Solid State Oxide Fluorides

1
Solid State Oxide Fluorides
Kenneth R. Poeppelmeier, Northwestern University,
DMR 0604454
Ag4V2O6F2 (SVOF) is a new cathode material for
implantable cardiac devices (ICDs). It can
sustain a high voltage, actually increased by the
presence of fluoride, owing to the greater
density of silver in the material.
Li/Ag displacement reaction from 0 x 4
with no V5 reduction (ESR) No shift in
diffraction peak positions, which indicates a
biphasic reaction for silver
displacement SVOF framework is continually
collapsing and becomes XRD amorphous at x 3.5

• Octahedral VO2O2/2F23- and tetrahedral
  VO2O2/2- units connect to form infinite chains.
  Ag cations are located between the chains.

2
Solid State Oxide Fluorides
Kenneth R. Poeppelmeier, Northwestern University,
DMR 0604454
The NSF Division of Materials Research award
supports a comprehensive and interdisciplinary
educational program in inorganic solid state
chemistry.
Graduate Students Dr. Paulette Guillory
(Illinois Minority Graduate Incentive Program),
Dr. Heather Izumi, Dr. Amy Kopf, Mike Marvel
(PhD 2007), Thomas Albrecht (PhD 2008), Julia
Chamberlain (PhD 2009), Rachelle Pinlac (PhD
2010). Post Doctorals Dr. Julien Lesage, PhD
Université de Caen/Basse Normandie 2007 Dr.
Janet Kirsch, PhD University of Wyoming,
Assistant Professor of Chemistry, University of
Wisconsin La Crosse 2005 Dr. Paul Maggard, PhD
Iowa State, Assistant Professor of Chemistry,
North Carolina State University 2002 Dr. Sylvie
Malo, PhD Université de Caen, Maitre de
Conferences (Assistant Professor), Université de
Caen/Basse Normandie 2001, DPR 2007. Internationa
l Exchange Professor Makoto Sasaki, Materials
Science and Engineering Muroran Institute of
Technology, Muroran, Japan, Dr. Keitaro Tezuka,
PhD Hokkaido University, Dr. Masaaki Isobe,
Advanced Materials Laboratory, National Institute
for Materials Science, Tsukuba, Japan Dr. Ha
Kyun Jung, Advanced Materials Division, Korean
Research Institute of Chemical Technology,
Tacjon, Korea Professor Tor Grande, Norwegian
University of Science and Technology, Trondheim,
Norway. Collaborators Erin Sorensen (PhD
2005), ONR MURI Grant N00014-01-1-0810, Dr. John
Vaughey, Argonne National Laboratory, Professor
Shiv Halasyamani, University of Texas-Houston.