Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Shungite in view of neutron scattering   Recently suggested new concept of shungite (Int. J. Smart Nano Mat. DOI:
10.1080/19475411.2014.885913) exhibits this carboneous raw material as a
multi-level fractal structure of nanosize fragments of reduced graphene oxide
(rGO). In view of the extraordinary importance of the rGO starting material for
the current molecular graphene technology, the natural rGO deposits turns out
to be quite challenging, making it highly necessary to prove the reliability of
the proposed rGO concept of shungite. Once consistent with all the block of the
available geological and physical-chemical data obtained during the last few
decades, the concept nonetheless needs a direct confirmation in terms of the
current graphene science. The first such acknowledgement has been received just
recently when studying photoluminescence (PL) of shungite dispersions
(arXiv:1308.2569v2 [cond-mat.mes-hall]). A close similarity of PL spectra of
aqueous dispersion of shungite and those of synthetic graphene quantum dots of
the rGO origin has been established. The current paper presents the next direct
confirmation supplied with neutron scattering. Elastic neutron diffraction and
inelastic neutron scattering have left no doubts concerning both graphene-like
configuration and chemical composition of basic structural elements of shungite
attributing the latter to rGO nanosize sheets with an average 11:1:3 (C:O:H)
atomic content ratio. The experimental data are supplemented with
quantum-chemical calculations that allowed suggesting a clear vision of the
shungite structure at its first nanolevels.

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The categories of this paper are: hep-ph
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The categories of this paper are: math-ph
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The categories of this paper are: physics
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The categories of this paper are: q-bio
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The categories of this paper are: econ
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The categories of this paper are: gr-qc
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The categories of this paper are: hep-ex
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The categories of this paper are: nlin
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The categories of this paper are: hep-lat
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The categories of this paper are: eess
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The categories of this paper are: adap-org
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The categories of this paper are: astro-ph
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The categories of this paper are: funct-an
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The categories of this paper are: chem-ph
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The categories of this paper are: plasm-ph
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The categories of this paper are: bayes-an