نتایج جستجو برای: ethylene carbonate

تعداد نتایج: 53462  

Journal: :Chemical communications 2015
Shun Wan Xueguang Jiang Bingkun Guo Sheng Dai John B Goodenough Xiao-Guang Sun

A new fluorinated and alkylated lithium malonatoborate salt, lithium bis(2-methyl-2-fluoromalonato)borate (LiBMFMB), has been synthesized for lithium ion battery application. A 0.8 M LiBMFMB solution is obtained in a mixture of ethylene carbonate (EC) and ethyl methyl carbonate (EMC) (1 : 2 by wt). The new LiBMFMB based electrolyte exhibits good cycling stability and rate capability in LiNi0.5M...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2008
fatemeh sarvi sameereh hashemi najafabadi ebrahim vasheghani farahani seyed abbas shojaosadati

methoxy poly(ethylene glycol) (mpeg) with molecular mass of 5 kda activated with succinimidyl carbonate and cyanuric chloride, separately was covalently attached to human red blood cells (rbcs). inhibition of agglutination by blood-type specific antisera (anti-d) was employed to evaluate the effect of the polymer coating. the remaining single cells after incubation with anti-d sera were counted...

Journal: :Advanced Materials Interfaces 2021

The “ethylene carbonate (EC)–propylene (PC) mystery” has puzzled electrochemists for decades. Surprisingly, the minor structural difference between PC and EC, a methyl vis-à-vis proton, prevents unlike EC to form stable solid electrolyte interphase (SEI) on carbon (C), which along with popularity of impeded development Li-ion batteries many years. Despite several hypotheses, fundamental reason ...

2018
Benjamin Qi Yu Chan Hongwei Cheng Sing Shy Liow Qingqing Dou Yun-Long Wu Xian Jun Loh Zibiao Li

In this study, we report the synthesis and characterisation of a thermogelling poly(carbonate urethane) system comprising poly(ethylene glycol) (PEG), poly(propylene glycol) (PPG) and poly(polytetrahydrofuran carbonate) (PTHF carbonate). The incorporation of PTHF carbonate allowed for the control of the lower critical solution temperature (LCST) and decreased critical gelation concentration (CG...

Journal: :Organic & biomolecular chemistry 2014
Maurizio Selva Alessio Caretto Marco Noè Alvise Perosa

At 90-120 °C, in the presence of methylcarbonate and bicarbonate methyltrioctylphosphonium salts as catalysts ([P8881][A]; [A] = MeOCO2 and HOCO2), the transesterification of non-toxic dimethyl- and diethyl-carbonate (DMC and DEC, respectively) with 1,X-diols (2 ≤ X ≤ 6) proceeds towards the formation of cyclic and linear products. In particular, 1,2-propanediol and ethylene glycol afford propy...

2005
Guorong V. Zhuang Kang Xu Hui Yang T. Richard Jow Philip N. Ross

Lithium ethylene dicarbonate (CH2OCO2Li)2 was chemically synthesized and its Fourier Transform Infrared (FTIR) spectrum was obtained and compared with that of surface films formed on Ni after cyclic voltammetry (CV) in 1.2M lithium hexafluorophosphate (LiPF6)/ ethylene carbonate (EC): ethyl methyl carbonate (EMC) (3:7, w/w) electrolyte and on metallic lithium cleaved in-situ in the same electro...

2010
J. G. M.-S. Monteiro P. A. C. Silva O. Q. F. Araújo J. L. Medeiros

This work investigates a procedure to design an Industrial Ecosystem for sequestrating CO2 and consuming glycerol in a Chemical Complex with 15 integrated processes. The Complex is responsible for the production of methanol, ethylene oxide, ammonia, urea, dimethyl carbonate, ethylene glycol, glycerol carbonate, β-carotene, 1,2-propanediol and olefins, and is simulated using UNISIM Design (Honey...

2010
G P Pandey Yogesh Kumar

Recent advances in the study of ionic liquids based gel polymer electrolytes have been briefly reviewed in view of their electrochemical applications, particularly, their application as electrolytes in supercapacitors. The incorporation of ionic liquids in gel polymer electrolytes, instead of organic solvents like propylene carbonate, ethylene carbonate, etc., provide added effect in terms of t...

2011
Xia Gui Zhigang Tang Weiyang Fei

The solubility of CO2 in ester mixtures under high pressures are studied in this article. The constant-volume method is used to determine the solubility of CO2 in DMC + diethyl carbonate system, DMC + propyl acetate system, DMC + propylene carbonate system, and DMC + ethylene carbonate system from 282.0 K to 303.0 K. It is found that the solubility of CO2 in four mixed solvents follows the Henr...

Journal: :Chemical communications 2014
Bogdan Draghici Daniela Vullo Suleyman Akocak Ellen A Walker Claudiu T Supuran Marc A Ilies

A series of ethylene bis-imidazoles was synthesized via a novel microwave-mediated synthesis. Biological testing on eight isozymes of carbonic anhydrase (CA) present in the human brain revealed compounds with nanomolar potency against CA VA and CA VII, also displaying excellent selectivity against other CA isozymes present in this organ.

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید