Fabrication of polyaniline/mesoporous carbon/MnO 2 ternary nanocomposites and their enhanced electrochemical performance for supercapacitors

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F12%3A43867831" target="_blank" >RIV/70883521:28110/12:43867831 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/70883521:28610/12:43867831

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.electacta.2012.03.101" target="_blank" >http://dx.doi.org/10.1016/j.electacta.2012.03.101</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.electacta.2012.03.101" target="_blank" >10.1016/j.electacta.2012.03.101</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Fabrication of polyaniline/mesoporous carbon/MnO 2 ternary nanocomposites and their enhanced electrochemical performance for supercapacitors

Popis výsledku v původním jazyce

Polyaniline/mesoporous carbon/MnO 2 (PANI/CMK-3/MnO 2) ternary nanocomposites with a PANI nanolayer uniformly deposited on the CMK-3/MnO 2 particles were synthesized by chemical oxidative polymerization. Structure and morphology of the ternary compositeswere further characterized by TEM, XRD, FTIR and FE-SEM techniques. Electrochemical measurements demonstrated that the ternary composite with 12% MnO 2 content possessed enhanced specific capacitance of 695 Fg -1 and the capacitance retention was 88% after 1000 galvanostatic charge-discharge cycles at a current density of 1.0 Ag -1. The incorporation of MnO 2 nanoparticles can not only contribute to high capacitance but also stabilize the interaction between the quinoid ring of PANI and the CMK-3/MnO 2particles. The PANI nanolayer in the ternary composite restrains the dissolution of MnO 2 nanoparticles in acidic electrolyte so as to enhance their electrochemical utilization. The synergistic effect among three components may result in

Název v anglickém jazyce

Fabrication of polyaniline/mesoporous carbon/MnO 2 ternary nanocomposites and their enhanced electrochemical performance for supercapacitors

Popis výsledku anglicky

Polyaniline/mesoporous carbon/MnO 2 (PANI/CMK-3/MnO 2) ternary nanocomposites with a PANI nanolayer uniformly deposited on the CMK-3/MnO 2 particles were synthesized by chemical oxidative polymerization. Structure and morphology of the ternary compositeswere further characterized by TEM, XRD, FTIR and FE-SEM techniques. Electrochemical measurements demonstrated that the ternary composite with 12% MnO 2 content possessed enhanced specific capacitance of 695 Fg -1 and the capacitance retention was 88% after 1000 galvanostatic charge-discharge cycles at a current density of 1.0 Ag -1. The incorporation of MnO 2 nanoparticles can not only contribute to high capacitance but also stabilize the interaction between the quinoid ring of PANI and the CMK-3/MnO 2particles. The PANI nanolayer in the ternary composite restrains the dissolution of MnO 2 nanoparticles in acidic electrolyte so as to enhance their electrochemical utilization. The synergistic effect among three components may result in

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CD - Makromolekulární chemie

OECD FORD obor

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Projekt

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Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Electrochimica Acta

ISSN

0013-4686

e-ISSN

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Svazek periodika

71

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

6

Strana od-do

27-32

Kód UT WoS článku

000304510900005

EID výsledku v databázi Scopus

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