Structural and electrochromic properties of Fe$_{2}$(SO$_{4})_{3}$ nanostructures prepared by template assisted method

ORAL

Abstract

Oxides containing polyanions such as XO$_{4}^{2-}$ (X = S, Mo, P and W) as lithium insertion hosts are promising cathode materials due to their high thermal stability. However, the larger separation of the transition metal ions can be expected to reduce the electron mobility. As observed in LiFePO$_{4}$, this can be overcome either by coating the cathode materials with carbon or by decreasing the particle size. We have prepared nanowires of NASICON type structure and platelets of monoclinic Fe$_{2}$(SO$_{4})_{3}$ by template assisted electro deposition. These structures were grown on stainless steel substrates and are characterized by XPS, HRTEM, and XRD analysis. Both NASICON and monoclinic Fe$_{2}$(SO$_{4})_{3}$ structures are very porous and are comprised of nanoparticles leading to a high lithium insertion capacity.

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Authors

  • Sahana M.B.

    Wayne State University, Wayne State University, Detroit, MI

  • Sudakar C.

    Department of Physics and Astronomy, Wayne State University, Wayne State University, Wayne State University, Detroit, MI

  • J.A. Summers

    Duke University Medical Physics Graduate Program, Southwest Research Institute, Kettering University, Department of Physics and Astronomy, Wayne State University, Wayne State University, University of Nebraska, University of Stockholm, University of Michigan-Dearborn, Wayne State University, Detroit, MI, Cornell Univ., Air Force Research Labs, Univ. Akron, National Center for Manufacturing Sciences (NCMS), Youngstown State U, Dept. Physics, Department of Natural Sciences, University of Michigan-Dearborn, Department of Physics and Astronomy, Wayne State University, Detroit, Bhabha Atomic Research Centre, Hyderabad, India, NIST Center for Neutron Research, NIST, Gaithersburg, Maryland, Max Planck Institute for Solid State Research, Michigan State University

  • J.A. Summers

    Duke University Medical Physics Graduate Program, Southwest Research Institute, Kettering University, Department of Physics and Astronomy, Wayne State University, Wayne State University, University of Nebraska, University of Stockholm, University of Michigan-Dearborn, Wayne State University, Detroit, MI, Cornell Univ., Air Force Research Labs, Univ. Akron, National Center for Manufacturing Sciences (NCMS), Youngstown State U, Dept. Physics, Department of Natural Sciences, University of Michigan-Dearborn, Department of Physics and Astronomy, Wayne State University, Detroit, Bhabha Atomic Research Centre, Hyderabad, India, NIST Center for Neutron Research, NIST, Gaithersburg, Maryland, Max Planck Institute for Solid State Research, Michigan State University