Log in

Relevant bibliographies by topics / [BPy ][BF4] ionic liquid / Journal articles

To see the other types of publications on this topic, follow the link: [BPy ][BF4] ionic liquid.

Journal articles on the topic '[BPy ][BF4] ionic liquid'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic '[BPy ][BF4] ionic liquid.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Su, Weike, Chunlei Wu, and Hao Su. "Ytterbium (III) trifluoromethanesulfonate catalysed Friedel–Crafts acylation of 1-methylpyrrole in ionic liquid." Journal of Chemical Research 2005, no. 1 (2005): 67–68. http://dx.doi.org/10.3184/0308234053431130.

Full text

Abstract:

In the presence of a catalytic amount of ytterbium (III) trifluoromethanesulfonate [Yb(OTf)3], 1-methylpyrrole can easily react with acyl chlorides in an ionic liquid [bpy][BF4](bpy=1-butylpyridine) to form corresponding ketones in satisfactory yield. The recyclability of the ionic liquid/catalyst system is demonstrated

APA, Harvard, Vancouver, ISO, and other styles

2

Guo, Y., J. Sun, F. Guo, Yu He, and P. Chen. "Friedel-Crafts acylation of 2-methoxynaphthalene with acetic anhydride catalyzed by phosphotungstic acid in ionic liquid." Bulgarian Chemical Communications 51, no. 2 (2019): 289–95. http://dx.doi.org/10.34049/bcc.51.2.4449.

Full text

Abstract:

The Friedel-Crafts acylation of 2-methoxynaphthalene (2-MN) with acetic anhydride (AA) was carried out in the ionic liquid (IL) butylpyridinium tetrafluoroborate ([BPy]BF4) using phosphotungstic acid (H3PW12O40) as the catalyst. The [BPy]BF4-mediated 2-MN acylation displays good conversion and selectivity towards 1-acyl-2-methoxynaphthalene (1-AC-2-MN), with 70.4% conversion of 2-MN and 96.4% selectivity to 1-AC-2-MN obtained under the optimal conditions. Owing to the rearrangement of 1-AC-2-MN, 6-acyl-2-methoxynaphthalene (6-AC-2-MN) can be detected after 1 h of reaction time, with the highes

APA, Harvard, Vancouver, ISO, and other styles

3

Weike, Su, and Wang Yan. "Friedel-Crafts acylation of furan and thiophene using ytterbimn(IIl) trifluoromethanesulfonate in [BPy][BF4] ionic liquid." Journal of Indian Chemical Society Vol. 82, May 2005 (2005): 398–400. https://doi.org/10.5281/zenodo.5829943.

Full text

Abstract:

College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014. P. R. China <em>E-mail</em> : suweike@zjut.edu.cn           Fax: 86-571-88320752 <em>Manuscript received 24 June 2004, accepted 12 January 2005</em> Friedel-Crafts reactions of furan and thiophene have been catalyzed by ytterhium(lll) trifluoromethanesulfonate in [BPy][BF<sub>4</sub>] (n-hutylpyridinium tetrafluorohorate) ionic liquid to produce intermediates of pharmaceuticals with good yields. The catalyzing system [BPy][BF<sub>4</sub>]/Yh(OTf)<sub>3</sub> could he reused.

APA, Harvard, Vancouver, ISO, and other styles

4

Navarro, Pablo, Marcos Larriba, Jean-Baptiste Beigbeder, Julián García, and Francisco Rodríguez. "Thermal stability and specific heats of {[bpy][BF4] + [bpy][Tf2N]} and {[bpy][BF4] + [4bmpy][Tf2N]} mixed ionic liquid solvents." Journal of Thermal Analysis and Calorimetry 119, no. 2 (2014): 1235–43. http://dx.doi.org/10.1007/s10973-014-4220-6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Song, Dayong, and Jing Chen. "Densities and viscosities for ionic liquids mixtures containing [eOHmim][BF4], [bmim][BF4] and [bpy][BF4]." Journal of Chemical Thermodynamics 77 (October 2014): 137–43. http://dx.doi.org/10.1016/j.jct.2014.05.016.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Jiang, Dong, Yuan Yuan Wang, Yan Nan Xu та Li Yi Dai. "Doebner condensation in ionic liquids [Bmim]BF4 and [Bpy]BF4 to synthesize α, β-unsaturated carboxylic acid". Chinese Chemical Letters 20, № 3 (2009): 279–82. http://dx.doi.org/10.1016/j.cclet.2008.12.005.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

García, Silvia, Marcos Larriba, Julián García, José S. Torrecilla, and Francisco Rodríguez. "Separation of toluene from n-heptane by liquid–liquid extraction using binary mixtures of [bpy][BF4] and [4bmpy][Tf2N] ionic liquids as solvent." Journal of Chemical Thermodynamics 53 (October 2012): 119–24. http://dx.doi.org/10.1016/j.jct.2012.04.027.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Almásy, László, Ana-Maria Putz, Adél Len, Josef Plestil, and Cecilia Savii. "Small-angle scattering investigation of silica xerogels and sonogels prepared with ionic liquid pyridinium tetrafluoroborate." Processing and Application of Ceramics 11, no. 3 (2017): 229–33. http://dx.doi.org/10.2298/pac1703229a.

