Reducing emission of carcinogenic by-products in the production of thermally reduced graphene oxide

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22810%2F16%3A43901911" target="_blank" >RIV/60461373:22810/16:43901911 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22310/16:43901911

Výsledek na webu

<a href="http://pubs.rsc.org/-/content/articlehtml/2016/gc/c6gc02491b" target="_blank" >http://pubs.rsc.org/-/content/articlehtml/2016/gc/c6gc02491b</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/c6gc02491b" target="_blank" >10.1039/c6gc02491b</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Reducing emission of carcinogenic by-products in the production of thermally reduced graphene oxide

Popis výsledku v původním jazyce

In the last decade, researchers have been trying to find out a simple method for large scale fabrication of high-quality graphene. A typical method for the fabrication of gram quantities of graphene materials is the oxidation of graphite to graphite oxide and consequent thermal reduction and exfoliation to reduced graphene oxide at T = similar to 1000 degrees C. Here we show that highly reduced graphene oxide can be prepared at lower temperatures than 1000 degrees C while keeping the properties of graphene suitable for various electrochemical applications. The high temperature exfoliation of graphite oxide typically leads to the formation of a large amount of highly toxic volatile organic hydrocarbons such as benzene and its derivatives. The amount of volatile aromatic hydrocarbons can be reduced using low temperature exfoliation procedures that we present here. The application of a lower exfoliation temperature is highly beneficial as it also significantly reduces the etching of the graphene skeleton and the formation of toxic aromatic hydrocarbons. The effect of thermal exfoliation was investigated in detail for the temperature range of 400 degrees C up to 1000 degrees C under hydrogen as well as nitrogen atmospheres. Our findings show the route for the preparation of thermally reduced graphene oxide suitable for various electrochemical applications without the formation of toxic hydrocarbons as reaction byproducts. These findings are of high importance for the industrial scale production of thermally reduced graphene oxide.

Název v anglickém jazyce

Reducing emission of carcinogenic by-products in the production of thermally reduced graphene oxide

Popis výsledku anglicky

In the last decade, researchers have been trying to find out a simple method for large scale fabrication of high-quality graphene. A typical method for the fabrication of gram quantities of graphene materials is the oxidation of graphite to graphite oxide and consequent thermal reduction and exfoliation to reduced graphene oxide at T = similar to 1000 degrees C. Here we show that highly reduced graphene oxide can be prepared at lower temperatures than 1000 degrees C while keeping the properties of graphene suitable for various electrochemical applications. The high temperature exfoliation of graphite oxide typically leads to the formation of a large amount of highly toxic volatile organic hydrocarbons such as benzene and its derivatives. The amount of volatile aromatic hydrocarbons can be reduced using low temperature exfoliation procedures that we present here. The application of a lower exfoliation temperature is highly beneficial as it also significantly reduces the etching of the graphene skeleton and the formation of toxic aromatic hydrocarbons. The effect of thermal exfoliation was investigated in detail for the temperature range of 400 degrees C up to 1000 degrees C under hydrogen as well as nitrogen atmospheres. Our findings show the route for the preparation of thermally reduced graphene oxide suitable for various electrochemical applications without the formation of toxic hydrocarbons as reaction byproducts. These findings are of high importance for the industrial scale production of thermally reduced graphene oxide.

Druh

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

CEP obor

CA - Anorganická chemie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Green Chemistry

ISSN

1463-9262

e-ISSN

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Svazek periodika

18

Číslo periodika v rámci svazku

24

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

12

Strana od-do

6618-6629

Kód UT WoS článku

000389341800022

EID výsledku v databázi Scopus

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