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Chemically reduced graphene contains inherent metallic impurities present in parent natural and synthetic graphite

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F12%3A43893557" target="_blank" >RIV/60461373:22310/12:43893557 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.1073/pnas.1205388109" target="_blank" >http://dx.doi.org/10.1073/pnas.1205388109</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1073/pnas.1205388109" target="_blank" >10.1073/pnas.1205388109</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Chemically reduced graphene contains inherent metallic impurities present in parent natural and synthetic graphite

  • Original language description

    Graphene-related materials are in the forefront of nanomaterial research. One of the most common ways to prepare graphenes is to oxidize graphite (natural or synthetic) to graphite oxide and exfoliate it to graphene oxide with consequent chemical reduction to chemically reduced graphene. Here, we show that both natural and synthetic graphite contain a large amount of metallic impurities that persist in the samples of graphite oxide after the oxidative treatment, and chemically reduced graphene after thechemical reduction. We demonstrate that, despite a substantial elimination during the oxidative treatment of graphite samples, a significant amount of impurities associated to the chemically reduced graphene materials still remain and alter their electrochemical properties dramatically. We propose a method for the purification of graphenes based on thermal treatment at 1,000 degrees C in chlorine atmosphere to reduce the effect of such impurities on the electrochemical properties. Our f

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    CA - Inorganic chemistry

  • OECD FORD branch

Result continuities

  • Project

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Others

  • Publication year

    2012

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Proceedings of the National Academy of Sciences of the United States of America

  • ISSN

    0027-8424

  • e-ISSN

  • Volume of the periodical

    109

  • Issue of the periodical within the volume

    32

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    6

  • Pages from-to

    12899-12904

  • UT code for WoS article

    000307551700021

  • EID of the result in the Scopus database