Graphitic nanofibers decorated with Ni3S2 interlaced nanosheets as efficient binder-free cathodes for hybrid supercapacitors
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F20%3A43918138" target="_blank" >RIV/60461373:22310/20:43918138 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0169433219326443" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0169433219326443</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.apsusc.2019.143828" target="_blank" >10.1016/j.apsusc.2019.143828</a>
Alternative languages
Result language
angličtina
Original language name
Graphitic nanofibers decorated with Ni3S2 interlaced nanosheets as efficient binder-free cathodes for hybrid supercapacitors
Original language description
In this current work, we successfully decorated free-standing conductive functionalized graphitic nanofibers (GNFs) with interlaced Ni3S2 nanosheets (designated as GNFs@Ni3S2) by using a facile pulse-reversal deposition technique, and employed the GNFs@Ni3S2 composite as an efficient binder-free cathode material for hybrid supercapacitors (HSCs) for the first time. According to the results of the material characterizations, it confirmed that that surface of the GNFs was evenly deposited with Ni3S2 nanosheets, and the resultant composite was in fibrous nanostructure. On the basis of the series of electrochemical measurements, the GNFs@Ni3S2 composite electrode revealed almost three times larger discharge capacity than the pristine Ni3S2 electrode, and exhibited superior rate capability. Moreover, a HSC device based on the GNFs@Ni3S2 cathode delivered an impressive specific capacity of 34.6 mAh g−1 at 1 A g−1 and the maximum energy density of 44.2 Wh kg−1 at a power density of 1.2 kW kg−1. Most importantly, the HSC retained 68.9% of its initial capacity after 5000 consecutive charge/discharge cycles at a current density of 4 A g−1. The remarkable electrochemical performance of the binder-free GNFs@Ni3S2 composite electrode makes it to be regarded as one of the potential cathode materials for high-performance HSCs. © 2019 Elsevier B.V.
Czech name
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Czech description
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Classification
Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
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OECD FORD branch
10402 - Inorganic and nuclear chemistry
Result continuities
Project
<a href="/en/project/GA17-11456S" target="_blank" >GA17-11456S: Layered transition metal dichalcogenides nanostructures for electrocatalysis</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Applied Surface Science
ISSN
0169-4332
e-ISSN
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Volume of the periodical
505
Issue of the periodical within the volume
March 2020
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
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UT code for WoS article
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EID of the result in the Scopus database
2-s2.0-85072248811