Complex organic molecules are released during thermal reduction of graphite oxides

Literature Information

Publication Date 2013-05-09
DOI 10.1039/C3CP51189H
Impact Factor 3.676
Authors

Zdeněk Sofer, Petr Šimek, Martin Pumera


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Abstract

Thermal exfoliation and deoxygenation of graphite oxide is one of the major routes for the preparation of large quantities of graphene-based materials. It is commonly believed that thermal exfoliation leads to the release of H2O, CO and CO2 gases. Here we show for the first time that in addition to these small simple molecules, there is a wide variety of complex organic molecules that are released from graphite oxide during the exfoliation process, such as alkanes, substituted polycyclic aromatic hydrocarbons and heterocyclic molecules. The compositions of the released volatile compounds depend on the exfoliation atmosphere (Ar, H2), pressure and the preparation methods of graphite oxide (such as Hofmann, Staudenmaier or Hummers). The structures of the decomposition products reflect the characters of graphite oxide precursors and are also directly related to the defects in the graphene products. As such, these findings have profound influences on our understanding on the structural defects of reduced graphenes, which consequently provide further insights into their properties.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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