Carbon fragments are ripped off from graphite oxide sheets during their thermal reduction.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22330%2F14%3A43897857" target="_blank" >RIV/60461373:22330/14:43897857 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22330/14:43897383 RIV/60461373:22310/14:43897383 RIV/60461373:22310/14:43897857

Výsledek na webu

<a href="http://pubs.rsc.org/en/content/articlepdf/2014/nj/c4nj00871e" target="_blank" >http://pubs.rsc.org/en/content/articlepdf/2014/nj/c4nj00871e</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/c4nj00871e" target="_blank" >10.1039/c4nj00871e</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Carbon fragments are ripped off from graphite oxide sheets during their thermal reduction.

Popis výsledku v původním jazyce

Since the discovery of graphene, many different exfoliation processes of graphite oxide have been reported. Thermal reduction is the most often used method for graphene synthesis. It is a general assumption that during the exfoliation process water vaporand carbon-monoxide and -dioxide are produced. In this paper it is shown that more complex products are formed during this process. Graphite oxides, prepared according to Hofmann, Hummers, Staudenmaier and Brodie methods, having different C/O ratios, were exposed to thermal shock. The resulting fragments detected using a time-of-flight spectrometer exhibit that the fragment fingerprints are very similar for all graphite oxides. Our finding challenges the general assumption that only basic gases are formed during thermal exfoliation of graphite oxide. The full understanding of the exfoliation mechanism and products is crucial for reproducible scalable synthesis of reduced graphenes on a large scale.

Název v anglickém jazyce

Carbon fragments are ripped off from graphite oxide sheets during their thermal reduction.

Popis výsledku anglicky

Since the discovery of graphene, many different exfoliation processes of graphite oxide have been reported. Thermal reduction is the most often used method for graphene synthesis. It is a general assumption that during the exfoliation process water vaporand carbon-monoxide and -dioxide are produced. In this paper it is shown that more complex products are formed during this process. Graphite oxides, prepared according to Hofmann, Hummers, Staudenmaier and Brodie methods, having different C/O ratios, were exposed to thermal shock. The resulting fragments detected using a time-of-flight spectrometer exhibit that the fragment fingerprints are very similar for all graphite oxides. Our finding challenges the general assumption that only basic gases are formed during thermal exfoliation of graphite oxide. The full understanding of the exfoliation mechanism and products is crucial for reproducible scalable synthesis of reduced graphenes on a large scale.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CE - Biochemie

OECD FORD obor

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Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

New Journal of Chemistry

ISSN

1144-0546

e-ISSN

—

Svazek periodika

38

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

6

Strana od-do

5700-5705

Kód UT WoS článku

000345485000005

EID výsledku v databázi Scopus

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