Full text

Abstract:

Silica matrices were prepared via acid catalysed sol-gel processing augmented with sonocatalysis. As silica precursors, a mixture of tetra-functionalized alkoxide (TMOS) and three-functionalized alkoxide methyl-trimethoxysilane (MTMS) were employed. Ionic liquid N-butyl-3-methylpyridinium tetrafluoroborate ([bmPy][BF4]), was used in various proportions, aiming to catalyse the sol-gel reactions, and to influence the mesoporous silica materials properties, serving as pore template. Small-angle neutron (SANS) and small-angle X-ray scattering (SAXS) techniques were used to explore the xerogels and

APA, Harvard, Vancouver, ISO, and other styles

9

Larriba, Marcos, Silvia García, Pablo Navarro, Julián García, and Francisco Rodríguez. "Physical Characterization of an Aromatic Extraction Solvent Formed by [bpy][BF4] and [4bmpy][Tf2N] Mixed Ionic Liquids." Journal of Chemical & Engineering Data 58, no. 6 (2013): 1496–504. http://dx.doi.org/10.1021/je300972a.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Dao Cai Wang, Dao Cai Wang, Cong Wu Cong Wu, Chi Zhang Chi Zhang, Fang Zhen Zhou Fang Zhen Zhou, and Hang Song and Xiao Peng Liu Hang Song and Xiao Peng Liu. "Efficient Construction of 4-hydroxy-4-arylbutan-2-ones through an Enantioselective Aldol Reaction Mediated by a Recoverable Proline-Based Chiral Ionic Liquid." Journal of the chemical society of pakistan 42, no. 2 (2020): 243. http://dx.doi.org/10.52568/000629.

Full text

Abstract:

Chiral ionic liquid derived from L-proline worked as an excellent organocatalyst for the enantioselective aldol reaction of aromatic aldehydes and acetone. The reaction was conducted in the presence of [BMIM][BF4] as reaction medium. The substrate scope of aldol reaction was successfully explored for various aromatic aldehydes under the mild conditions. The generated aldol products were separated by column chromatography with moderate to good yields as well as enantioselectivities. The main advantage of this catalytic method was that the catalyst and solvent could be recovered at the same time

APA, Harvard, Vancouver, ISO, and other styles

11

Dao Cai Wang, Dao Cai Wang, Cong Wu Cong Wu, Chi Zhang Chi Zhang, Fang Zhen Zhou Fang Zhen Zhou, and Hang Song and Xiao Peng Liu Hang Song and Xiao Peng Liu. "Efficient Construction of 4-hydroxy-4-arylbutan-2-ones through an Enantioselective Aldol Reaction Mediated by a Recoverable Proline-Based Chiral Ionic Liquid." Journal of the chemical society of pakistan 42, no. 2 (2020): 243. http://dx.doi.org/10.52568/000629/jcsp/42.02.2020.

Full text

Abstract:

Chiral ionic liquid derived from L-proline worked as an excellent organocatalyst for the enantioselective aldol reaction of aromatic aldehydes and acetone. The reaction was conducted in the presence of [BMIM][BF4] as reaction medium. The substrate scope of aldol reaction was successfully explored for various aromatic aldehydes under the mild conditions. The generated aldol products were separated by column chromatography with moderate to good yields as well as enantioselectivities. The main advantage of this catalytic method was that the catalyst and solvent could be recovered at the same time

APA, Harvard, Vancouver, ISO, and other styles

12

Putz, Ana-Maria, László Almásy, Zsolt Endre Horváth, and László Trif. "Butyl-Methyl-Pyridinium Tetrafluoroborate Confined in Mesoporous Silica Xerogels: Thermal Behaviour and Matrix-Template Interaction." Materials 14, no. 17 (2021): 4918. http://dx.doi.org/10.3390/ma14174918.

Full text

Abstract:

Organic-inorganic silica composites have been prepared via acid catalyzed sol-gel route using tetramethoxysilan (TMOS) and methyl-trimethoxysilane (MTMS) as silica precursors and n-butyl-3-methylpyridinium tetrafluoroborate ([bmPy][BF4]) as co-solvent and pore template, by varying the content of the ionic liquid (IL). Morphology of the xerogels prepared using the ionic liquid templating agent were investigated using scanning electron microscopy and small angle neutron scattering (SANS). Thermal analysis has been used in order to evaluate the thermal and structural stability of the materials, i

APA, Harvard, Vancouver, ISO, and other styles

13

Park, Jung Hee, O. Yul Kwon, and Keungarp Ryu. "Substrate stabilization and noncompetitive inhibition effects of a water-miscible ionic liquid [BMPy][BF4] in the catalysis of horseradish peroxidase." Biotechnology and Bioprocess Engineering 15, no. 6 (2010): 993–97. http://dx.doi.org/10.1007/s12257-010-0031-1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Zhang, Cheng Cheng, Peng Tian, and Qing Yang Chen. "Determination Content of N-Octyl Pyridine Tetrafluoroborate in Water Using UV-Spectrum." Applied Mechanics and Materials 707 (December 2014): 20–23. http://dx.doi.org/10.4028/www.scientific.net/amm.707.20.

