Synthesis and modification of reduced graphene oxide aerogels for biofuel cell applications - Publikacja - MOST Wiedzy

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Synthesis and modification of reduced graphene oxide aerogels for biofuel cell applications

Abstrakt

We have carried out the preparation of reduced graphene oxide aerogels using eco-friendly method that is based on the Hummers method of graphite oxidation without the use of NaNO3 that produces toxic gases. To obtain a porous 3D structure of reduced graphene oxide, we performed the hydrothermal reduction at elevated temperature. We also prepared the rGO aerogel/CNT composite using multiwalled carbon nanotubes as linkers. The rGO aerogels are promising materials as they possess good electrical conductivity (up to 100 S/m) and high surface area and porous structure (500 m2/g). The main goal was to obtain the material for electrodes in enzymatic biofuel cells. Thus the proper modification was performed using free radical functionalization. It was shown that in order to synthesize rGO aerogels modified with anthracene, the proper order of reactions needs to be provided. The morphology of anthracene modified electrodes was analyzed using scanning electron microscopy, which confirmed their porous structure with non-uniform pore size distribution that ranged between few nanometers to microns. Data obtained by Raman spectroscopy confirmed the successful oxidation and reduction of analyzed materials. UV-Vis spectra revealed the presence of anthracene moieties in examined materials. We also recorded preliminary cyclic voltammograms that confirm an electric conductivity of the obtained structures.

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Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuł w czasopiśmie wyróżnionym w JCR
Opublikowano w:
MATERIALS SCIENCE-POLAND nr 33, wydanie 2, strony 292 - 300,
ISSN: 0137-1339
Język:
angielski
Rok wydania:
2015
Opis bibliograficzny:
Kondratowicz I., Żelechowska K., Majdecka D., Bilewicz R.: Synthesis and modification of reduced graphene oxide aerogels for biofuel cell applications// MATERIALS SCIENCE-POLAND. -Vol. 33, iss. 2 (2015), s.292-300
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1515/msp-2015-0042
Weryfikacja:
Politechnika Gdańska

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