(Keynote) Theoretical Deconstruction of the X-ray Structure Function Exposes Polarity Alternations in Room Temperature Ionic Liquids

2013 ◽  
Vol 50 (11) ◽  
pp. 301-307 ◽  
Author(s):  
H. K. Kashyap ◽  
C. J. Margulis
2019 ◽  
Vol 25 (3) ◽  
pp. 276-280
Author(s):  
Canan URAZ

In this study, electroless nickel (EN) plating on acrylonitrile butadiene styrene (ABS) engineering plastic using room temperature ionic liquids (RTIL) was studied. Electroless plating is a fundamental step in metal plating on plastic. This step makes the plastic conductive and makes it possible to a homogeneous and hard plating without using any hazardous and unfriendly chemical such as palladium, tin, etc. In the industry there are many distinct chemical materials both catalysts and activation solutions for the electroless bath which is one of the most important parts of the process. In this study the effects of the ionic liquid, plating time, and sand paper size were investigated on electroless nickel plating. The etching and the plating processes were performed with environmentally friendly chemicals instead of the chromic and sulphuric acids used in the traditional processes. Experiments were carried out with and without ionic liquid, EMIC, 1-ethyl-3-methyl imidazolium chloride (C6H11N2Cl), and with 400, 500 and 800 grit sandpaper with the application of the sand attrition process and 70, 80, and 90 °C bath temperatures with 30, 60, and 90 minutes of deposition time. The surface morphology and the thickness of deposit analysis were performed using the Fischer scope X-Ray XDL-B System, X-ray Diffraction (XRD), and Scanning Electron Microscopy (SEM). Due to the results of the experiments and analysis, the electroless nickel plating on ABS plastic was a success. The best plating was obtained at 5.010 μm as the maximum plating thickness, at 90 min of plating time and 80 °C as the plating bath temperature for electroless nickel plating on ABS plastic whit the surface activated with 800 grit sandpaper using EMIC ionic liquid. DOI: http://dx.doi.org/10.5755/j01.ms.25.3.20116


2010 ◽  
Vol 114 (50) ◽  
pp. 16838-16846 ◽  
Author(s):  
Harsha V. R. Annapureddy ◽  
Hemant K. Kashyap ◽  
Pablo M. De Biase ◽  
Claudio J. Margulis

2011 ◽  
Vol 287-290 ◽  
pp. 529-534 ◽  
Author(s):  
Feng Liu ◽  
Rong Yi Lin ◽  
Zhi Wang ◽  
Jie Liang

Barium carbonate (BaCO3) crystals with different morphologies were synthesized using BaCl2·2H2O by a carbonation method in water/ionic liquids (ILs) mixed solvents. The as-prepared products were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM), and the results indicated that the types of ILs and the mole ratio of water to ILs played important roles in determining the morphologies of the products. The analysis of the XRD pattern showed that ILs had an influence on the crystallinity of BaCO3. When the mole ratio of water to ILs increased, the size of BaCO3 crystals increased and the morphology gradually changed from spherical to oval and rod-like. A microemulsion model was employed to explain this mechanism.


2011 ◽  
Vol 115 (30) ◽  
pp. 9507-9508 ◽  
Author(s):  
Harsha V. R. Annapureddy ◽  
Hemant K. Kashyap ◽  
Pablo M. De Biase ◽  
Claudio J. Margulis

2011 ◽  
Vol 236-238 ◽  
pp. 2008-2011
Author(s):  
Liu Zhi ◽  
Yan Song ◽  
Li Ping Deng ◽  
Xing Hai Liu

α-MoO3microspheres assembled by nanorods were synthesized in room temperature ionic liquids (bmimBF4: 1-butyl-3-methylimidazolium tetrafluoroborate) by microwaves heating method. The microstructure and morphology of the products were characterized by the techniques of X-ray powder diffraction (XRD), Fourier-transform spectrometer (FTIR), scanning electron microscope (SEM), transmission electron microscope (TEM). The influence factor such as the amount of ammonium heptamolybdenum tetrahydrate in ionic liquids was investigated in detail. The possible reaction mechanism was also discussed. It was demonstrated that the ionic liquid could act as template agent for the formation of α-MoO3microspheres. The present synthesis route is very simple and fast, and could be extended to the fabrication of other nanomaterials in ionic liquids.


Soft Matter ◽  
2017 ◽  
Vol 13 (38) ◽  
pp. 6947-6955 ◽  
Author(s):  
Diego Pontoni ◽  
Julia Haddad ◽  
Marco Di Michiel ◽  
Moshe Deutsch

X-ray-resolved, chain-length-driven emergence and evolution of nanostructuring in a broad homologous series of room-temperature ionic liquids.


2004 ◽  
Vol 59 (7) ◽  
pp. 763-770 ◽  
Author(s):  
Johanna Kärkkäinen ◽  
Janne Asikkala ◽  
Risto S. Laitinen ◽  
Marja K. Lajunen

The preparation of room-temperature ionic liquids 1-butyl-3-methylimidazolium chloride, hexafluorophosphate, and dicyanamide by microwave-assisted reaction in non-solvent and solvent conditions has been studied in this contribution. A special emphasis is put on the effect of the reaction temperature on the purity of ionic liquids that was monitored by electrospray ionisation mass spectrometry and 1H NMR. The X-ray structure of 1-butyl-3-methylimidazolium chloride is presented.


2014 ◽  
Vol 5 (7) ◽  
pp. 1175-1180 ◽  
Author(s):  
Hiroshi Abe ◽  
Takahiro Takekiyo ◽  
Machiko Shigemi ◽  
Yukihiro Yoshimura ◽  
Shu Tsuge ◽  
...  

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