scholarly journals Choline chloride–zinc chloride ionic liquid as a green template for the sol–gel synthesis of mesoporous titania

RSC Advances ◽  
2017 ◽  
Vol 7 (17) ◽  
pp. 10081-10091 ◽  
Author(s):  
T. Preethi ◽  
M. P. Padmapriya ◽  
B. Abarna ◽  
G. R. Rajarajeswari
Keyword(s):  
Ionic Liquid ◽  
Zinc Chloride ◽  
Choline Chloride ◽  
Sol Gel ◽  
Mesoporous Titania ◽  
Anatase Titania ◽  
Sol Gel Synthesis

Choline chloride–zinc chloride ionic liquid has been used as a green template to synthesis highly crystalline mesoporou anatase titania.

Ionogels as drug delivery system: one-step sol–gel synthesis using imidazolium ibuprofenate ionic liquid

2010 ◽  
Vol 46 (2) ◽  
pp. 228-230 ◽  
Author(s):  
Lydie Viau ◽  
Corine Tourné-Péteilh ◽  
Jean-Marie Devoisselle ◽  
André Vioux
Keyword(s):  
Drug Delivery ◽  
Ionic Liquid ◽  
Drug Delivery System ◽  
Delivery System ◽  
Sol Gel ◽  
One Step ◽  
Sol Gel Synthesis

scholarly journals The role of the ionic liquid C6C1ImTFSI in the sol–gel synthesis of silica studied using in situ SAXS and Raman spectroscopy

2015 ◽  
Vol 17 (15) ◽  
pp. 9841-9848 ◽  
Author(s):  
Moheb Nayeri ◽  
Kim Nygård ◽  
Maths Karlsson ◽  
Manuel Maréchal ◽  
Manfred Burghammer ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Ionic Liquid ◽  
Sol Gel ◽  
Chemical Changes ◽  
X Ray ◽  
X Ray Scattering ◽  
Sol Gel Synthesis ◽  
Ray Scattering

Structural and chemical changes during the sol–gel synthesis of silica using an ionic liquid are investigatedin situand simultaneously by X-ray scattering and μ-Raman spectroscopy.

Low-Temperature Fabrication of Mesoporous Titania Thin Films

MRS Advances ◽  
2017 ◽  
Vol 2 (43) ◽  
pp. 2315-2325 ◽  
Author(s):  
Lin Song ◽  
Volker Körstgens ◽  
David Magerl ◽  
Bo Su ◽  
Thomas Fröschl ◽  
...  
Keyword(s):  
Low Temperature ◽  
Uv Irradiation ◽  
Sol Gel ◽  
Composite Films ◽  
Grazing Incidence ◽  
Mesoporous Titania ◽  
Vis Spectroscopy ◽  
Titania Films ◽  
Polymer Template ◽  
Sol Gel Synthesis

ABSTRACTMesoporous titania films are prepared via the polymer-template assisted sol-gel synthesis at low temperatures, using the titania precursor ethylene glycol-modified titanate (EGMT) and the diblock copolymer polystyrene-block-polyethyleneoxide (PS-b-PEO). UV-irradiation is chosen as a low temperature technique to remove the polymer template and thereby to obtain titania sponge-like nanostructures at processing temperatures below 100 °C. After different UV irradiation times, ranging for 0 h to 24 h, the surface and inner morphologies of the titania films are studied with scanning electron microscopy (SEM) and grazing incidence small-angle x-ray scattering (GISAXS), respectively. The evolution of the band gap energies is investigated using ultraviolet/visible (UV/Vis) spectroscopy. The findings reveal that 12 h UV-treatment is sufficient to remove the polymer template from the titania/PS-b-PEO composite films with a thickness of 80 nm, and the determined bad gap energies indicate an incomplete crystallization of the titania nanostructures.

scholarly journals Comparison of the Ionic Conductivity Properties of Microporous and Mesoporous MOFs Infiltrated with a Na-Ion Containing IL Mixture

2020 ◽  
Author(s):  
Joshua Tuffnell ◽  
Jędrzej K. Morzy ◽  
Rui Tan ◽  
Qilei Song ◽  
Caterina Ducati ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Ionic Conductivity ◽  
Electrochemical Impedance ◽  
Metal Organic Framework ◽  
Sol Gel ◽  
Ionic Conductivities ◽  
Zeolitic Imidazolate Framework ◽  
Hierarchically Porous ◽  
Framework Materials ◽  
Sol Gel Synthesis

IL@MOF (IL: ionic liquid; MOF: metal-organic framework) materials have been proposed as a candidate for solid-state electrolytes, combining the inherent non-flammability and high thermal and chemical stability of the ionic liquid with the host-guest interactions of the MOF. In this work, we compare the structure and ionic conductivity of a sodium ion containing IL@MOF composite formed from a microcrystalline powder of the zeolitic imidazolate framework (ZIF), ZIF-8 with a hierarchically porous sample of ZIF-8 containing both micro- and mesopores from a sol-gel synthesis. Although the crystallographic structures were shown to be the same by X-ray diffraction, significant differences in particle size, packing and morphology were identified by electron microscopy techniques which highlight the origins of the hierarchical porosity. After incorporation of Na0.1EMIM0.9TFSI (abbreviated to NaIL; EMIM = 1-ethyl-3-methylimidazolium; TFSI = bis(trifluoromethylsulfonyl)imide), the hierarchically porous composite exhibited a 40 % greater filling capacity than the purely microporous sample which was confirmed by elemental analysis and digestive proton NMR. Finally, the ionic conductivity properties of the composite materials were probed by electrochemical impedance spectroscopy. The results showed that despite the 40 % increased loading of NaIL in the NaIL@ZIF-8micro sample, the ionic conductivities at 25 °C were 8.4x10-6 and 1.6x10-5 S cm-1 for NaIL@ZIF-8meso and NaIL@ZIF-8micro respectively. These results exemplify the importance of the long range, continuous ion pathways contributed by the microcrystalline pores, as well as the detrimental effect of discontinuous and tortuous mesoporous pathways which show a limited contribution to the overall ionic conductivity. <br>

Sol–Gel Synthesis of MgO Nanoparticles Using Ionic Liquid- [BMIM]BF4− as Capping Agent

2012 ◽  
Vol 4 (1) ◽  
pp. 100-104 ◽  
Author(s):  
Mahalingam Sundrarajan ◽  
Raja Gopal Rajiv Gandhi ◽  
Joghee Suresh ◽  
Samayanan Selvam ◽  
Sundaram Gowri
Keyword(s):  
Ionic Liquid ◽  
Sol Gel ◽  
Capping Agent ◽  
Mgo Nanoparticles ◽  
Sol Gel Synthesis
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