s):  
Catalytic Activity ◽  
Hierarchically Porous

Effect of Co, Cu, and Zn on FeAlK catalyst in CO2 hydrogenation to C5+ hydrocarbons

2022 ◽  
Author(s):  
Khasan Nasriddinov ◽  
Ji-Eun Min ◽  
Hae-Gu Park ◽  
Seung Ju Han ◽  
Jingyu Chen ◽  
...  
Keyword(s):  
Global Warming ◽  
Catalytic Activity ◽  
Fossil Fuels ◽  
Co2 Hydrogenation ◽  
High Catalytic Activity ◽  
Long Chain ◽  
Cu And Zn

Direct CO2 hydrogenation to long-chain hydrocarbons can mitigate global warming by extensively replacing fossil fuels. However, designing a suitable catalyst with high catalytic activity and C5+ hydrocarbon selectivity continues to...

Facile preparation of a hierarchically porous metal–organic nanocomposite with excellent catalytic performance

RSC Advances ◽  
2016 ◽  
Vol 6 (99) ◽  
pp. 97399-97403 ◽  
Author(s):  
Rui Kuang ◽  
Luyi Zheng ◽  
Ethan Cottrill ◽  
Ning Pan ◽  
Yanhui Chi ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Aging Process ◽  
Porous Metal ◽  
Catalytic Performance ◽  
High Catalytic Activity ◽  
Hierarchically Porous ◽  
Hierarchical Porous ◽  
Metal Organic ◽  
Facile Preparation ◽  
Excellent Catalytic Performance

A hierarchical porous MOF nanocrystal, hpCuL (L = 2,4,6-tris(3,5-dicarboxylatephenylamino)-1,3,5-triazine) was prepared via a facile gel-aging process. This nanocomposite exhibits high catalytic activity and stability for the reduction of 4-nitrophenol.

Enhancement mechanism of sulfur dopants on the catalytic activity of N and P co-doped three-dimensional hierarchically porous carbon as a metal-free oxygen reduction electrocatalyst

2019 ◽  
Vol 9 (21) ◽  
pp. 5906-5914 ◽  
Author(s):  
Yongxi Zan ◽  
Zhengping Zhang ◽  
Meiling Dou ◽  
Feng Wang
Keyword(s):  
Catalytic Activity ◽  
Oxygen Reduction ◽  
Porous Carbon ◽  
Three Dimensional ◽  
Nitrogen And Phosphorus ◽  
Free Oxygen ◽  
Hierarchically Porous ◽  
Metal Free ◽  
Enhancement Mechanism ◽  
Co Doped

A sulfur, nitrogen and phosphorus ternary-doped cattle-bone-derived hierarchically porous carbon metal-free electrocatalyst was synthesized, exhibiting superior oxygen reduction performance compared to Pt/C.

Interpretation of long-chain structure from dilute solution properties of ultrahigh molecular weight polymers

1992 ◽  
Vol 27 (5) ◽  
pp. 571-575 ◽  
Author(s):  
Maria Bercea ◽  
Silvia Ioan ◽  
Bogdan C. Simionescu ◽  
Cristofor I. Simionescu
Keyword(s):  
Molecular Weight ◽  
Chain Structure ◽  
Solution Properties ◽  
Dilute Solution ◽  
Dilute Solution Properties ◽  
Ultrahigh Molecular Weight ◽  
Long Chain

EFFECTS OF CATALYST PREPARATION CONDITIONS ON NANO-GOLD DEPOSITED ON ZSM-5 FOR CO OXIDATION

2008 ◽  
Vol 22 (18n19) ◽  
pp. 3278-3288 ◽  
Author(s):  
A. H. SHAHBAZI KOOTENAEI ◽  
M. KAZEMEINI ◽  
H. KAZEMIAN
Keyword(s):  
Catalytic Activity ◽  
Acid Solution ◽  
Co Oxidation ◽  
Catalyst Preparation ◽  
Effect Of Temperature ◽  
Chloroauric Acid ◽  
Preparation Conditions ◽  
Activity Effect ◽  
Nano Gold ◽  
Co Conversion

Calcined Na - ZSM -5 zeolite was directly reacted with the chloroauric acid solution in different concentrations and pH for gold loading process. The synthesized Au / ZSM -5 catalyst was then characterized using XRD, BET, SEM, TEM and EDS techniques. In order to evaluate its catalytic activity, effect of temperature on CO conversion was investigated.

Transition metals as dopants on nickel borides: Their catalytic activity effect on hydrogenation reactions

2008 ◽  
Vol 133-135 ◽  
pp. 49-55 ◽  
Author(s):  
Delicia Acosta ◽  
Norma Ramírez ◽  
Eleonora Erdmann ◽  
Hugo Destéfanis ◽  
Elio Gonzo
Keyword(s):  
Catalytic Activity ◽  
Transition Metals ◽  
Activity Effect ◽  
Hydrogenation Reactions

scholarly journals Synthesis and Fluorescent Properties of Novel Mono- and Di-Substituted 1,8-Naphthalimide Derivatives at the C-4 Position

2017 ◽  
Author(s):  
Ying Fu ◽  
Xiao-Xiao Pang ◽  
Kui Wang ◽  
Zhi-Qiang Wang ◽  
Guan-Yu Li ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Chain Structure ◽  
Fluorescence Properties ◽  
Stacking Interactions ◽  
Fluorescent Properties ◽  
Enhanced Fluorescence ◽  
Pi Stacking ◽  
Molecular Core ◽  
Long Chain

A series of novel N-n-butyl-1,8-naphthalimide derivatives were synthesized via a three-step reaction involving nucleophilic substitution and acylation. All of the compounds were characterized by IR, 1H NMR, 13C NMR, MS, and elemental analysis, and the crystal structure of N-n-butyl-4-[N’,N’-bis(2`,4`-dichlorobenzoyl)ethylamino]-1,8-naphthalimide was determined. The π-π stacking interactions and hydrogen bonds between the two molecular core planes (naphthalimide ring) and the van der Waals forces between the flexible n-butyl groups resulted in a 3D long-chain structure. The UV-vis and fluorescence properties of the title compounds were investigated. The results indicated that the monosubstituted 1,8-naphthalimide derivatives bearing an electron-donating group on the benzene ring or a structure with a larger conjugative effect exhibited enhanced fluorescence properties.

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