Full text

Abstract:

Ionic Liquids is called also room temperature molten salt, its performance is mainly dependent on composition of cation and anion, and through molecular design the adjustment. And the traditional organic solvent, water, supercritical fluid and chemical reaction than solvent, ionic liquid in the following several aspects to show its prominent advantages. OP-BF4 ionic liquid is prepared by the double decomposition reaction of OPB and NaBF4. The ionic liquid at room temperature used in the experiment has a significant absorption determined by UV spectrum within the range of 200-400nm, the maximum

APA, Harvard, Vancouver, ISO, and other styles

15

Huang, Tao, and Peng Tian. "Determination of N-Heptyl Pyridine Tetrafluoroborate in Acetonitrile Using UV–Spectrum." Applied Mechanics and Materials 707 (December 2014): 12–15. http://dx.doi.org/10.4028/www.scientific.net/amm.707.12.

Full text

Abstract:

Ionic Liquids is called also room temperature molten salt, its performance is mainly dependent on composition of cation and anion, and through molecular design the adjustment. And the traditional organic solvent, water, supercritical fluid and chemical reaction than solvent, ionic liquid in the following several aspects to show its prominent advantages. N-heptyl-pyridine tetrafluoroborate is prepared by the double decomposition reaction of HEPB and NaBF4. The ionic liquid at room temperature used in the experiment has a significant absorption determined by UV spectrum within the range of 200-4

APA, Harvard, Vancouver, ISO, and other styles

16

Yang, Mo, Peng Tian, and Jing Zeng. "UV-Spectrum Analysis of N-Octyl Pyridine Tetrafluoroborate in Ethanol." Applied Mechanics and Materials 707 (December 2014): 24–27. http://dx.doi.org/10.4028/www.scientific.net/amm.707.24.

Full text

Abstract:

Ionic liquids have been attracting extraordinary attention for their unique properties, such as high ionic conductivity, negligible vapor pressure, and high thermal and electrochemical stability, which have made their varied applications in organic chemistry, material science, chemical engineering, physical chemistry, analytical chemistry and biotechnology. N-octyl-pyridine tetrafluoroborate is prepared by the double decomposition reaction of OPB and NaBF4. The ionic liquid at room temperature used in the experiment has a significant absorption determined by UV spectrum within the range of 200

APA, Harvard, Vancouver, ISO, and other styles

17

Kang, Sang Wook. "Long-Term Stable 1-butyl-3-methylimidazolium Hexafluorophosphate/Ag Metal Composite Membranes for Facilitated Olefin Transport." Membranes 10, no. 8 (2020): 191. http://dx.doi.org/10.3390/membranes10080191.

Full text

Abstract:

For the preparation of long-term stable ionic liquid/Ag nanoparticles composites, we compared the separation performance of 1-butyl-3-methylimidazolium tetrafluoroborate (BMIM+BF4−)/Ag, and 1-butyl-3-methylimidazolium hexafluorophosphate (BMIM+PF6−)/Ag composite membranes with time. Separation performance showed that the BMIM+PF6−/Ag metal composite membrane was more stable than the BMIM+BF4−/Ag metal composite membrane for more than 160 h. These differences in long-term stability in BMIM+PF6−/Ag and BMIM+BF4−/Ag metal composite membranes was attributable to the phase separation between ionic

APA, Harvard, Vancouver, ISO, and other styles

18

Zang, Hongjun, Yong Zhang, Meiling Wang, and Bo-Wen Cheng. "A green protocol for synthesis of methylene dioximes promoted by an ionic liquid [bmim]BF4." Journal of Chemical Research 2009, no. 8 (2009): 465–67. http://dx.doi.org/10.3184/030823409x466735.

Full text

Abstract:

The ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate, [bmim]BF4, has been demonstrated to be an effective catalyst for synthesis of methylene dioximes. These reactions proceed with excellent yields under shorter reaction times than other reported methods. Furthermore, the ionic liquid [bmim]BF4 can be recycled and reused without loss of catalytic activity.

APA, Harvard, Vancouver, ISO, and other styles

19

Jangid, Dinesh K., Keshav L. Ameta, Surbhi Dhadda, Anjali Guleria, Prakash G. Goswami, and Chandra L. Khandelwal. "Ionic Liquid Assisted Synthesis of Some 2-Aminobenzenethiols." Letters in Organic Chemistry 16, no. 7 (2019): 550–55. http://dx.doi.org/10.2174/1570178615666181011114454.

Full text

Abstract:

Ionic Liquid assisted efficient synthesis of some 2-aminobenzenethiols has been reported using three different Ionic Liquids (ILs) namely methylimidazolium tetrafluoroborate [MIM]+[BF4]−, methylimidazolium chloride [MIM]+[Cl]− and methylimidazolium nitrate [MIM]+[NO3]−. A comparative study has been carried out for the synthesis of target molecules in the presence and absence of IL, leading to conclusion that maximum yield has been observed with [MIM]+[BF4]−.

