Articles written in Bulletin of Materials Science

    • Effect of surface modification of TiO$_2$ on the electrochemical performance of lithium–sulfur cell


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      Surface of TiO$_2$ is known to chemically bind the polysulfides in Li–S cell. In the present study, the effect of surface defects or oxygen vacancies in TiO$_2$ present as a composite with sulfur cathode on the performance of Li–S cell wasinvestigated by using NaBH$_4$ reduced (black colour) TiO$_2$ and pristine (white) TiO$_2$ in cathode. Results show that former is superior in performance.

    • Characteristics of ionic adsorption on silica nanoparticles and its impact on the long term stability of dye-sensitized solar cells


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      Quasi-solid electrolytes based on silica nanopowder are well known in literature and these electrolytes are able to match in performance with that of liquid electrolytes. However, contrasting results are observed in literatureregarding stability of dye-sensitized solar cells (DSSCs) with most of the reported articles projecting silica-loaded quasisolid electrolyte-based cells as a stable alternative to liquid electrolyte-based cells, while a few others contradicting thesame. The present study demonstrates the effect of ageing under heat (60$^{\circ}$C) and illumination on the performance of liquid electrolyte and silica-loaded electrolyte-based DSSCs. It has been observed that DSSC based on silica-loaded electrolyte are less stable than DSSC based on liquid electrolyte even though independent study on both electrolytes by thermal analysis shows silica-loaded electrolyte to be more stable than liquid electrolyte. Segregation of silica in electrolyte has been confirmed through cryo-field emission gun-scanning electron microscopy. Zeta potential measurements show that ions are desorbed from the surface of silica on ageing under heat and illumination.

  • Bulletin of Materials Science | News

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

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