A facile, environmentally friendly synthesis of strong photo-emissive methylammonium lead bromide perovskite nanocrystals enabled by ionic liquids

2020 ◽  
Vol 22 (11) ◽  
pp. 3433-3440 ◽  
Author(s):  
Minh Tam Hoang ◽  
Ngoc Duy Pham ◽  
Yang Yang ◽  
Vincent Tiing Tiong ◽  
Chao Zhang ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Green Synthesis ◽  
Environmentally Friendly ◽  
Perovskite Nanocrystals ◽  
Practical Applications ◽  
Lead Bromide

An ionic liquid-based green synthesis of perovskite nanocrystals towards practical applications.

InCl3·4H2O-promoted green preparation of xanthenedione derivatives in ionic liquids

2005 ◽  
Vol 83 (1) ◽  
pp. 16-20 ◽  
Author(s):  
Xuesen Fan ◽  
Xueyuan Hu ◽  
Xinying Zhang ◽  
Jianji Wang
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Green Synthesis ◽  
Novel Method ◽  
Green Procedure ◽  
Reaction Media ◽  
Operational Simplicity

A green procedure for the synthesis of xanthenedione derivatives (3) through InCl3·4H2O-promoted condensation of aldehydes (1) and 5,5-dimethyl-1,3-cyclohexanedione (2) in ionic liquids is described in this paper. This novel method has such advantages as operational simplicity and environmental benignancy together with enhanced atom utilization. Moreover, the reaction media and the catalyst can be recovered conveniently and reused effectively for at least six times.Key words: ionic liquid, xanthenedione derivatives, indium trichloride, green synthesis.

Green Synthesis of Liquid Crystal Intermediates the Preparation of Phenylacetylenes in Ionic Liquids

2010 ◽  
Vol 428-429 ◽  
pp. 46-51
Author(s):  
Bao You Liu ◽  
Hui Long Yang ◽  
Yi Ping Wang ◽  
Yuan Yuan Wang ◽  
Zhi Jie Wu ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Liquid Crystal ◽  
Green Synthesis ◽  
Sonogashira Coupling ◽  
Terminal Alkynes ◽  
Mild Conditions ◽  
Substituted Acetylenes

Sonogashira coupling of phenylacetylenes with phenyl iodides in 1-butyl-3-methyl- imidazolium bromide (BMImBr) was explored. Using CuI/Pd(PPh3)4 as a catalyst and Im as the base, the expected substituted acetylenes were obtained with good to excellent yields (61%-95%) under mild conditions (4h, 60oC). After the product was isolated, the left ionic liquid can been readily recovered and reused in the subsquent runs with almost the same efficiency. The reactivity of different iodoarenes with terminal alkynes was also discussed.

scholarly journals Environmental-Friendly Carrageenan Based Ionic-Liquid Driven Soft Actuators

2021 ◽  
Author(s):  
João Serra ◽  
Liliana Fernandes ◽  
Daniela Correia ◽  
Carmen R Tubio ◽  
Jose Luis Vilas ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Environmentally Friendly ◽  
Environmental Friendly ◽  
Soft Actuators

Naturally derived polymer based on iota carrageenan and different ammonium and imidazolium based ionic liquids (ILs) are used for the development of environmentally friendly soft actuators. The influence of IL...

A Review on Biodiesel Synthesis Using Catalyzed Transesterification Base Ionic Liquids as Catalyst

2013 ◽  
Vol 772 ◽  
pp. 303-308 ◽  
Author(s):  
Ben Yong Han ◽  
Wu Di Zhang ◽  
Yu Bao Chen ◽  
Fang Yin ◽  
Shi Qing Liu ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Chemical Reactions ◽  
Low Cost ◽  
Environmentally Friendly ◽  
Biodiesel Production ◽  
Biodiesel Synthesis ◽  
The Cost ◽  
Production Preparation

onic liquid is a green catalyzer and solvent which can be designed by changing the structure of its cation or anion. Ionic liquid has been used in diverse chemical reactions. Especially, Ionic liquids as environmentally friendly catalysts were applied in biodiesel production. Preparation of biodiesel catalyzed by ionic liquids have many merits, such as no corrosion to equipment, no pollution to environment, and reusability. In this paper, the advances in the base ionic liquids catalysts and their application in biodiesel production were reviewed. The characterization of the ionic liquids were summarized. In addition, the prospect for the application of the basic ionic liquids to catalyze biodiesel production was also stated. Since the cost of ionic liquid may be an issue, there are some challenges to be faced, such as the production of ionic liquids with low cost, easy recovery and with the possibility of reutilization of the catalyst for several cycles.

Green synthesis of dipyrromethanes in aqueous media catalyzed by SO3H-functionalized ionic liquid

2016 ◽  
Vol 14 (4) ◽  
pp. 1302-1310 ◽  
Author(s):  
W. Senapak ◽  
R. Saeeng ◽  
J. Jaratjaroonphong ◽  
T. Kasemsuk ◽  
U. Sirion
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Green Synthesis ◽  
Room Temperature ◽  
Aqueous Media ◽  
Functionalized Ionic Liquid ◽  
Metal Free

A mild, efficient and metal-free method was described for the green synthesis of dipyrromethanes from aldehydes and unsubstituted pyrrole catalyzed by SO3H-functionalized ionic liquids (SO3H-ILs) in aqueous media at room temperature.

