Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Computational studies for reduced graphene oxide in hydrogen-rich
  environment   We employ molecular dynamic simulations to study the reduction process of
graphene-oxide (GO) in a chemically active environment enriched with hydrogen.
We examine the concentration and pressure of hydrogen gas as a function of
temperature in which abstraction of oxygen is possible with minimum damage to
C-sp$^2$ bonds hence preserving the integrity of the graphene sheet. Through
these studies we find chemical pathways that demonstrate beneficiary mechanisms
for the quality of graphene including formation of water as well as suppression
of carbonyl pair holes in favor of hydroxyl and epoxy formation facilitated by
hydrogen gas in the environment.

9
The categories of this paper are: nlin
19
The categories of this paper are: eess
11
The categories of this paper are: hep-lat
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
21
The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
16
The categories of this paper are: stat
2
The categories of this paper are: math