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@article{1857938,
author = {Aghajani, Hossein and Tabrizi, Arvin Taghizadeh and Ghorbani, Reza and Behrangi, Sahand and Stupavská, Monika and Abdian, Nesa},
article_number = {June},
doi = {http://dx.doi.org/10.1016/j.jallcom.2022.164284},
keywords = {N-doped Graphene Foam; Hydrogen Storage; Electrochemical Impedance Spectroscopy; Nanostructure; XPS},
language = {eng},
issn = {0925-8388},
journal = {Journal of Alloys and Compounds},
title = {Evaluation of electrochemical hydrogen storage capability of three-dimensional nano-structured nitrogen-doped graphene},
url = {https://www.sciencedirect.com/science/article/pii/S0925838822006752?via%3Dihub#!},
volume = {906},
year = {2022}
}
TY - JOUR
ID - 1857938
AU - Aghajani, Hossein - Tabrizi, Arvin Taghizadeh - Ghorbani, Reza - Behrangi, Sahand - Stupavská, Monika - Abdian, Nesa
PY - 2022
TI - Evaluation of electrochemical hydrogen storage capability of three-dimensional nano-structured nitrogen-doped graphene
JF - Journal of Alloys and Compounds
VL - 906
IS - June
SP - 1-8
EP - 1-8
PB - Elsevier
SN - 09258388
KW - N-doped Graphene Foam
KW - Hydrogen Storage
KW - Electrochemical Impedance Spectroscopy
KW - Nanostructure
KW - XPS
UR - https://www.sciencedirect.com/science/article/pii/S0925838822006752?via%3Dihub#!
N2 - 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.
ER -
AGHAJANI, Hossein, Arvin Taghizadeh TABRIZI, Reza GHORBANI, Sahand BEHRANGI, Monika STUPAVSKÁ a Nesa ABDIAN. Evaluation of electrochemical hydrogen storage capability of three-dimensional nano-structured nitrogen-doped graphene. \textit{Journal of Alloys and Compounds}. Elsevier, 2022, roč.~906, June, s.~1-8. ISSN~0925-8388. Dostupné z: https://dx.doi.org/10.1016/j.jallcom.2022.164284.
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