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  1. No Access

    Article

    Effect of temperature and frequency on the dielectric properties of cellulose nanofibers from cotton

    The present work has been carried out to evaluate the dielectric properties and ac-electrical conductivity of cellulose nanofibers. The cellulose nanofibers (CNF) described in this work are the ones extracted ...

    Jasmine Jose, Vinoy Thomas, Jancy John… in Journal of Materials Science: Materials in… (2021)

  2. No Access

    Article

    Effect of Structural Water on the Dielectric Properties of Hydrated Tungsten Trioxide

    Layered hydrated tungsten trioxide with orthorhombic phase is prepared by a hydrothermal method in an acidic environment. Dielectric studies reveal the presence of space charge and ionic polarizations in the a...

    M. Manuja, K. V. Sarath, Tintu Thomas, Joshy Jose… in Journal of Electronic Materials (2020)

  3. No Access

    Article

    An ultra-low hydrolysis sol-gel route for titanosilicate xerogels and their characterization

    In this work TiO2-SiO2 xerogels were prepared through an ultra low hydrolysis method using titanium and silicon alkoxide. The samples were heat treated to 500°C. The xerogels were characterized using TGA/DTA, FTI...

    Toney Fernandez, Gijo Jose, Siby Mathew… in Journal of Sol-Gel Science and Technology (2007)

  4. No Access

    Article

    Structural Evolution and Fluorescence Properties of Dy3+: Silica Matrix

    Silica glasses doped with Dy3+ were prepared by sol–gel method. The FTIR and thermo gravimetric analysis (TGA) clearly show complete densification (density = 2.2 gm/cm3) of the gels around 1000∘C. The fluorescenc...

    Vinoy Thomas, Gijo Jose, Gin Jose, P. R. Biju… in Journal of Sol-Gel Science and Technology (2005)