2D Rhenium- and Niobium-Doped WSe2 Photoactive Cathodes in Photo-Enhanced Hybrid Zn-Ion Capacitors
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F24%3A00587276" target="_blank" >RIV/61388963:_____/24:00587276 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22310/24:43929981
Result on the web
<a href="https://doi.org/10.1021/acsanm.4c01405" target="_blank" >https://doi.org/10.1021/acsanm.4c01405</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsanm.4c01405" target="_blank" >10.1021/acsanm.4c01405</a>
Alternative languages
Result language
angličtina
Original language name
2D Rhenium- and Niobium-Doped WSe2 Photoactive Cathodes in Photo-Enhanced Hybrid Zn-Ion Capacitors
Original language description
Designing a multifunctional device that combines solar energy conversion and energy storage is an appealing and promising approach for the next generation of green power and sustainable society. In this work, we fabricated a single-piece device incorporating undoped WSe2, Re- or Nb-doped WSe2 photocathode, and zinc foil anode system enabling a light-assisted rechargeable aqueous zinc metal cell. Comparison of structural, optical, and photoelectric characteristics of undoped and doped WSe2 has further confirmed that ionic insertion of donor metal (rhenium and niobium) plays an important role in enhancing photoelectrochemical energy storage properties. The electrochemical energy storage cell consisting of Re-doped WSe2 (as the photoactive cathode and zinc metal as anode) showed the best photodriven enhancement in the specific capacitance of around 45% due to efficient harvesting of visible light irradiation. The assembled device exhibited a loss of 20% of its initial specific capacitance after 1500 galvanostatic charge-discharge cycles at 50 mA g(-1). The cell also provided a specific energy density of 574.21 mWh kg(1-) and a power density of 5906 mW kg(1-) at 15 mA g(-1). Under otherwise similar conditions, the pristine WSe2 and Nb-doped WSe2 showed photoenhanced induced capacitance of 43% and 27% at 15 mA g(-1) and supplied an energy density of 436.4 mWh kg(1-) and 202 mWh kg(1-), respectively. As a result, a reasonable capacitance improvement obtained by the Re-WSe2 photoenhanced zinc-ion capacitor could provide a facile and constructive way to achieve a highly efficient and low-cost solar-electrochemical capacitor system.
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
10402 - Inorganic and nuclear chemistry
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
2024
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 Nano Materials
ISSN
2574-0970
e-ISSN
2574-0970
Volume of the periodical
7
Issue of the periodical within the volume
12
Country of publishing house
US - UNITED STATES
Number of pages
13
Pages from-to
14102-14114
UT code for WoS article
001250620800001
EID of the result in the Scopus database
2-s2.0-85196663917