Novel Brønsted-Acidic Ionic Liquids Based on Benzothiazolium Cations as Catalysts for the Acetalization Reactions

2011 ◽  
Vol 396-398 ◽  
pp. 1969-1974 ◽  
Author(s):  
Xue Li ◽  
Yong Quan Gu ◽  
Yang Yang ◽  
Hang Song ◽  
Shun Yao
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Catalytic Properties ◽  
Reaction Medium ◽  
Environmentally Friendly ◽  
Temperature Sensitive ◽  
Acidic Ionic Liquids ◽  
Simple Filtration ◽  
Higher Temperature ◽  
Lower Temperature

Three novel brønsted-acidic ionic liquids based on benzothiazolium cations ([HBth][CH3SO3], [HBth][CF3SO3] and [HBth][p-Tsa]) were prepared and served as effective and environmentally friendly catalysts for the acetalization reactions. Highly catalytic properties and the temperature-sensitive characteristic of the ionic liquid catalysts were exhibited during the process. The temperature-sensitive characteristic made the catalysts homogeneous in higher temperature during the reaction and precipitated from the reaction medium in lower temperature after the reaction, which was conducive to the isolation of the ionic liquids by simple filtration. Furthermore, a recycling study was executed and confirmed that the ionic liquids could be used multiple times affording without noticeable decrease in efficiency.

An ionic liquid extraction process for the separation of indole from wash oil

2015 ◽  
Vol 17 (7) ◽  
pp. 3783-3790 ◽  
Author(s):  
Tiantian Jiao ◽  
Xulei Zhuang ◽  
Hongyan He ◽  
Lihong Zhao ◽  
Chunshan Li ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Process Simulation ◽  
Environmentally Friendly ◽  
Extraction Process ◽  
Liquid Extraction ◽  
Separation Process

Imidazolium-based ionic liquids (IBILs) were developed as an extraction medium to separate indole from wash oil. The process is environmentally friendly and the IBILs could be easily recycled. The extraction conditions are very mild. A separation process is proposed based on the process simulation.

Mapping the “Extra Solvent Power, ESP” of Ionic Liquids for Monomers, Polymers and Globular Nanoparticles

2017 ◽  
Author(s):  
Jose A. Pomposo
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Linear Polymers ◽  
Green Solvents ◽  
Ionic Polymers ◽  
First Time ◽  
Solvent Power

Understanding the miscibility behavior of ionic liquid (IL) / monomer, IL / polymer and IL / nanoparticle mixtures is critical for the use of ILs as green solvents in polymerization processes, and to rationalize recent observations concerning the superior solubility of some proteins in ILs when compared to standard solvents. In this work, the most relevant results obtained in terms of a three-component Flory-Huggins theory concerning the “Extra Solvent Power, ESP” of ILs when compared to traditional non-ionic solvents for monomeric solutes (case I), linear polymers (case II) and globular nanoparticles (case III) are presented. Moreover, useful ESP maps are drawn for the first time for IL mixtures corresponding to case I, II and III. Finally, a potential pathway to improve the miscibility of non-ionic polymers in ILs is also proposed.

Dynamics of Ion Locking in Doubly Polymerized Ionic Liquids

2020 ◽  
Author(s):  
Swati Arora ◽  
Julisa Rozon ◽  
Jennifer Laaser
Keyword(s):  
Dielectric Constant ◽  
Ionic Liquid ◽  
Ionic Liquids ◽  
Ion Pairs ◽  
Polymer Chains ◽  
Ion Motion ◽  
Charged Species ◽  
Broadband Dielectric Spectroscopy ◽  
Covalently Linked ◽  
Insight Into

<div>In this work, we investigate the dynamics of ion motion in “doubly-polymerized” ionic liquids (DPILs) in which both charged species of an ionic liquid are covalently linked to the same polymer chains. Broadband dielectric spectroscopy is used to characterize these materials over a broad frequency and temperature range, and their behavior is compared to that of conventional “singly-polymerized” ionic liquids (SPILs) in which only one of the charged species is attached to the polymer chains. Polymerization of the DPIL decreases the bulk ionic conductivity by four orders of magnitude relative to both SPILs. The timescales for local ionic rearrangement are similarly found to be approximately four orders of magnitude slower in the DPILs than in the SPILs, and the DPILs also have a lower static dielectric constant. These results suggest that copolymerization of the ionic monomers affects ion motion on both the bulk and the local scales, with ion pairs serving to form strong physical crosslinks between the polymer chains. This study provides quantitative insight into the energetics and timescales of ion motion that drive the phenomenon of “ion locking” currently under investigation for new classes of organic electronics.</div>

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