Abstract
The reduction of graphite oxide is one of the most important reactions in the production of graphene in gram quantities. The mechanisms of these widely used reactions are poorly understood. The mechanism of the chemical reduction of two different graphite oxides prepared by the chlorate (Hofmann method) and permanganate methods (Hummers method) has been investigated. Three different reduction agents, lithium tetrahydridoaluminate, sodium tetrahydridoborate, and lithium tetrahydridoborate, as well as their deuterated counterparts, were used for the reduction of graphite oxide. Reduced graphite oxides were analyzed by scanning electron microscopy, energy-dispersive spectroscopy, elemental combustion analysis, Raman spectroscopy, high-resolution X-ray photoelectron spectroscopy, and simultaneous thermal analysis. The concentration of boron incorporated into graphene was measured by prompt gamma activation analysis. Rutherford back-scattering spectroscopy and elastic recoil detection analysis were used for the determination of the elemental composition, including deuterium concentration, as evidence of C-H bond formation.
| Original language | English |
|---|---|
| Pages (from-to) | 1399-1407 |
| Number of pages | 9 |
| Journal | ChemPlusChem |
| Volume | 80 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 2015 Sep 1 |
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All Science Journal Classification (ASJC) codes
- Chemistry(all)
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Definitive Insight into the Graphite Oxide Reduction Mechanism by Deuterium Labeling. / Jankovský, Ondřej; Šimek, Petr; Luxa, Jan; Sedmidubský, David; Tomandl, Ivo; MacKová, Anna; Mikšová, Romana; Malinský, Petr; Pumera, Martin; Sofer, Zdeněk.
In: ChemPlusChem, Vol. 80, No. 9, 01.09.2015, p. 1399-1407.Research output: Contribution to journal › Article
TY - JOUR
T1 - Definitive Insight into the Graphite Oxide Reduction Mechanism by Deuterium Labeling
AU - Jankovský, Ondřej
AU - Šimek, Petr
AU - Luxa, Jan
AU - Sedmidubský, David
AU - Tomandl, Ivo
AU - MacKová, Anna
AU - Mikšová, Romana
AU - Malinský, Petr
AU - Pumera, Martin
AU - Sofer, Zdeněk
PY - 2015/9/1
Y1 - 2015/9/1
N2 - The reduction of graphite oxide is one of the most important reactions in the production of graphene in gram quantities. The mechanisms of these widely used reactions are poorly understood. The mechanism of the chemical reduction of two different graphite oxides prepared by the chlorate (Hofmann method) and permanganate methods (Hummers method) has been investigated. Three different reduction agents, lithium tetrahydridoaluminate, sodium tetrahydridoborate, and lithium tetrahydridoborate, as well as their deuterated counterparts, were used for the reduction of graphite oxide. Reduced graphite oxides were analyzed by scanning electron microscopy, energy-dispersive spectroscopy, elemental combustion analysis, Raman spectroscopy, high-resolution X-ray photoelectron spectroscopy, and simultaneous thermal analysis. The concentration of boron incorporated into graphene was measured by prompt gamma activation analysis. Rutherford back-scattering spectroscopy and elastic recoil detection analysis were used for the determination of the elemental composition, including deuterium concentration, as evidence of C-H bond formation.
AB - The reduction of graphite oxide is one of the most important reactions in the production of graphene in gram quantities. The mechanisms of these widely used reactions are poorly understood. The mechanism of the chemical reduction of two different graphite oxides prepared by the chlorate (Hofmann method) and permanganate methods (Hummers method) has been investigated. Three different reduction agents, lithium tetrahydridoaluminate, sodium tetrahydridoborate, and lithium tetrahydridoborate, as well as their deuterated counterparts, were used for the reduction of graphite oxide. Reduced graphite oxides were analyzed by scanning electron microscopy, energy-dispersive spectroscopy, elemental combustion analysis, Raman spectroscopy, high-resolution X-ray photoelectron spectroscopy, and simultaneous thermal analysis. The concentration of boron incorporated into graphene was measured by prompt gamma activation analysis. Rutherford back-scattering spectroscopy and elastic recoil detection analysis were used for the determination of the elemental composition, including deuterium concentration, as evidence of C-H bond formation.
UR - http://www.scopus.com/inward/record.url?scp=84940786540&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84940786540&partnerID=8YFLogxK
U2 - 10.1002/cplu.201500168
DO - 10.1002/cplu.201500168
M3 - Article
AN - SCOPUS:84940786540
VL - 80
SP - 1399
EP - 1407
JO - ChemPlusChem
JF - ChemPlusChem
SN - 2192-6506
IS - 9
ER -