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    ILC (ionic liquid colloids) based on p(4-VP) (poly(4-vinyl pyridine)) microgels: Synthesis, characterization and use in hydrogen production
    (Pergamon-Elsevier Science Ltd, 2014) Şahiner, Nurettin; Turhan, Tuğce; Lyon, L. Andrew
    In this study for the first time p(4-VP) (poly(4-vinyl pyridine)) colloidal ionic liquid particles derived from 4-VP (4-vinyl pyridine) are reported, used in the preparation of a catalyst system by loading metal salts such as CoCI2 and NiCl2 from ethyl alcohol solutions into the modified p(4-VP) particles, and used for hydrogen generation from NaOH-free hydrolysis of NaBH4. Colloidal ionic liquids containing 0.054 mmol Co and Ni were used in NaOH-free hydrolysis of 0.30 g NaBH4 in 50 mL water at 40 degrees C and 1000 rpm mixing rate. The reaction rates relating to hydrolysis of NaBH4 were 3148 (mL H-2) (min)(-1) (g of Co)(-1) for Co, and 1803 (mL H2) (min)(-1) (g of Ni)(-1) for Ni. The effect of metal loading time, NaBH4 concentration, temperature, and kinetic parameters were also investigated. The activation energy, enthalpy, and activation entropy for the reaction of NaBH4 in the presence of the colloidal dicationic catalyst system were calculated as 43.98 kJ/mol, 40.38 kJ/mol, and -178.22 J/mol.K, respectively. (C) 2013 Elsevier Ltd. All rights reserved.
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    Öğe
    Ionic liquid colloids (ILC) based on polymeric microgel: Synthesis and characterizations
    (Amer Chemical Soc, 2013) Şahiner, Nurettin; Turhan, Tuğce; Lyon, L. Andrew
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    Synthesis and Properties of Inulin Based Microgels
    (Elsevier Science Bv, 2014) Şahiner, Nurettin; Sağbaş, Selin; Yoshida, Hiroaki; Lyon, L. Andrew
    Cross-linked inulin (X-inulin) microparticles were synthesized in reverse micelles using water-in-oil microemulsion polymerization. Linear inulin was crosslinked with divinyl sulfone (DVS) in a sodium bis(2-ethylhexyl) sulfosuccinate (AOT) inverse microemulsion under basic conditions. These particles were demonstrated to be excellent scaffolds for the in situ synthesis of CdS quantum dots (Q-dots). The inulin-based particles were shown to be non-cytotoxic in fibroblast cell culture, and degradable under acidic and basic conditions. Furthermore, gallic acid and caffeine were used as model drugs for loading and release studies from these particles, illustrating their potential as drug carriers with controlled release. (C) 2014 Published by Elsevier B.V.