Multifunctional mesoporous materials with acid–base frameworks and ordered channels filled with ionic liquid: Synthesis, characterization and catalytic performance of Ti–Zr-SBA-15-IL

2012 ◽  
Vol 258 (16) ◽  
pp. 6158-6168 ◽  
Author(s):  
Wenjuan Zhang ◽  
Hua Wang ◽  
Jinyu Han ◽  
Zhiqiang Song
Keyword(s):  
Ionic Liquid ◽  
Mesoporous Materials ◽  
Catalytic Performance ◽  
Acid Base

scholarly journals The influence of the polymerization approach on the catalytic performance of novel porous poly (ionic liquid)s for green synthesis of pharmaceutical spiro-4-thiazolidinones

RSC Advances ◽  
2020 ◽  
Vol 10 (72) ◽  
pp. 44159-44170
Author(s):  
Zahra Elyasi ◽  
Javad Safaei Ghomi ◽  
Gholam Reza Najafi ◽  
Mohammad Reza Zand Monfared
Keyword(s):  
Ionic Liquid ◽  
Green Synthesis ◽  
Bifunctional Catalyst ◽  
Catalytic Performance ◽  
Acid Base ◽  
Poly Ionic Liquid ◽  
Porous Poly

Sustainable synthesize of a new mesoporous poly (ionic liquid) as acid–base bifunctional catalyst for environmental being preparation of monospiro derivatives has been developed.

Catalytic Performance of Imidazolide Basic Ionic Liquid in Knoevenagel Reactions in Aqueous Media

2011 ◽  
Vol 32 (4) ◽  
pp. 693-698
Author(s):  
Xuewei CHEN ◽  
Hongbing SONG ◽  
Xuehui LI ◽  
Furong WANG ◽  
Yu QIAN
Keyword(s):  
Ionic Liquid ◽  
Aqueous Media ◽  
Catalytic Performance ◽  
Basic Ionic Liquid

Incorporation of linear poly(ionic liquid)s inside acid-base dualistic carbons for CO2 cycloaddition reaction

2021 ◽  
Vol 52 ◽  
pp. 101702
Author(s):  
Nanhua Wu ◽  
Yifeng Zou ◽  
Rong Xu ◽  
Jing Zhong ◽  
Jing Li
Keyword(s):  
Ionic Liquid ◽  
Cycloaddition Reaction ◽  
Acid Base ◽  
Linear Poly ◽  
Poly Ionic Liquid

Efficient and Reusable Silica Gel Supported Metal Ionic Liquid Catalysts for Palmitic Acid Esterification to Biodiesel

2021 ◽  
Vol 43 (1) ◽  
pp. 1-1
Author(s):  
Guo Yingwei Guo Yingwei ◽  
Chen Xuedan Chen Xuedan ◽  
Yan Shiting Yan Shiting ◽  
Zhang Zhengliang Zhang Zhengliang ◽  
Chen Yuqin Chen Yuqin ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Palmitic Acid ◽  
Silica Gel ◽  
High Surface ◽  
High Surface Area ◽  
Kinetic Studies ◽  
Catalytic Performance ◽  
Reaction Conditions ◽  
Acid Esterification ◽  
Supported Metal

A series of silica gel (SG) supported metal ionic liquid catalysts (x[Bmim]Cl-CrCl3/SG) were synthesized and exploited for the esterification of palmitic acid (PA) with methanol (ML) to produce biodiesel efficiently. The 10%[Bmim]Cl-CrCl3/SG catalyst with high surface area and desirable acidity exhibited the best catalytic performance and reusability after six consecutive running cycles. Based on the response surface analysis, the optimal reaction conditions were obtained as follows: methanol/acid mole ratio = 11:1 mol/mol, catalyst amount = 5.3 wt%, reaction time = 65 min, as well as reaction temperature = 373 K, reaching to a biodiesel yield of 96.1%. Further kinetic studies demonstrated that the esterification of PA with ML obeyed 1.41 order kinetics for acid concentration with the activation energy of 16.88 kJ/mol

scholarly journals Influence of incorporating a small amount of silica on the catalytic performance of a MoO3/Al2O3 catalyst in ethanol oxidative dehydrogenation

