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. 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.
Další formáty:   BibTeX LaTeX RIS
Základní údaje
Originální název Evaluation of electrochemical hydrogen storage capability of three-dimensional nano-structured nitrogen-doped graphene
Autoři AGHAJANI, Hossein, Arvin Taghizadeh TABRIZI, Reza GHORBANI, Sahand BEHRANGI (364 Írán, domácí), Monika STUPAVSKÁ (703 Slovensko, domácí) a Nesa ABDIAN.
Vydání Journal of Alloys and Compounds, Elsevier, 2022, 0925-8388.
Další údaje
Originální jazyk angličtina
Typ výsledku Článek v odborném periodiku
Obor 10305 Fluids and plasma physics
Stát vydavatele Švýcarsko
Utajení není předmětem státního či obchodního tajemství
WWW URL
Impakt faktor Impact factor: 6.200
Kód RIV RIV/00216224:14310/22:00125931
Organizační jednotka Přírodovědecká fakulta
Doi http://dx.doi.org/10.1016/j.jallcom.2022.164284
UT WoS 000779660700004
Klíčová slova anglicky N-doped Graphene Foam; Hydrogen Storage; Electrochemical Impedance Spectroscopy; Nanostructure; XPS
Štítky rivok
Příznaky Mezinárodní význam, Recenzováno
Změnil Změnila: Mgr. Marie Šípková, DiS., učo 437722. Změněno: 3. 6. 2022 13:38.
Anotace
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.
VytisknoutZobrazeno: 19. 9. 2024 16:58