Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 10763-10770 |
| Number of pages | 8 |
| Journal | Chemistry - A European Journal |
| Volume | 17 |
| Issue number | 38 |
| DOIs | |
| Publication status | Published - 2011 Sep 12 |
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All Science Journal Classification (ASJC) codes
- Catalysis
- Organic Chemistry
Cite this
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Electrochemistry at chemically modified graphenes. / Ambrosi, Adriano; Bonanni, Alessandra; Sofer, Zdeněk; Cross, Jeffrey S.; Pumera, Martin.
In: Chemistry - A European Journal, Vol. 17, No. 38, 12.09.2011, p. 10763-10770.Research output: Contribution to journal › Article
TY - JOUR
T1 - Electrochemistry at chemically modified graphenes
AU - Ambrosi, Adriano
AU - Bonanni, Alessandra
AU - Sofer, Zdeněk
AU - Cross, Jeffrey S.
AU - Pumera, Martin
PY - 2011/9/12
Y1 - 2011/9/12
N2 - 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.
AB - 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.
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UR - http://www.scopus.com/inward/citedby.url?scp=80052509415&partnerID=8YFLogxK
U2 - 10.1002/chem.201101117
DO - 10.1002/chem.201101117
M3 - Article
C2 - 21837720
AN - SCOPUS:80052509415
VL - 17
SP - 10763
EP - 10770
JO - Chemistry - A European Journal
JF - Chemistry - A European Journal
SN - 0947-6539
IS - 38
ER -