Evaluation of electrochemical hydrogen storage capability of three-dimensional nano-structured nitrogen-doped graphene
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F22%3A00125931" target="_blank" >RIV/00216224:14310/22:00125931 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0925838822006752?via%3Dihub#" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0925838822006752?via%3Dihub#</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jallcom.2022.164284" target="_blank" >10.1016/j.jallcom.2022.164284</a>
Alternative languages
Result language
angličtina
Original language name
Evaluation of electrochemical hydrogen storage capability of three-dimensional nano-structured nitrogen-doped graphene
Original language description
In this work, nitrogen-doped graphene foam was synthesized by using hydrothermal routes. In the first step, graphene was synthesized by utilizing a modified Hummer's method and nitrogen-doped graphene foam was then synthesized at 180 °C by using an ammonia and graphene solution for 12 h. X-ray photon spectroscopy (XPS) was applied to determine the extent of doping by nitrogen on the graphene foam; three N-peaks were observed at 398.25, 399.69, and 401.46 eV, and XPS also showed that 6 at% of the synthesized graphene foam consisted of nitrogen atoms. The capability of this foam to absorb hydrogen was evaluated in a 6 M KOH solution through electrochemical impedance spectroscopy (EIS), galvanostatic charge/discharge, and cyclic voltammetry (CV) analysis. The hydrogen storage capacity of the achieved N-doped GF, showing the value of 1916.5 mAh.g−1 significantly improved in comparison to that of pure graphene in previous work, due to the increasing electronegative sites at the surface of the graphene foam.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10305 - Fluids and plasma physics (including surface physics)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Alloys and Compounds
ISSN
0925-8388
e-ISSN
1873-4669
Volume of the periodical
906
Issue of the periodical within the volume
June
Country of publishing house
CH - SWITZERLAND
Number of pages
8
Pages from-to
1-8
UT code for WoS article
000779660700004
EID of the result in the Scopus database
2-s2.0-85125481585