[Todos] Seminario INQUIMAE / DQIAQF - 11 de mayo - 13 hs.

[andrea en qi.fcen.uba.ar]

Seminario del martes 11 de mayo



Aula de Seminarios INQUIMAE – DQIAQF

Facultad de Ciencias Exactas y Naturales

Ciudad Universitaria – Pab. 2  -  Piso 3


Hector D. Abruna
Dept. of Chemistry and Chemical Biology
and Energy Materials Center at Cornell Baker Laboratory, Cornell
University
Ithaca, New York 14853 - 1302

¨Discovery and Characterization of Novel Materials
for Electrical Energy generation and storage:
Fuel cells, batteries and super caps"

This presentation will deal with materials aspects related to electrical
energy generation and storage as exemplified by fuel cells in the former
and lithium ion batteries and super capacitors in the latter. The first
part of the presentation will focus on the development of new materials
for fuel cell applications with emphasis on ordered intermetallic phases
as both bulk electrodes and nano-particles. The electrocatalytic activity
of these materials has been assessed via electrochemical methods including
cyclic and rotating disk electrode voltammetries. They have also been
characterized via in-situ FT-IR, DEMS (differential electrochemical mass
spectrometry), UHV surface analysis methods and in-situ X-ray diffraction.
The use of high throughput combinatorial methods will also be discussed.
The second part of the presentation will deal with the use of organic
thiolates/disulfides for application in high performance cathodes for
lithium ion rechargeable batteries and supercapacitors. The results of
synthesis, computational and electrochemical characterization studies will
be presented.
The presentation will conclude with a projection of future directions.