APA, Harvard, Vancouver, ISO, and other styles

20

Zhu, Jia M., Kai G. He, Hu Zhang, and Feng Xin. "Effect of Swelling on Carbon Dioxide Adsorption by Poly(Ionic Liquid)s." Adsorption Science & Technology 30, no. 1 (2012): 35–41. http://dx.doi.org/10.1260/0263-6174.30.1.35.

Full text

Abstract:

A two-step swelling method was used for preparing porous poly(ionic liquid)s based on the copolymer of 1-allyl-3-methylimidazolium tetrafluoroborate and acrylonitrile P([AMIM]BF4-AN), the copolymer of 1-allyl-3-methylimidazolium hexafluorophosphate and acrylonitrile P([AMIM]PF6-AN), and poly(vinylbenzyl trimethylammonium) tetrafluoroborate P[VBTMA]BF4. The characteristics of the polymers were assessed via FT-IR spectroscopy, scanning electron microscopy (SEM) and CO2 adsorption. The results indicated that the seed-swelling method was more effective in improving the CO2 adsorption capacity of i

APA, Harvard, Vancouver, ISO, and other styles

21

Dhar, Kalyan, and Syed Fahim. "Investigation of the absorption of CO2 in ionic liquid." Bangladesh Journal of Scientific Research 29, no. 1 (2016): 41–46. http://dx.doi.org/10.3329/bjsr.v29i1.29756.

Full text

Abstract:

Due to environmental concerns, current interest is the development of technologies that may be able to remove CO2 efficiently from exhaust gases and thus avoid its dispersion in the atmosphere. The density functional theory (DFT) calculations with the modern continuum solvation model (IEFPCM-SMD) was used to study the mechanism of CO2 absorption in room temperature ionic liquid such as, [EMIM][BF4] (1-ethyl-3- methylimidazolium tetrafluoroborate). We determine the minimum energy structures and to determine the possible binding sites for CO2 absorption process in [EMIM][BF4]; by comparing the r

APA, Harvard, Vancouver, ISO, and other styles

22

Survilienė, S., S. Eugénio, and R. Vilar. "Chromium electrodeposition from [BMIm][BF4] ionic liquid." Journal of Applied Electrochemistry 41, no. 1 (2010): 107–14. http://dx.doi.org/10.1007/s10800-010-0218-3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Dhar, Kalyan. "Mechanism of the Absorption of CO2 in Ionic Liquid Dimer." Journal of the Asiatic Society of Bangladesh, Science 45, no. 1 (2019): 137–44. http://dx.doi.org/10.3329/jasbs.v45i1.46575.

Full text

Abstract:

The density functional theory (DFT) calculations with the modern continuum solvation model (IEFPCM-SMD) was used to study the mechanism of CO2 absorption at room temperature using ionic liquid such as, [EMIM][BF4] (1-ethyl-3-methylimidazolium tetrafluoroborate) monomer and dimer ionic liquid [IL] dimer comprises two couple of anions and cations, so that more intermolecular interactions are established than in the single IL pair. In this paper, we determined the minimum energy structures and to determine the possible binding sites for CO2 absorption in [EMIM][BF4] monmer and dimer; by comparing

APA, Harvard, Vancouver, ISO, and other styles

24

Da Silva, Elianny, Ginebra Sánchez-García, Alberto Pérez-Calvo, Ramón M. Fernández-Domene, Benjamin Solsona, and Rita Sánchez-Tovar. "Anodizing Tungsten Foil with Ionic Liquids for Enhanced Photoelectrochemical Applications." Materials 17, no. 6 (2024): 1243. http://dx.doi.org/10.3390/ma17061243.

Full text

Abstract:

This research examines the influence of adding a commercial ionic liquid to the electrolyte during the electrochemical anodization of tungsten for the fabrication of WO3 nanostructures for photoelectrochemical applications. An aqueous electrolyte composed of 1.5 M methanesulfonic acid and 5% v/v [BMIM][BF4] or [EMIM][BF4] was used. A nanostructure synthesized in an ionic-liquid-free electrolyte was taken as a reference. Morphological and structural studies of the nanostructures were performed via field emission scanning electron microscopy and X-ray diffraction analyses. Electrochemical charac

APA, Harvard, Vancouver, ISO, and other styles

25

Henderson, Zoë, Jordan Cole, Andrew G. Thomas, et al. "Adsorption and Thermal Stability of Ionic Liquid Multilayers on ZnO Surfaces." Surfaces 8, no. 2 (2025): 29. https://doi.org/10.3390/surfaces8020029.

Full text

Abstract:

Ionic liquids (ILs) have been explored as a way of improving the performance of ZnO-based optoelectronic devices; however, there are few fundamental studies of the IL/ZnO interface. Here, the adsorption of the IL 1-octyl-3-methylimidazolium tetrafluoroborate [C8C1Im][BF4] on ZnO (0001) and ZnO (101¯0) has been studied using synchrotron-based soft X-ray photoelectron spectroscopy. The results indicate that [C8C1Im][BF4] is deposited intact on the ZnO (0001) surface; however, there is some dissociation of [BF4]− anions, resulting in boron atoms attaching to the oxygen atoms in the ZnO surface an

APA, Harvard, Vancouver, ISO, and other styles

26

Grozdanic, Nikola, Mirjana Kijevcanin, Zoran Visak, Dusan Grozdanic, and Slobodan Serbanovic. "Correlation of liquid-liquid equilibria of non-ideal binary systems by NRTL model." Journal of the Serbian Chemical Society 78, no. 6 (2013): 865–72. http://dx.doi.org/10.2298/jsc121002012g.

