Capacitive contribution to Li-storage in TiO2 (B) and TiO2 (anatase)
Result description
Analysis of cyclic voltammograms of Li insertion into TiO2 (B) and anatase provides information about capacitive contributions to overall charge of Li-storage. The enhancement of 30% is found in capacitive contributions (normalized to the total stored charges) in TiO2 (B) compared to that in anatase, in spite of ca. three times smaller surface area of the former. Different charging mechanism explains facilitated Li? insertion in TiO2 (B). The difference is caused mainly by pseudocapacitive Li-storage inthe bulk TiO2 (B). Deconvolution of cyclic voltammograms also indicates different capacitive contributions of the two voltammetric peaks, S1 and S2 of TiO2 (B). These results provide novel insight into the Li-storage in TiO2 (B) and its difference fromthat in anatase.
Keywords
The result's identifiers
Result code in IS VaVaI
Alternative codes found
RIV/00216208:11310/14:10159366
Result on the web
DOI - Digital Object Identifier
Alternative languages
Result language
angličtina
Original language name
Capacitive contribution to Li-storage in TiO2 (B) and TiO2 (anatase)
Original language description
Analysis of cyclic voltammograms of Li insertion into TiO2 (B) and anatase provides information about capacitive contributions to overall charge of Li-storage. The enhancement of 30% is found in capacitive contributions (normalized to the total stored charges) in TiO2 (B) compared to that in anatase, in spite of ca. three times smaller surface area of the former. Different charging mechanism explains facilitated Li? insertion in TiO2 (B). The difference is caused mainly by pseudocapacitive Li-storage inthe bulk TiO2 (B). Deconvolution of cyclic voltammograms also indicates different capacitive contributions of the two voltammetric peaks, S1 and S2 of TiO2 (B). These results provide novel insight into the Li-storage in TiO2 (B) and its difference fromthat in anatase.
Czech name
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Czech description
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Classification
Type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CG - Electrochemistry
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Power Sources
ISSN
0378-7753
e-ISSN
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Volume of the periodical
246
Issue of the periodical within the volume
JAN 2014
Country of publishing house
CH - SWITZERLAND
Number of pages
7
Pages from-to
103-109
UT code for WoS article
000326661100015
EID of the result in the Scopus database
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Basic information
Result type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP
CG - Electrochemistry
Year of implementation
2014