Free-standing electrochemically coated MoS: Xbased 3D-printed nanocarbon electrode for solid-state supercapacitor application

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F21%3A43919680" target="_blank" >RIV/62156489:43210/21:43919680 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26620/21:PU141031

Výsledek na webu

<a href="https://doi.org/10.1039/D0NR06479C" target="_blank" >https://doi.org/10.1039/D0NR06479C</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d0nr06479c" target="_blank" >10.1039/d0nr06479c</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Free-standing electrochemically coated MoS: Xbased 3D-printed nanocarbon electrode for solid-state supercapacitor application

Popis výsledku v původním jazyce

The 3D-printing technology offers an innovative approach to develop energy storage devices because of its ability to create facile and low cost customized electrodes for modern electronics. Among the recently explored 2D nanomaterials beyond graphene, molybdenum sulfide (MoSx) has been found as a promising material for electrochemical energy storage devices. In this study, a nanocarbon-based conductive filament was 3D-printed and then activated by solvent treatment, followed by electrodeposition of MoSx on the printed nanocarbon electrode&apos;s surface. The conductive nanocarbon fibers allow a coaxial deposition of a thin MoSx layer. The MoSx layer contributes to pseudocapacitive charge storage mechanisms to obtain higher capacitances. In a three-electrode test system with 1 M H2SO4 as electrolyte, the MoSx coated 3D-printed electrode (MoSx@3D-PE) electrode shows a capacitance of 27 mF cm-2 at the scan rate of 10 mV s-1, and a capacitance of 11.6 mF cm-2 at the current density of 0.13 mA cm-2. Extending to solid-state supercapacitor (SS-SC), the cells were fabricated using the MoSx@3D-PE with different designs and polyvinyl alcohol (PVA)/H2SO4 as gel electrolyte. An interdigital-shaped SS-SC provided a specific capacitance of 4.15 mF cm-2 at a current density of 0.05 mA cm-2. Moreover, it showed a stable cycle life where 10% capacitance loss was found after 10?000 cycles. Briefly, this study reports the integration of 3D-printing and room-temperature electrodeposition techniques allowing a simple way of fabricating customized free-standing 3D-electrodes for use in SC applications.

Název v anglickém jazyce

Free-standing electrochemically coated MoS: Xbased 3D-printed nanocarbon electrode for solid-state supercapacitor application

Popis výsledku anglicky

The 3D-printing technology offers an innovative approach to develop energy storage devices because of its ability to create facile and low cost customized electrodes for modern electronics. Among the recently explored 2D nanomaterials beyond graphene, molybdenum sulfide (MoSx) has been found as a promising material for electrochemical energy storage devices. In this study, a nanocarbon-based conductive filament was 3D-printed and then activated by solvent treatment, followed by electrodeposition of MoSx on the printed nanocarbon electrode&apos;s surface. The conductive nanocarbon fibers allow a coaxial deposition of a thin MoSx layer. The MoSx layer contributes to pseudocapacitive charge storage mechanisms to obtain higher capacitances. In a three-electrode test system with 1 M H2SO4 as electrolyte, the MoSx coated 3D-printed electrode (MoSx@3D-PE) electrode shows a capacitance of 27 mF cm-2 at the scan rate of 10 mV s-1, and a capacitance of 11.6 mF cm-2 at the current density of 0.13 mA cm-2. Extending to solid-state supercapacitor (SS-SC), the cells were fabricated using the MoSx@3D-PE with different designs and polyvinyl alcohol (PVA)/H2SO4 as gel electrolyte. An interdigital-shaped SS-SC provided a specific capacitance of 4.15 mF cm-2 at a current density of 0.05 mA cm-2. Moreover, it showed a stable cycle life where 10% capacitance loss was found after 10?000 cycles. Briefly, this study reports the integration of 3D-printing and room-temperature electrodeposition techniques allowing a simple way of fabricating customized free-standing 3D-electrodes for use in SC applications.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Projekt

<a href="/cs/project/GX19-26896X" target="_blank" >GX19-26896X: Elektrochemie 2D Nanomateriálů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Nanoscale

ISSN

2040-3364

e-ISSN

—

Svazek periodika

13

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

13

Strana od-do

5744-5756

Kód UT WoS článku

000632611200009

EID výsledku v databázi Scopus

2-s2.0-85103342710