N-doped porous carbon film electrodes for electrochemical capacitor, made by electrospray of sol precursors

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F19%3AA2302HRM" target="_blank" >RIV/61988987:17310/19:A2302HRM - isvavai.cz</a>

Result on the web

<a href="https://www.webofscience.com/wos/woscc/full-record/WOS:000488203600005" target="_blank" >https://www.webofscience.com/wos/woscc/full-record/WOS:000488203600005</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

N-doped porous carbon film electrodes for electrochemical capacitor, made by electrospray of sol precursors

Original language description

Heteroatom doping in carbon structure enhances surface wettability, electrical conductivity, and electron-donor/acceptor properties that in turn, improves the electrochemical performance of carbon electrodes. In this article, in situ grown carbon film electrodes are obtained through electrospray of polymeric sol on carbon paper, followed by curing, and carbonization. The nitrogen functionality in these binder-free carbon film electrodes is successfully incorporated from melamine addition in resorcinolformaldehyde sol. The film electrode shows a capacitance of 223 mF cm(-2) (446 Fg(-1)), and volumetric energy density of 15.2 mWh cm(-3) at 1 mA cm(-2) in a symmetric cell with 2 M KOH as electrolyte. Furthermore, these electrodes exhibit excellent cyclic stability even after 5000 charge-discharge cycles with almost complete capacitance retention at 5 mA cm(-2). The outstanding electrochemical performance of carbon film electrodes are due to the combined effect of following steps: (i) incorporation of nitrogen and oxygen in right amount, (ii) retention of the desired pore size distribution, and fraction of micropores through systematic balancing of resorcinol to melamine ratio in precursor sol, (iii) disintegration of sol by electrospray prior to deposition on carbon paper, that in turn produces a porous three-dimensional interconnected network of nanoparticulate film, and (iv) lyophilization of wet gel layer that retains the pore spaces during solvent removal. (C) 2019 Elsevier Ltd. All rights reserved.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10400 - Chemical sciences

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2019

Confidentiality

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

Name of the periodical

CARBON

ISSN

0008-6223

e-ISSN

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Volume of the periodical

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Issue of the periodical within the volume

17.10.2019

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

33-41

UT code for WoS article

000488203600005

EID of the result in the Scopus database

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