Understanding electrochemical capacitors with in-situ techniques
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F21%3A43933974" target="_blank" >RIV/60461373:22310/21:43933974 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S1364032121007012?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1364032121007012?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.rser.2021.111418" target="_blank" >10.1016/j.rser.2021.111418</a>
Alternative languages
Result language
angličtina
Original language name
Understanding electrochemical capacitors with in-situ techniques
Original language description
Understanding the charge (energy) storage process in electrochemical capacitors (ECs) is crucial for continuous performance enhancement of the billion-dollar charge storage industry. Charge storage mechanism in materials discovery/property manipulation experiments are routinely speculated from cyclic voltammetry (CV), galvanostatic charge - discharge cycling (CDC), and electrochemical impedance spectroscopy (EIS) experiments, but with ambiguities. Herein, with reference to charge storage in ECs, areview and discussion on the usefulness and the experimental set-up of in-situ analytical techniques in literature, viz. in-situ nuclear magnetic resonance spectroscopy, in-situ infrared spectroscopy, in-situ X-ray diffraction, and electrochemical quartz crystal microbalance are detailed. The in-situ characterization techniques probe the structural or weight changes in the material as the device is charged or discharged. This time-resolved structural or weight changes helps to determine the charge-discharge process in the device or electrode in the presence of the electrolyte as a function of applied voltage. The studies so far reveal that in an EC electrode with porous carbon, its pores are occupied with electrolyte ions complementary to the surface charge even in the absence of an applied potential, charging the device lead to counter ion adsorption, co-ion desorption and ion exchange in the electrodes. However, research gaps such as the chemical nature of the accessible and inaccessible storage sites, the volume distribution of charge storage, understanding of the appropriation of the charge adsorption at the required sites are yet to be understood. Further requirements to understand the charge storage mechanisms in different electrodes have also been explored.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20700 - Environmental engineering
Result continuities
Project
<a href="/en/project/GC20-16124J" target="_blank" >GC20-16124J: Two-dimensional layered transition metal dichalcogenides/ nanostructured carbons composites for electrochemical energy storage and conversion</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
ISSN
1364-0321
e-ISSN
1879-0690
Volume of the periodical
149
Issue of the periodical within the volume
October 2021
Country of publishing house
BE - BELGIUM
Number of pages
16
Pages from-to
111418
UT code for WoS article
000684599900001
EID of the result in the Scopus database
2-s2.0-85109203142