Hierarchical PANI/NiCo-LDH core-shell composite networks on carbon cloth for high performance asymmetric supercapacitor

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F19%3A63523508" target="_blank" >RIV/70883521:28110/19:63523508 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/70883521:28610/19:63523508

Výsledek na webu

<a href="https://www.mdpi.com/2079-4991/9/4/527" target="_blank" >https://www.mdpi.com/2079-4991/9/4/527</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/nano9040527" target="_blank" >10.3390/nano9040527</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Hierarchical PANI/NiCo-LDH core-shell composite networks on carbon cloth for high performance asymmetric supercapacitor

Popis výsledku v původním jazyce

In this work, a facile two-step strategy is adopted to construct hierarchical polyaniline/ NiCo-layered double hydroxide (PANI/NiCo-LDH) core-shell composite nanofiber networks on carbon cloth (CC). Three-dimensional (3D) porous PANI nanofiber networks are firstly uniformly anchored on CC by in-situ oxidative polymerization, followed by growth of NiCo-LDH nanoflakes on the crosslinked PANI framework via electrochemical deposition. The morphology and electrochemical properties of PANI/NiCo-LDH composites are controlled by the deposition time of LDH. Benefiting from rapid electron transport and ion diffusion, the well-defined PANI/NiCo-LDH hierarchical composite with 200 s deposition of LDH delivers a large capacitance of 1845 F g -1 at 0.5 A g -1 and excellent cycling stability of 82% capacitance retention after 5000 cycles at a very high current density of 10.0 A g -1 . Furthermore, an asymmetric supercapacitor (ASC) assembled with PANI/NiCo-LDH as a positive electrode and activated carbon (AC) as a negative electrode exhibits a high capacitance of 147.2 F g -1 in a potential range from 0 to 1.5 V and superior energy density of 46.0 Wh kg -1 at a power density of 351.6W kg -1 .

Název v anglickém jazyce

Hierarchical PANI/NiCo-LDH core-shell composite networks on carbon cloth for high performance asymmetric supercapacitor

Popis výsledku anglicky

In this work, a facile two-step strategy is adopted to construct hierarchical polyaniline/ NiCo-layered double hydroxide (PANI/NiCo-LDH) core-shell composite nanofiber networks on carbon cloth (CC). Three-dimensional (3D) porous PANI nanofiber networks are firstly uniformly anchored on CC by in-situ oxidative polymerization, followed by growth of NiCo-LDH nanoflakes on the crosslinked PANI framework via electrochemical deposition. The morphology and electrochemical properties of PANI/NiCo-LDH composites are controlled by the deposition time of LDH. Benefiting from rapid electron transport and ion diffusion, the well-defined PANI/NiCo-LDH hierarchical composite with 200 s deposition of LDH delivers a large capacitance of 1845 F g -1 at 0.5 A g -1 and excellent cycling stability of 82% capacitance retention after 5000 cycles at a very high current density of 10.0 A g -1 . Furthermore, an asymmetric supercapacitor (ASC) assembled with PANI/NiCo-LDH as a positive electrode and activated carbon (AC) as a negative electrode exhibits a high capacitance of 147.2 F g -1 in a potential range from 0 to 1.5 V and superior energy density of 46.0 Wh kg -1 at a power density of 351.6W kg -1 .

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/LTACH17015" target="_blank" >LTACH17015: Příprava a elektrochemické vlastnosti hierarchických struktur flexibilních elektrod na bázi polyanilin/bimetalové oxidy</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Nanomaterials

ISSN

2079-4991

e-ISSN

—

Svazek periodika

9

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

15

Strana od-do

—

Kód UT WoS článku

000467768800043

EID výsledku v databázi Scopus

2-s2.0-85065473611