Switchable PNIPAm/PPyNT Hydrogel for Smart Supercapacitors: External Control of Capacitance for Pulsed Energy Generation or Prolongation of Discharge Time
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F21%3A43922755" target="_blank" >RIV/60461373:22310/21:43922755 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22330/21:43922755 RIV/60461373:22340/21:43922755
Result on the web
<a href="https://pubs-acs-org.ezproxy.vscht.cz/doi/10.1021/acsami.1c12228" target="_blank" >https://pubs-acs-org.ezproxy.vscht.cz/doi/10.1021/acsami.1c12228</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsami.1c12228" target="_blank" >10.1021/acsami.1c12228</a>
Alternative languages
Result language
angličtina
Original language name
Switchable PNIPAm/PPyNT Hydrogel for Smart Supercapacitors: External Control of Capacitance for Pulsed Energy Generation or Prolongation of Discharge Time
Original language description
Supercapacitors based on nonresponsive polymer hydrogels are gaining significant attention due to their fabrication simplicity and high potential for wearable electronics. However, the use of smart hydrogels in supercapacitor design remains unexplored. In this work, a smart externally controlled supercapacitor based on a temperature-responsive hydrogel doped with polypyrrole nanotubes (PPyNTs) is proposed. The redistribution of PPyNTs in the poly(N-isopropylacrylamide) (PNIPAm) hydrogel can be reversibly controlled by light illumination or temperature increase, leading to on-demand formation/disruption of the nanotube conductive network, due to release/entrapping of the nanotubes from PNIPAm globule volume on surface. The switchable material was introduced in a supercapacitor design as an active and smart electrode, responsible for external control of charge transport and storage. The created device showed a switchable supercapacitor performance with an ability to significantly and rapidly change capacity under heating/cooling or light illumination. The external trigger was applied for static or dynamic control of supercapacitor behavior: prolongation of discharge time (with constant electric loading) or vice-versa pronounced acceleration of supercapacitor discharge. The proposed smart material-based supercapacitor can find a range of attractive applications in backup energy storage or high power pulse generation.
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
20501 - Materials engineering
Result continuities
Project
<a href="/en/project/GA18-26170S" target="_blank" >GA18-26170S: Light triggerable p-conjugated polymers for ON/OFF reversible conductivity switching</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
ACS Applied Materials and Interfaces
ISSN
1944-8244
e-ISSN
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Volume of the periodical
13
Issue of the periodical within the volume
40
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
48030-48039
UT code for WoS article
000709458200068
EID of the result in the Scopus database
2-s2.0-85117342829