Full text

Abstract:

Non Random Two Liquid model (NRTL) with three different forms of temperature dependant parameters was used to correlate the liquid - liquid equilibrium data for systems of alcohols with alkanes, and alcohols with two ionic liquids: 1-butyl-2,3-dimethylimidazolium tetrafluoroborate ([bmmim][BF4]) and 1-butyl-3-ethylimidazolium tetrafluoroborate ([beim][BF4]). Different temperature dependences of NRTL parameters were tested on thirteen literature experimental liquid - liquid equilibrium data for binary systems.

APA, Harvard, Vancouver, ISO, and other styles

27

Dzulkipli, Mariah Zuliana, Jamilah Karim, Azizan Ahmad, et al. "The Influences of 1-Butyl-3-Methylimidazolium Tetrafluoroborate on Electrochemical, Thermal and Structural Studies as Ionic Liquid Gel Polymer Electrolyte." Polymers 13, no. 8 (2021): 1277. http://dx.doi.org/10.3390/polym13081277.

Full text

Abstract:

After decades of development, ionic liquid gel polymer electrolytes (ILGPEs) are currently experiencing a renaissance as a promising electrolyte to be used in electrochemical devices. Their inherent tendency towards poor electrochemical properties have limited their applications and commercialization activities. Henceforth, gel polymer electrolyte (GPE) is being introduced to alleviate the abovementioned issues. In this work, the assessment of the ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate [BMIM][BF4] in poly (vinylidene fluoride-hexafluoropropylene) (PVDF-HFP) to form ILGPE wa

APA, Harvard, Vancouver, ISO, and other styles

28

Katsyuba, Sergey A., and Elena E. Zvereva. "What quantum chemical simulations tell us about the infrared spectra, structure and interionic interactions of a bulk ionic liquid." Physical Chemistry Chemical Physics 24, no. 12 (2022): 7349–55. http://dx.doi.org/10.1039/d1cp05745f.

Full text

Abstract:

The IR spectra of bulk ionic liquids [Emim][BF4] and [Emim-d][BF4] are reproduced by simulations for cluster ([Emim][BF4])8, characterized by H-bonds of all CH moieties of the imidazolium ring with [BF4]− anions with enthalpies of 1.2–1.5 kcal mol−1.

APA, Harvard, Vancouver, ISO, and other styles

29

Pan, Zhong Wei, Zi Cheng Cai, Meng Jin Bian, et al. "Temperature Dependent Solid-Liquid Extraction Behavior of Rare Earths Using N-Butyl Pyridinium Hexafluorophosphate with Benzoyl Acetone." Advanced Materials Research 734-737 (August 2013): 906–10. http://dx.doi.org/10.4028/www.scientific.net/amr.734-737.906.

Full text

Abstract:

Temperature dependent solid-liquid extraction (SLE) behavior of six rare earth elements (REs) was investigated using N-butyl pyridinium hexafluorophosphate ([BPy]PF6) as an ionic liquid solvent and benzoyl acetone (HA) as an extractant at 80 °C. Parameters including the amount of [BPy]PF6, HA concentration, extraction time, extraction temperature and pH were investigated and optimized. The extracted species was neutral REA(n-1)Cl (n-1 = 3 or 2) in the REn+-[BPy]PF6-HA SLE system. The extraction percentage of REn+could be 100% at stated pH and HA concentration. The recovery of REn+extracted int

APA, Harvard, Vancouver, ISO, and other styles

30

Zhang, Weiqing, Shuguang Jiang, Tong Qin, Jianfeng Sun, Chaowei Dong, and Qiang Hu. "Effect of Ionic Liquid Surfactants on Coal Oxidation and Structure." Journal of Analytical Methods in Chemistry 2019 (April 22, 2019): 1–9. http://dx.doi.org/10.1155/2019/1868265.

Full text

Abstract:

The effects of six ionic liquids with surfactant property (1-hydroxyethyl-3-methyl imidazolium bis(trifluoromethylsulfonyl)imide ([HOEtMIm][NTf2]), 1-hydroxyethyl-3-methyl imidazolium tetrafluoroborate ([HOEtMIm][BF4]), 1-dodecyl-3- methyl imidazolium bromide ([C12MIm]Br), 1-tetradecyl-3- methyl imidazolium bromide ([C14MIm]Br), trioctyl methyl ammonium chloride ([N8,8,8,1])Cl, and tetraethyl ammonium chloride ([N2,2,2,2]Cl)) on the oxidation characteristics and functional groups of coal were studied by means of critical micelle concentration, surface tension, thermogravimetric analysis, tempe

APA, Harvard, Vancouver, ISO, and other styles

31

Qi, Mingying, Guozhong Wu, Qianmei Li та Yingshe Luo. "γ-Radiation effect on ionic liquid [bmim][BF4]". Radiation Physics and Chemistry 77, № 7 (2008): 877–83. http://dx.doi.org/10.1016/j.radphyschem.2007.12.007.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Guo, Bin, Yu Song, Wei Zhao Liang, Dan Dan Zhang, Wei Han, and Wei Song. "Viscosity of Methylbenzene in [Bmim][BF₄] and [Bmim][PF₆] Ionic Liquids." Advanced Materials Research 864-867 (December 2013): 125–30. http://dx.doi.org/10.4028/www.scientific.net/amr.864-867.125.

