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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

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10305 - Fluids and plasma physics (including surface physics)

Result continuities

  • Project

  • 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