MnO2 nanoflakes/hierarchical porous carbon nanocomposites for high-performance supercapacitor electrodes

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F15%3A43873051" target="_blank" >RIV/70883521:28610/15:43873051 - isvavai.cz</a>

Result on the web

<a href="http://www.sciencedirect.com/science/article/pii/S001346861500540X" target="_blank" >http://www.sciencedirect.com/science/article/pii/S001346861500540X</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.electacta.2015.02.218" target="_blank" >10.1016/j.electacta.2015.02.218</a>

Result language

angličtina

Original language name

MnO2 nanoflakes/hierarchical porous carbon nanocomposites for high-performance supercapacitor electrodes

Original language description

A facile strategy is developed for the synthesis of MnO2 nanoflakes/hierarchical porous carbon spheres (HPCs) nanocomposites via a two-step redox process. The external MnO2 nanoflakes with thickness of TILDE OPERATOR+D9110 nm deposited on the surface ofthe HPCs result in the formation of hierarchical architecture of the composites, while the internal MnO2 layer stabilizes the interaction between MnO2 nanoflakes and HPCs. The resultant composites still retain porous structure after removal of mesoporousSiO2 template and exhibit relatively high specific surface area. The morphology control of the composites can be easily achieved by varying the initial content of Mn(NO3)2 and KMnO4. Electrochemical performance of the composites as supercapacitor electrode materials was evaluated by cyclic voltammetry, galvanostatic charge-discharge and electrochemical impedance spectroscopy techniques. The MnO2 nanoflakes/HPCs composite with 75 wt% MnO2 possesses the highest specific capacitance at a h

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JI - Composite materials

OECD FORD branch

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Project

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Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2015

Confidentiality

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

Name of the periodical

Electrochimica Acta

ISSN

0013-4686

e-ISSN

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Volume of the periodical

164

Issue of the periodical within the volume

Neuveden

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

252-259

UT code for WoS article

000352499000031

EID of the result in the Scopus database

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