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Scanning Electrochemical Microscopy Applied to the Investigation of Lithium (De‐)Insertion in TiO 2
Author(s) -
Zampardi Giorgia,
Ventosa Edgar,
La Mantia Fabio,
Schuhmann Wolfgang
Publication year - 2015
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201400613
Subject(s) - scanning electrochemical microscopy , anatase , electrochemistry , lithium (medication) , cyclic voltammetry , electrode , scanning electron microscope , electrolyte , materials science , redox , ferrocene , ion , scanning probe microscopy , inorganic chemistry , chemistry , nanotechnology , catalysis , organic chemistry , medicine , photocatalysis , composite material , endocrinology
The electrochemical insertion of lithium ions in anatase TiO 2 nanoparticles was investigated by scanning electrochemical microscopy in the feedback mode of operation using ferrocene as reporting redox couple at different potentials in presence and absence of lithium ions. By fixing the position of the tip while performing cyclic voltammetry at the TiO 2 paste electrode, the formation of the solid electrolyte interphase (SEI) on the surface of titania was followed in situ. Different scan rates have been used to study the kinetics of SEI formation.