Počet záznamů: 1
Tuning of graphene oxide composition by multiple oxidations for carbon dioxide storage and capture of toxic metals
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SYSNO ASEP 0474933 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Tuning of graphene oxide composition by multiple oxidations for carbon dioxide storage and capture of toxic metals Tvůrce(i) Nováček, M. (CZ)
Jankovský, O. (CZ)
Luxa, J. (CZ)
Sedmidubský, D. (CZ)
Pumera, M. (SG)
Fíla, V. (CZ)
Lhotka, M. (CZ)
Klímová, K. (CZ)
Matějková, Stanislava (UOCHB-X) RID, ORCID
Sofer, Z. (CZ)Zdroj.dok. Journal of Materials Chemistry A. - : Royal Society of Chemistry - ISSN 2050-7488
Roč. 5, č. 6 (2017), s. 2739-2748Poč.str. 10 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova graphite oxide ; thermal reduction ; aqueous solution Vědní obor RIV CA - Anorganická chemie Obor OECD Inorganic and nuclear chemistry CEP GA15-09001S GA ČR - Grantová agentura ČR Institucionální podpora UOCHB-X - RVO:61388963 UT WOS 000395075600038 EID SCOPUS 85011959052 DOI 10.1039/c6ta03631g Anotace Graphene oxide (GO) is a material used as a precursor for the synthesis of graphene and its derivatives. Chemical properties of graphene are strongly influenced by the chemical composition of the original GO. In this paper we would like to show that the amount as well as the type of functional groups can be significantly increased and controlled by multiple oxidations of GO. For this purpose we performed multiple oxidations using two chlorate methods (Staudenmaier and Hofmann) and a permanganate method (Hummers). The results show a possibility of tuning the composition of GO functionalities by multiple oxidations. The obtained results also show that the second and third subsequent reoxidation reactions significantly increase the amount of oxygen containing groups in GO, mainly carboxylic groups. The multiple oxidation of graphene oxide led to a significant increase of carbon storage capacity. The high concentration of oxygen functionalities led to an increase of sorption capacity by more than one order of magnitude. Pracoviště Ústav organické chemie a biochemie Kontakt asep@uochb.cas.cz ; Kateřina Šperková, Tel.: 232 002 584 ; Viktorie Chládková, Tel.: 232 002 434 Rok sběru 2018 Elektronická adresa http://pubs.rsc.org/en/content/articlehtml/1952/ta/c6ta03631g
Počet záznamů: 1