Article
Chemistry, Physical
Mahtab Tabrizi, Naeimeh Bahri-Laleh, Samahe Sadjadi, Mehdi Nekoomanesh-Haghighi
Summary: A new class of ionic liquid containing AlCl3 catalysts was synthesized and used in 1-decene oligomerization to produce PAOs, offering a less-toxic alternative to traditional AlCl3 and BF3 catalysts. Different alkyl chlorides were employed to tune the catalytic efficiency, resulting in PAOs with varying microstructure and flow properties. The use of IL/AlCl3 system with reduced AlCl3 loading and proper selection of IL ligand allowed for control of PAO microstructure, showcasing significant achievements in the suggested catalytic systems.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Multidisciplinary
Zheng Wang, Da Li, Shangqing Chen, Jiayin Hu, Yanxi Gong, Yafei Guo, Tianlong Deng
Summary: The green basic IL [DBUH][BO2] was synthesized for the first time and proved to be an efficient catalyst for the cycloaddition of CO2 and epoxides, with high product yields and easy recovery and reuse. The synergy between the basic anion and the cation with N-H contributed to the catalytic effects, and the IL also showed effectiveness in the reaction of CO2 and 2-aminobenzonitriles into quinazoline-2,4(1H,3H)-diones.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Physical
Zhenping Cai, Yongxin Ding, Jiayin Zhang, Panjie Yu, Yongde Ma, Yanning Cao, Ying Zheng, Kuan Huang, Lilong Jiang
Summary: In this study, oil-soluble Mo-based ionic liquids were used as precursors to produce MoS2 catalysts for the hydroconversion of biolipids. The in situ generated MoS2 catalysts showed excellent activity in converting methyl palmitate and hexadecane to biodiesel. The structures of the catalysts were characterized, and the hydroconversion kinetics and pathways were analyzed. High conversions of feeds and selectivities of HDO products were achieved in the hydroconversion of methyl palmitate and palm oil under solvent-free condition.
JOURNAL OF CATALYSIS
(2023)
Article
Energy & Fuels
Lanyun Wang, Xinglin Wen, Zhen Liu, Zejian Liu, Yajuan Zhang, Xiaoran Lu, Huajian Zhou, Yongliang Xu
Summary: Utilization of TiO2 and SiO2 photocatalysts under UV light can greatly enhance the removal efficiency of organic sulfur from coal, with significant promotion on thiophene conversion. Compared to traditional methods, photocatalytic desulfurization shows only slight reduction in combustion heat value.
Article
Polymer Science
Tianlin Wang, Yue Zheng, Guangren Yu, Xiaochun Chen
Summary: The study focused on the effect of ionic liquids as surfactants in modifying CoFe2O4 magnetic nanoparticles for efficient catalysis in the glycolysis of PET. The modified CoFe2O4 nanoparticles showed excellent dispersibility in ethylene glycol and achieved high conversion and yield in the reaction. The catalyst exhibited good reusability without significant decrease in catalytic activity after ten cycles.
EUROPEAN POLYMER JOURNAL
(2021)
Article
Chemistry, Applied
Anoop Singh, Narinder Singh, Navneet Kaur
Summary: In this study, fluorescent conjugated and nonconjugated polythioamide were synthesized using a one-pot method with dialdehyde, diamines, and elemental sulfur, in the presence of IL1-IL2@Fe(3)O(4)NPs as a catalyst via the Willgerodt-Kindler reaction. A magnetized iron nanoparticles heterogeneous catalyst coated with an ionic liquid was synthesized. The catalyst was characterized by BET, XPS, PXRD, TEM, and FTIR spectroscopy. The multicomponent reaction proceeded smoothly at ambient temperature with excellent yield in the presence of the catalyst. The magnetic catalyst could be easily recovered, indicating the potential of this method for efficient polymerization of structurally diversified polythioamides.
