Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spontaneous dehydrogenation of methanol over defect-free MgO(100) thin
  film deposited on molybdenum   The dehydrogenation reaction of methanol on metal supported MgO(100) films
has been studied by employing periodic density functional calculations. As far
as we know, the dehydrogenation of single methanol molecule over inert oxide
insulators such as MgO has never been realized before without the introduction
of defects and low coordinated atoms. By depositing the very thin oxide films
on Mo substrate we have successfully obtained the dissociative state of
methanol. The dehydrogenation reaction is energetically exothermic and nearly
barrierless. The metal supported thin oxide films studied here provide a
versatile approach to enhance the activity and properties of oxides.

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The categories of this paper are: adap-org
5
The categories of this paper are: gr-qc
37
The categories of this paper are: supr-con
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The categories of this paper are: eess
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The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
31
The categories of this paper are: ao-sci
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The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
9
The categories of this paper are: nlin
6
The categories of this paper are: astro-ph
32
The categories of this paper are: atom-ph
34
The categories of this paper are: chem-ph
16
The categories of this paper are: stat