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Statements

Subject Item
n2:RIV%2F60461373%3A22310%2F11%3A43892064%21RIV12-MSM-22310___
rdf:type
n13:Vysledek skos:Concept
dcterms:description
Electrochemical applications of graphene are of great interest to many researchers as they can potentially lead to crucial technological advancements in fabrication of electrochemical devices for energy production and storage, and highly sensitive sensors. There are many routes towards fabrication of bulk quantities of chemically modified graphenes (CMG) for applications such as electrode materials. Each of them yields different graphene materials with different functionalities and structural defects. Here, we compare the electrochemical properties of five different chemically modified graphenes: graphite oxide, graphene oxide, thermally reduced graphene oxide, chemically reduced graphene oxide, and electrochemically reduced graphene oxide. We characterized these materials using transmission electron microscopy, Raman spectroscopy, high-resolution X-ray photoelectron spectroscopy, electrochemical impedance spectroscopy, and cyclic voltammetry, which allowed us to correlate the electrochemical properties with the structural and chemical features of the CMGs. We found that thermally reduced graphene oxide offers the most favorable electrochemical performance among the different materials studied. Our findings have a profound impact for the applications of chemically modified graphenes in electrochemical devices. Electrochemical applications of graphene are of great interest to many researchers as they can potentially lead to crucial technological advancements in fabrication of electrochemical devices for energy production and storage, and highly sensitive sensors. There are many routes towards fabrication of bulk quantities of chemically modified graphenes (CMG) for applications such as electrode materials. Each of them yields different graphene materials with different functionalities and structural defects. Here, we compare the electrochemical properties of five different chemically modified graphenes: graphite oxide, graphene oxide, thermally reduced graphene oxide, chemically reduced graphene oxide, and electrochemically reduced graphene oxide. We characterized these materials using transmission electron microscopy, Raman spectroscopy, high-resolution X-ray photoelectron spectroscopy, electrochemical impedance spectroscopy, and cyclic voltammetry, which allowed us to correlate the electrochemical properties with the structural and chemical features of the CMGs. We found that thermally reduced graphene oxide offers the most favorable electrochemical performance among the different materials studied. Our findings have a profound impact for the applications of chemically modified graphenes in electrochemical devices.
dcterms:title
Electrochemistry at Chemically Modified Graphenes Electrochemistry at Chemically Modified Graphenes
skos:prefLabel
Electrochemistry at Chemically Modified Graphenes Electrochemistry at Chemically Modified Graphenes
skos:notation
RIV/60461373:22310/11:43892064!RIV12-MSM-22310___
n13:predkladatel
n14:orjk%3A22310
n3:aktivita
n16:P n16:Z
n3:aktivity
P(GA104/09/0621), Z(MSM6046137302)
n3:cisloPeriodika
38
n3:dodaniDat
n4:2012
n3:domaciTvurceVysledku
n15:3148262
n3:druhVysledku
n18:J
n3:duvernostUdaju
n20:S
n3:entitaPredkladatele
n9:predkladatel
n3:idSjednocenehoVysledku
197049
n3:idVysledku
RIV/60461373:22310/11:43892064
n3:jazykVysledku
n8:eng
n3:klicovaSlova
graphene oxide; graphene; electrochemistry; chemically modified graphenes
n3:klicoveSlovo
n5:electrochemistry n5:graphene n5:graphene%20oxide n5:chemically%20modified%20graphenes
n3:kodStatuVydavatele
DE - Spolková republika Německo
n3:kontrolniKodProRIV
[7045B7D7C0CB]
n3:nazevZdroje
Chemistry A European Journal
n3:obor
n7:CA
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
5
n3:projekt
n21:GA104%2F09%2F0621
n3:rokUplatneniVysledku
n4:2011
n3:svazekPeriodika
17
n3:tvurceVysledku
Bonanni, Alessandra Sofer, Zdeněk Pumera, Martin Cross, Jeffrey S. Ambrosi, Adriano
n3:wos
000295880300034
n3:zamer
n19:MSM6046137302
s:issn
0947-6539
s:numberOfPages
8
n17:doi
10.1002/chem.201101117
n12:organizacniJednotka
22310