Exfoliated transition metal dichalcogenide (MX2; M = Mo, W; X= S, Se, Te) nanosheets and their composites with polyaniline nanofibers for electrochemical capacitors

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F19%3A43918140" target="_blank" >RIV/60461373:22310/19:43918140 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26620/19:PU133210

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2352940719303567" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2352940719303567</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apmt.2019.06.002" target="_blank" >10.1016/j.apmt.2019.06.002</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Exfoliated transition metal dichalcogenide (MX2; M = Mo, W; X= S, Se, Te) nanosheets and their composites with polyaniline nanofibers for electrochemical capacitors

Popis výsledku v původním jazyce

Ultrathin sheets of transition metal dichalcogenides have received a great deal of interest in an attempt to develop advanced electrode nanomaterials for electrochemical capacitors, with most of the attention focused on pure transition metal dichalcogenides. We systematically investigated and compared the charge storage capability of tert-butyllithium-exfoliated group 6 transition metal dichalcogenide materials (MX2; M=Mo, W; X=S, Se, Te). The group 6 MX(2)2D materials exhibited distinctive charge storage performance as a result of their different chemical compositions and morphological features. MoTe2 nanosheets demonstrated the highest gravimetric capacitance of all materials. Furthermore, we hybridized these 2D materials with nanofibrous polyaniline (PANI) to study the impact of MX2 materials on its capacitance performance. All the fabricated nanocomposites exhibited a greatly enhanced capacitance compared with the pure PANI, with the highest increase observed for MoTe2/PANI (499 F g(-1)), which represents a 76% increase. This enhancement arises from the promotion of available active surface area of PANI and MoTe2 for electrolyte ions. (C) 2019 Published by Elsevier Ltd.

Název v anglickém jazyce

Exfoliated transition metal dichalcogenide (MX2; M = Mo, W; X= S, Se, Te) nanosheets and their composites with polyaniline nanofibers for electrochemical capacitors

Popis výsledku anglicky

Ultrathin sheets of transition metal dichalcogenides have received a great deal of interest in an attempt to develop advanced electrode nanomaterials for electrochemical capacitors, with most of the attention focused on pure transition metal dichalcogenides. We systematically investigated and compared the charge storage capability of tert-butyllithium-exfoliated group 6 transition metal dichalcogenide materials (MX2; M=Mo, W; X=S, Se, Te). The group 6 MX(2)2D materials exhibited distinctive charge storage performance as a result of their different chemical compositions and morphological features. MoTe2 nanosheets demonstrated the highest gravimetric capacitance of all materials. Furthermore, we hybridized these 2D materials with nanofibrous polyaniline (PANI) to study the impact of MX2 materials on its capacitance performance. All the fabricated nanocomposites exhibited a greatly enhanced capacitance compared with the pure PANI, with the highest increase observed for MoTe2/PANI (499 F g(-1)), which represents a 76% increase. This enhancement arises from the promotion of available active surface area of PANI and MoTe2 for electrolyte ions. (C) 2019 Published by Elsevier Ltd.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

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

2019

Kód důvěrnosti údajů

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

Název periodika

Applied Materials Today

ISSN

2352-9407

e-ISSN

—

Svazek periodika

16

Číslo periodika v rámci svazku

SEP 2019

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

280-289

Kód UT WoS článku

000487288600025

EID výsledku v databázi Scopus

2-s2.0-85068251533