نتایج جستجو برای: room temperature ionic liquid

تعداد نتایج: 733410  

2017
Wangyu Li Ying Pang Jingyuan Liu Guanghui Liu Yonggang Wang

A lithium-ion conducting gel polymer electrolyte (GPE) membrane containing PEO as a polymer host and liquid electrolyte has been prepared by a simple one-step procedure. The prepared electrolyte membrane exhibits a good ionic conductivity of 3.3 10 3 S cm 1 and high lithium transference number of 0.76 at room temperature. Meanwhile, the gel polymer electrolyte membrane shows very good thermal s...

Journal: :Analytical chemistry 2002
Chieu D Tran Silvia H De Paoli Lacerda

Near-infrared spectrometry has been successfully used to determine association binding constants between phenol and alpha-, beta- and gamma-cyclodextrin (CD) in [butylmethylimidazolium][chloride] room-temperature ionic liquid (RTIL). It was found that adding CD into the RTIL solution of phenol resulted in an enhancement in the absorption coefficient of the stretching overtone of the aromatic C-...

Journal: :Journal of polymer science 2021

Abstract Herein, we report a simple and versatile synthetic approach towards siloxane‐based poly(ionic liquid)s (PILs) with unusually low glass transition temperatures ( T g ) down to −73°C, thus “liquid‐like” behavior at room temperature. We designed polydimethylsiloxane‐derived copolymer carrying dialkylimidazolium moieties, by careful selection of the side‐chain length type anions were able ...

Journal: :journal of the iranian chemical research 0
ming lu college of chemical engineering, nanjing university of science and technology, nanjing 210094, pr china hui jiang college of chemical engineering, nanjing university of science and technology, nanjing 210094, pr china

in this work, benzyl alcohol was obtained in 96% excellent yield by hydrolysis of benzyl chloride catalyzedby the recyclable temperature-dependant phase-separation system that comprised the ionic liquid peg1000-dail[bf4], toluene and ferric sulfate under homogeneous catalysis in aqueous media. this novel methodnot only enhanced the yield, but also made the operating units easy workup. the catal...

2010
Dmitri D. Iarikov Ted Oyama Luke Achenie David Cox Dmitri Iarikov S. Ted Oyama

A literature survey was performed to evaluate the state-of-the-art membrane systems for CO2/CH4 separation which is critical in the natural gas industry. The systems that were reviewed included zeolite, carbon, polymeric, mixed matrix, amorphous silica, and supported ionic liquid membranes. Supported ionic liquid CO2/CH4 selective membranes were synthesized in our laboratory by applying room te...

Journal: :Battery energy 2023

Electrochemical batteries with organic electrode materials have attracted worldwide attention due to their high safety, low cost, renewability, contamination, and easiness of recycling. However, the practical application such system is limited by density, electronic/ionic conductivity, dissolution in conventional liquid electrolytes. Herein, a novel battery configuration proposed replace electr...

Journal: :Physical chemistry chemical physics : PCCP 2018
Kei Hashimoto Soma Suzuki Morgan L Thomas Toshihiko Mandai Seiji Tsuzuki Kaoru Dokko Masayoshi Watanabe

The phase behavior of binary mixtures of triglyme (G3) and Mg[TFSA]2 (TFSA: bis(trifluoromethanesulfonyl)amide) was investigated, towards the development of a Mg2+-based room-temperature solvate ionic liquid (SIL) electrolyte. In a 1 : 1 molar ratio, G3 and Mg[TFSA]2 form a thermally stable complex (decomposition temperature, Td: 240 °C) with a melting point (Tm) of 70 °C, which is considerably...

Journal: :Nature communications 2015
Daniela Molina Piper Tyler Evans Kevin Leung Tylan Watkins Jarred Olson Seul Cham Kim Sang Sub Han Vinay Bhat Kyu Hwan Oh Daniel A Buttry Se-Hee Lee

We are currently in the midst of a race to discover and develop new battery materials capable of providing high energy-density at low cost. By combining a high-performance Si electrode architecture with a room temperature ionic liquid electrolyte, here we demonstrate a highly energy-dense lithium-ion cell with an impressively long cycling life, maintaining over 75% capacity after 500 cycles. Su...

2007
Xi Jun He Zhen Lu Shen Wei Min Mo Bao Xiang Hu Nan Sun

The room temperature ionic liquid [bmim][PF6] was employed as the reaction medium in the asymmetric glyoxylate-ene reaction of α-methyl styrene (4a) with ethyl glyoxylate using chiral palladium(II) complexes as the catalysts. [Pd(S-BINAP)(3,5-CF3PhCN)2](SbF6)2 (1b) showed the highest catalytic activity. Under the reaction conditions of 40 C, 0.5 h, and 1b/4a molar ratio of 0.05, ethyl α-hydroxy...

Journal: :Physical chemistry chemical physics : PCCP 2006
Francisco Fabregat-Santiago Hyacinthe Randriamahazaka Arie Zaban Jorge Garcia-Cañadas G Garcia-Belmonte Juan Bisquert

The electrochemical behaviour of nanoporous TiO(2) in a room temperature ionic liquid (RTIL), 1-ethyl-3-methylimidazolium bis((trifluoromethyl)sulfonyl)amide (EMITFSI), was investigated by cyclic voltammetry (CV) and impedance spectroscopy. Exponentially rising currents in voltammetry were attributed to the charging/discharging of electrons in the TiO(2) film and a charge transfer mechanism. Th...

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