Full text

Abstract:

To well know the properties of ionic liquid mixtures, the viscosity of the binary mixtures containing the methylbenzene and imidazole ionic liquids (1-butyl-3-methylimidazolium tetrafluoroborate [Bmim][BF4] or 1-butyl-3-methylimidazolium hexafluorophosphate [Bmim][PF6]) were measured. Within the temperature range from 298.15 K to 308.15 K, the viscosity of the four binary systems decreased sharply as the increase of temperature. The viscosity decreased slowly in the temperature range from 308.15 K to 338.15 K. The viscosity also decreased with decreasing of the mole fraction of ionic liquid. T

APA, Harvard, Vancouver, ISO, and other styles

33

Fan, Xuesen, Xueyuan Hu, Xinying Zhang, and Jianji Wang. "Ionic Liquid Promoted Knoevenagel and Michael Reactions." Australian Journal of Chemistry 57, no. 11 (2004): 1067. http://dx.doi.org/10.1071/ch04060.

Full text

Abstract:

The utilization of the ionic liquid [bmim][BF4] as both reaction medium and promoter for the Knoevenagel condensation and Michael addition reactions is described in this paper. Through these reactions, several useful electrophilic alkenes and chromene derivatives are obtained in high yields. The advantages of these two novel procedures include their environmentally benign nature, atom economy, simple operation process, and mild reaction conditions.

APA, Harvard, Vancouver, ISO, and other styles

34

Katayama, Yasushi, Shodai Kato, and Nobuyuki Serizawa. "Electrochemical Behavior of Tris(2,2'-bipyridine)Iron Complex in 1-Butyl-1-Methylpyrrolidinium Bis(fluorosulfonyl)Amide Ionic Liquid in the Presence and Absence of Lithium Ion." ECS Meeting Abstracts MA2023-02, no. 56 (2023): 2730. http://dx.doi.org/10.1149/ma2023-02562730mtgabs.

Full text

Abstract:

Ionic liquids composed of bis(fluorosulfonyl)amide (FSA–) have been investigated as the promising electrolytes for rechargeable batteries because of the formation of favorable solid electrolyte interphase (SEI) for some alkali metal ions in addition to relatively low viscosity. The FSA–-based ionic liquids are also considered to be applied to redox flow batteries, which utilize the electrode reactions of soluble species on inert electrodes. However, few electrode reactions of dissolved species have been explored in the FSA–-based ionic liquids. On the other hand, ion-conductive membranes are n

APA, Harvard, Vancouver, ISO, and other styles

35

Liu, Hong, Meng Yang Wang, and Wei Ran Cao. "Synthesis of Nanosized HMS Mesoporous Molecular Sieve in an Ionic Liquid-Water Mixture." Advanced Materials Research 236-238 (May 2011): 2110–13. http://dx.doi.org/10.4028/www.scientific.net/amr.236-238.2110.

Full text

Abstract:

The hexagonal mesoporous silica (HMS) nano-particles were prepared in mixture of 1-butyl-3-methyl-imidazolium tetrafluoroborate (BMIM+BF4-) ionic liquid and water by a sol-gel method. The structure and morphology of obtained materials were characterized by X-ray powder diffraction (XRD), N2adsorption-desorption, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and dynamic light scattering (DLS). The influence of the amount of BMIM+BF4-was investigated. It was shown that the synthesized materials have discrete and uniform spherical morphology with the size in the range

APA, Harvard, Vancouver, ISO, and other styles

36

Oliveira, Ângelo Anderson Silva de, Dulce Maria de Araújo Melo, Heloísa Pimenta de Macedo, et al. "Synthesis and characterization of the ionic liquid 1-methyl-3-(2,6-(S)-dimethyloct-2-ene)-imidazol tetrafluoroborate." Research, Society and Development 10, no. 10 (2021): e393101018988. http://dx.doi.org/10.33448/rsd-v10i10.18988.

Full text

Abstract:

Ionic liquids (ILs) are good electrical conductors and organic liquid compounds at room temperature, with potential applicability in water electrolysis for H2 generation. The objective of this work is to describe the synthesis, characterization and study of the feasibility of ionic liquid 1-methyl-3-(2,6-(S)-dimethyloct-2-ene)-imidazolium tetrafluoroborate (MDI-BF4) as electrolyte to produce hydrogen through electrolysis of water. The synthesized MDI-BF4 was characterized by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC), mid-infrared spectroscopy with Fourier Tra

APA, Harvard, Vancouver, ISO, and other styles

37

Whitehead, Jacqueline A., Geoffrey A. Lawrance, and Adam McCluskey. "Analysis of Gold in Solutions Containing Ionic Liquids by Inductively Coupled Plasma Atomic Emission Spectrometry." Australian Journal of Chemistry 57, no. 2 (2004): 151. http://dx.doi.org/10.1071/ch03198.