2018 ◽  
Vol 16 (6) ◽  
Author(s):  
Aline Villarreal ◽  
Gabriella Garbarino ◽  
Paola Riani ◽  
Aida Gutiérrez Alejandre ◽  
Jorge Ramírez ◽  
...  
Keyword(s):  
Oxidative Dehydrogenation ◽  
Active Sites ◽  
Catalytic Performance ◽  
Redox Behavior ◽  
Acid Base ◽  
Pure Alumina ◽  
Molybdenum Catalyst ◽  
Al2o3 Catalyst ◽  
Dehydrogenation Of Ethanol

The influence of incorporating a small amount of silica on the catalytic performance of MoO3/Al2O3 catalyst was studied. Molybdenum supported on pure alumina and 5% SiO2-Al2O3 supports were synthesized. The catalysts were characterized by XRD, Raman, UV-Vis and IR spectroscopies, FE-SEM microscopy, and their activity was evaluated in the oxidative dehydrogenation of ethanol to acetaldehyde. Molybdenum supported on pure alumina gives a 74% yield to acetaldehyde (at 573 K) due to the generation of oxy-dehydrogenation active sites by molybdenum and to the decrement of the alumina dehydration sites. For the molybdenum catalyst supported on silica-containing alumina, the molybdenum species were displaced from the strongest alumina’s acid-base couples, located on nanoparticles edges, corners and defects, to weaker ones located on plane faces causing the rise of weakly bonded species with less active redox behavior.  

Stability, interparticle interactions and catalytic performance of gold nanoparticles synthesized through ionic liquid mediated oil palm leaves extract

2018 ◽  
Vol 6 (4) ◽  
pp. 5024-5031 ◽  
Author(s):  
Muhammad Irfan ◽  
Muhammad Moniruzzaman ◽  
Tausif Ahmad ◽  
Ola Yahia Osman ◽  
Pradip Chandra Mandal ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Ionic Liquid ◽  
Oil Palm ◽  
Catalytic Performance ◽  
Interparticle Interactions

Efficient and Reusable Silica Gel Supported Metal Ionic Liquid Catalysts for Palmitic Acid Esterification to Biodiesel

2021 ◽  
Vol 43 (1) ◽  
pp. 1-1
Author(s):  
Guo Yingwei Guo Yingwei ◽  
Chen Xuedan Chen Xuedan ◽  
Yan Shiting Yan Shiting ◽  
Zhang Zhengliang Zhang Zhengliang ◽  
Chen Yuqin Chen Yuqin ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Palmitic Acid ◽  
Silica Gel ◽  
High Surface ◽  
High Surface Area ◽  
Kinetic Studies ◽  
Catalytic Performance ◽  
Reaction Conditions ◽  
Acid Esterification ◽  
Supported Metal

A series of silica gel (SG) supported metal ionic liquid catalysts (x[Bmim]Cl-CrCl3/SG) were synthesized and exploited for the esterification of palmitic acid (PA) with methanol (ML) to produce biodiesel efficiently. The 10%[Bmim]Cl-CrCl3/SG catalyst with high surface area and desirable acidity exhibited the best catalytic performance and reusability after six consecutive running cycles. Based on the response surface analysis, the optimal reaction conditions were obtained as follows: methanol/acid mole ratio = 11:1 mol/mol, catalyst amount = 5.3 wt%, reaction time = 65 min, as well as reaction temperature = 373 K, reaching to a biodiesel yield of 96.1%. Further kinetic studies demonstrated that the esterification of PA with ML obeyed 1.41 order kinetics for acid concentration with the activation energy of 16.88 kJ/mol

scholarly journals Preparation and Catalytic Performance of Ionic Liquid Catalyst Immobilized by ZrO2

2013 ◽  
Vol 25 (8) ◽  
pp. 4523-4526
Author(s):  
Jianwei Lian ◽  
Jianling Xia ◽  
Kun Huang ◽  
Mei Li
Keyword(s):  
Ionic Liquid ◽  
Catalytic Performance
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