APPLIED ORGANOMETALLIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Samahe Sadjadi, Neda Abedian-Dehaghani, Xuemin Zhong, Majid M. Heravi, Peng Yuan
Summary: Three different acidic ionic liquids were grafted onto halloysite to form heterogeneous catalysts. The catalysts exhibited higher acidity than halloysite, which varied depending on the type of ionic liquid. Among them, imidazolium-based ionic liquid showed the highest catalytic activity.
APPLIED CLAY SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Alina Brzeczek-Szafran, Karol Erfurt, Malgorzata Swadzba-Kwasny, Tomasz Piotrowski, Anna Chrobok
Summary: Inexpensive protic ionic liquids were used as solvents and catalysts for the Beckmann rearrangement, allowing the elimination of the base neutralization step and improving atom economy. The proposed method showed applicability for the synthesis of primary and secondary amides, and the ionic liquid could be recovered and reused.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Tian Yang, Juntao Yang, Xin Deng, Evanie Franz, Lukas Fromm, Nicola Taccardi, Zhi Liu, Andreas Goerling, Peter Wasserscheid, Olaf Brummel, Joerg Libuda
Summary: The solid catalyst with ionic liquid layer (SCILL) is a successful concept in heterogeneous catalysis and electrocatalysis for selective transformation of organic compounds.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Inorganic & Nuclear
Zahra Besharati, Masoume Malmir, Majid M. Heravi
Summary: The novel natural-based Cu2O@Mont/EAS-IL catalyst efficiently synthesized benzopyranopyrimidines intermediates, showing advantages such as low usage, easy operation, recyclability, and environmental friendliness, demonstrating its potential in the above-mentioned reaction.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Binxiong Guang, Wei Zhang, Yiwei Zhang, Yahui Xiao, Yong Liu
Summary: A novel process of cyclohexanol production based on cyclohexene esterification-hydrogenation using Cu(i) coordinated amino-functionalized poly(ionic liquid)s (PILs-Cu(i)) as catalysts has been developed. The PILs-Cu(i) exhibited excellent performance in the mild and highly selective hydrogenation of cyclohexyl acetate (CHA) to cyclohexanol (CHOL), achieving high conversion and selectivity. The catalyst also showed good stability and reusability after multiple recycling.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Fanxiang Meng, Lu Wang, Haijun Yan, Meng Zhang, Jide Wang, Ling Zhao, Chao Yang, Ronglan Wu
Summary: A new bismuth-based catalyst was prepared using halloysite nanotubes as a carrier and effectively used for acetylene hydrochlorination. The proposed Bi/HNT catalyst showed promising catalytic performance. Loss of active species (Bi species) and accumulation of carbon deposition on the surface are the main reasons for the deactivation of the Bi/HNT catalyst.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Energy & Fuels
Ping An, Jian Shi, Yuxin Wang, Zizhen Yan, Jiaxiang Hou, Guangwen Xu, Haiming Yu, Lei Shi
Summary: Various strongly basic ionic liquids were synthesized using hydroxyethoxy anion from ethylene glycol. The alkalinity of these liquids was equivalent to sodium methoxide and they exhibited good catalytic performance in transesterification reactions. By comparing with reported catalysts, the reaction mechanism was deduced and the activation energies were determined. A new catalyst circulation process without introducing impurities was proposed and verified.
Article
Chemistry, Physical
Samahe Sadjadi, Fatemeh Koohestani, Gerard Pareras, Mehdi Nekoomanesh-Haghighi, Naeimeh Bahri-Laleh, Albert Poater
Summary: The study identified the optimum heterocyclic ligand for the decoration of halloysite support through computational methods, and investigated its performance in interaction with Pd nanoparticles. The catalyst prepared with ionic liquid exhibited superior activity in hydrogenation reactions, showing high recyclability and stability.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Samahe Sadjadi, Neda Abedian-Dehaghani, Majid M. Heravi, Xuemin Zhong, Peng Yuan, Josep Duran, Albert Poater, Naeimeh Bahri-Laleh
Summary: Halloysite nanoclay was used as a natural support for an acidic ionic liquid immobilization. The resulting catalyst exhibited improved Bronsted acidity and high recyclability. It effectively promoted the conversion of various carbohydrates to a valuable product under mild reaction conditions.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