Full text

Abstract:

The analysis of gold by inductively coupled plasma atomic emission spectrometry (ICP-AES) in aqueous solution in the presence of up to 50% w/v of ionic liquid is reported. The ionic liquids investigated contain the 1-butyl-3-methyl-imidazolium (bmIm) cation with the anions Cl–, BF4–, HSO4–, or N(CN)2–. A facile route to the HSO4– salt is also described. The presence of ionic liquids alter the nebulization efficiency and sample transport properties, and the AES signal intensity and apparent concentration of gold in solution is usually suppressed as a result, principally, of increased viscosity

APA, Harvard, Vancouver, ISO, and other styles

38

Wang, Mei, Liqi Zhang, Linxia Gao, Kewu Pi, Junying Zhang, and Chuguang Zheng. "Improvement of the CO2 Absorption Performance Using Ionic Liquid [NH2emim][BF4] and [emim][BF4]/[bmim][BF4] Mixtures." Energy & Fuels 27, no. 1 (2012): 461–66. http://dx.doi.org/10.1021/ef301541s.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Chinnappan, Amutha, Dahye La, and Hern Kim. "Green Chemical Conversion of Carboxylic Acid to Ester in Dicationic Ionic Liquid 1,1’-decane-1,10-diylbis (3-butylpyridinium) dibromide." Advanced Materials Research 622-623 (December 2012): 1027–29. http://dx.doi.org/10.4028/www.scientific.net/amr.622-623.1027.

Full text

Abstract:

Esterification of carboxylic acids with alkyl halides were studied using dicationic ionic liquid 1,1’-decane-1,10-diylbis (3-butylpyridinium) dibromide-[C10(Bpy)2] (Br)2 in the presence of triethylamine. Good conversion rates and yields were obtained. The ionic liquid could be reused after removal of water under vacuum.

APA, Harvard, Vancouver, ISO, and other styles

40

Yang, Ming Shan, Ying Quan, Wen Tang, and Lin Kai Li. "Green Preparation of Ultra-Fine Silver Particles in Ionic Liquid." Applied Mechanics and Materials 190-191 (July 2012): 491–95. http://dx.doi.org/10.4028/www.scientific.net/amm.190-191.491.

Full text

Abstract:

A room-temperature ionic liquid, 1-n-butyl-3-methylimidazolium tetrafluoroborate([bmim]BF4), was synthesized with two-step method and its structure was characterized by IR, H-NMR. Putting p-benzenediol and AgNO3 ethanol solution into [bmim] BF4, ultra-fine silver powder were prepared successfully in this paper. The effects of the temperature and material mol ratio of AgNO3 and p-benzenediol on the shape of products were studied. The products were characterized by XRD, SEM, IR and TEM. The results showed that the particle size of silver was much smaller and in the range of nanometers, and had n

APA, Harvard, Vancouver, ISO, and other styles

41

Chereches, E. I., and A. A. Minea. "Experimental Study on Electrical Conductivity of Several [C4mim][BF4] Ionic-Liquid-Based Nanocolloids." Nanomaterials 13, no. 7 (2023): 1224. http://dx.doi.org/10.3390/nano13071224.

Full text

Abstract:

Nanocolloids are receiving considerable attention in regard to their properties and future applications, especially as heat transfer fluids and phase change materials for energy storage. Additionally, studies on ionic liquids and ionic-liquid-based nanocolloids are at the forefront of research preoccupations. This study aims to shed light on applications of nanocolloids based on [C4mim][BF4] ionic liquid, giving insight into the electrical conductivity of [C4mim][BF4] ionic liquid, as well as three types of nanoparticles suspended in this particular ionic liquid, namely Al2O3 (alumina), ZnO (z

APA, Harvard, Vancouver, ISO, and other styles

42

Zou, Jianzhong, Fengping Yi, Lirong Zhang, and Zhen Wang. "Facile Aldolization Catalyzed by Ionic Liquid [4-Sulfbmpyrazine][BF4]." Asian Journal of Chemistry 25, no. 12 (2013): 6643–46. http://dx.doi.org/10.14233/ajchem.2013.14396.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Alonso, Luisa, Alberto Arce, María Francisco, Oscar Rodríguez, and Ana Soto. "Gasoline desulfurization using extraction with [C8mim][BF4] ionic liquid." AIChE Journal 53, no. 12 (2007): 3108–15. http://dx.doi.org/10.1002/aic.11337.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Xiong, Ying, and Min Yang. "Synthesis of the Carboxyl and Pyridine Functional Ionic Liquids." Applied Mechanics and Materials 513-517 (February 2014): 246–50. http://dx.doi.org/10.4028/www.scientific.net/amm.513-517.246.

