Synergistic effect of MoS(2)and Fe(3)O(4)decorated reduced graphene oxide as a ternary hybrid for high-performance and stable asymmetric supercapacitors

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F20%3A00538021" target="_blank" >RIV/61388955:_____/20:00538021 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1088/1361-6528/aba1bd" target="_blank" >http://dx.doi.org/10.1088/1361-6528/aba1bd</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1361-6528/aba1bd" target="_blank" >10.1088/1361-6528/aba1bd</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Synergistic effect of MoS(2)and Fe(3)O(4)decorated reduced graphene oxide as a ternary hybrid for high-performance and stable asymmetric supercapacitors

Popis výsledku v původním jazyce

Today, two-dimensional materials for use in energy devices have attracted the attention of researchers. Molybdenum disulfide is promising as an electrode material with unique physical properties and a high exposed surface area. However, there are still problems that need to be addressed. In this study, we prepared a hybrid containing MoS2, Fe3O4, and reduced graphene oxide (rGO) by a two-step hydrothermal method. This nanocomposite is well structurally and morphologically identified, and its electrochemical performance is then evaluated for use in supercapacitors. According to the galvanostatic charge-discharge results, this nanocomposite shows a good specific capacity, equivalent to 527 F g(-1)at 0.5 mA cm(-2). The results of the multi-cycle stability test (5000 cycles) indicate a significant stability rate capability, with 93% of the electrode capacity remaining after 5000 cycles. The reason for this could be the synergistic effect between rGO and MoS(2)as well as between molybdenum and iron in the faradic reaction in the charge storage process. Fe(3)O(4)and MoS(2)provide electroactive sites for the faradic process and electrolyte accessibility and rGO supply conductivity.

Název v anglickém jazyce

Synergistic effect of MoS(2)and Fe(3)O(4)decorated reduced graphene oxide as a ternary hybrid for high-performance and stable asymmetric supercapacitors

Popis výsledku anglicky

Today, two-dimensional materials for use in energy devices have attracted the attention of researchers. Molybdenum disulfide is promising as an electrode material with unique physical properties and a high exposed surface area. However, there are still problems that need to be addressed. In this study, we prepared a hybrid containing MoS2, Fe3O4, and reduced graphene oxide (rGO) by a two-step hydrothermal method. This nanocomposite is well structurally and morphologically identified, and its electrochemical performance is then evaluated for use in supercapacitors. According to the galvanostatic charge-discharge results, this nanocomposite shows a good specific capacity, equivalent to 527 F g(-1)at 0.5 mA cm(-2). The results of the multi-cycle stability test (5000 cycles) indicate a significant stability rate capability, with 93% of the electrode capacity remaining after 5000 cycles. The reason for this could be the synergistic effect between rGO and MoS(2)as well as between molybdenum and iron in the faradic reaction in the charge storage process. Fe(3)O(4)and MoS(2)provide electroactive sites for the faradic process and electrolyte accessibility and rGO supply conductivity.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Nanotechnology

ISSN

0957-4484

e-ISSN

—

Svazek periodika

31

Číslo periodika v rámci svazku

43

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

435401

Kód UT WoS článku

000559783300001

EID výsledku v databázi Scopus

2-s2.0-85089405468