Karim Kakaei

Prof. Karim Kakaei


Research Focus & Metrics

Academic Career Length

21Years (2006-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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24 July 2014 in Journal of Materials Chemistry A
Verified
Journal Article
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KKKarim Kakaei
Karim Kakaei
KHKobra Hasanpour
Kobra Hasanpour
An electrochemical method is reported for the production of graphene oxide (GO) and graphene nanosheets using the following steps: electrochemical intercalation of cetyltrimethylammonium bromide (CTAB) into graphite followed by the electrochemical exfoliation of a CTAB-intercalated graphite electrode. These electrochemical processes yield a stable colloidal GO/CTAB suspension. Then, exfoliated GO was used as a precursor at cathodic potentials (completely reduced potential: −1.5 V) by cyclic voltammetry or cronoamperometry. The colloidal GO/CTAB suspension and electrochemically reduced graphene oxide (RGO) nanosheets have been carefully characterized by spectroscopic and electrochemical techniques in comparison to the stable colloidal graphene/sodium dodecyl sulfate suspension. Particularly, FTIR spectra indicate that a variety of the oxygen-containing functional groups have been produced from the graphite plane by electrochemical oxidation. UV-vis spectra of GO/CTAB suspensions show that a large amount of GO is obtained after successive electrochemical intercalation and exfoliation processes. Finally, the straightforward synthesis of RGO/CTAB composites provide a low-cost and high performance for oxygen reduction reaction (ORR), which is also a promising strategy for the synthesis of various GO/cationic surfactants composites.





1 January 2012 in The Journal of Chemical Thermodynamics
Verified
Journal Article
Closed access
MAMarjan Hajy Alimohammadi
Marjan Hajy Alimohammadi
SJSoheila Javadian
Soheila Javadian
HGHussein Gharibi
Hussein Gharibi
ATAli Tehrani
Ali Tehrani
MAMohammad Rashidi Alavijeh
Mohammad Rashidi Alavijeh
KKKarim Kakaei
Karim Kakaei