Full text

Abstract:

The effects of different solvents on synthesis of base functional ionic liquid, butyl pyridinium hydroxide ([bPy]OH), from butyl pyridinium bromine ([bPy]Br) were investigated systematically using KOH/NaOH as the base agent and strong base anion exchange resin. The results showed that the yield of [bPy]OH achieved 35% with the molar ratio of 1:1.1 ([bPy]Br to NaOH) using dichloromethane under room temperature. With isopropanol and 8 h of the reaction time, the yield could reach 88% with byproducts. The yield of 97% without byproduct was achieved by using strong base anion exchange resin in col

APA, Harvard, Vancouver, ISO, and other styles

45

Zhang, Yong, Hong Jun Zang, and Bo Wen Cheng. "A Green and Highly Efficient Protocol for Hydrolysis of Substituted Benzyl Chloride Using Ionic Liquid [bmim]BF₄ as Phase-Transfer Catalyst." Advanced Materials Research 113-116 (June 2010): 1990–92. http://dx.doi.org/10.4028/www.scientific.net/amr.113-116.1990.

Full text

Abstract:

Alkaline hydrolysis of substituted benzyl chloride (BzCl) in ionic liquid [bmim]BF4 is investigated. The presence of the [bmim]BF4, increased the solubility of substituted BzCl in aqueous solutions and increased the selectivity toward the formation of benzyl alcohol. The main advantages of the present procedure are shorter time, higher yields, benignancy to environment and no by-products.

APA, Harvard, Vancouver, ISO, and other styles

46

Paljevac, Muzafera, Maja Habulin, and Zeljko Knez. "Ionic liquids as (co)solvents for enzymatic reactions." Chemical Industry and Chemical Engineering Quarterly 12, no. 3 (2006): 181–86. http://dx.doi.org/10.2298/ciceq0603181p.

Full text

Abstract:

Ionic liquids are low melting point salts that represent an exciting new class of reaction solvents. Many reactions show advantages when carried out in ionic liquids, either with regard to enhanced reaction rates, improved selectivity, or easier reuse of catalysts. To ascertain the influence of ionic liquids on the enzyme activity, three different ionic liquids 1-butyl-3-methylimidazolium chloride ([bmim] [CI]) 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim] [PF6]) and 1-butyl-3-methylimidazolium tetrafluoroborate ([bmim][BF4]) were synthesized and investigated as potential media for t

APA, Harvard, Vancouver, ISO, and other styles

47

ZHANG, Dingjun, Yuxian CHEN, Xue BAI, Xianwen LI, Yingxia MA, and Zhenbin CHEN. "Preparation and Electrochemical Testing of Polyaniline (PANI) Nanoparticles with Uniform Morphology and Good Dispersion in a Water-task-specific Ionic Liquid Medium." Materials Science 25, no. 3 (2019): 297–302. http://dx.doi.org/10.5755/j01.ms.25.3.19145.

Full text

Abstract:

Polyaniline (PANI) nanoparticles with uniform morphology and good dispersion were prepared by using the task-specific Ionic Liquid (IL) 1-ester-3-methyl-imidazolium tetrafluoroborate ([EAMIM]BF4) as a soft template by chemical oxidation in a water-IL medium. The morphological, structural and electronic properties of polyaniline (PANI) products, controlled by the IL [EAMIM]BF4, were synthesized and investigated. Products were characterized by SEM, FT-IR and the measurements of conductivity. The addition of [EAMIM]BF4 strongly influenced the morphology, uniformity, and conductivity of the PANI.

APA, Harvard, Vancouver, ISO, and other styles

48

Wen, Xinmin. "Williamson reaction in [bmim][BF4]: Clean and facile synthesis of aryl benzyl ethers." Journal of Chemical Research 2005, no. 10 (2005): 663–64. http://dx.doi.org/10.3184/030823405774663147.

Full text

Abstract:

1-Butyl-3-methylimidazolium tetrafluoroborate ([bmin][BF4]) has been demonstrated to be a suitable reaction medium for the synthesis of aryl benzyl ethers by the Williamson reaction. A variety of phenols react with benzyl chloride in [bmim][BF4] to afford the desired ethers in satisfactory yields. The reaction proceeds cleanly and the use of the ionic liquid allows for easy product isolation.

APA, Harvard, Vancouver, ISO, and other styles

49

Fan, Xuesen, Yanzhen Li, Xinying Zhang, Guirong Qu, and Jianji Wang. "A novel and green version of the Passerini reaction in an ionic liquid ([bmim][BF4])." Canadian Journal of Chemistry 84, no. 5 (2006): 794–99. http://dx.doi.org/10.1139/v06-070.

Full text

Abstract:

The Passerini three-component condensation among a carboxylic acid (1), an aldehyde or ketone (2), and an isocyanide (3) was carried out for the first time in an ionic liquid, [bmim][BF4], and a series of acyloxycarboxamides were obtained through this reaction. The method presented herein has the advantages of high efficiency, a greener nature, and a simple operational procedure. Moreover, the ionic liquid can be easily recovered and reused for several runs without obvious loss of efficiency.Key words: Passerini reaction, acyloxycarboxamides, ionic liquid, green synthesis.

APA, Harvard, Vancouver, ISO, and other styles

50

Shiflett, Mark B., and A. Yokozeki. "Liquid−Liquid Equilibria in Binary Mixtures of 1,3-Propanediol + Ionic Liquids [bmim][PF6], [bmim][BF4], and [emim][BF4]." Journal of Chemical & Engineering Data 52, no. 4 (2007): 1302–6. http://dx.doi.org/10.1021/je700037z.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!