Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Enhanced photocatalytic activation of methane C-H bond by Incorporate
  Cerium into ETS-10   Ce-ETS-10 was prepared and their ability on photocatalysis coupling of
methane has been studied in detail. Ce modification enhanced the photocatalysis
performance of ETS-10 on methane conversion reaction, and the methane
conversion can be carried out under irradiation of visible light. To study the
various rare earth modification to ETS-10, various rare earth elements were
introduced to ETS-10 molecular sieve, and the relative photocatalytic methane
conversion performance were studied. Various characterizations were applied to
examine rare earth modification behavior. The SPS results show that the Cerium
modification induce visible light photovoltage, which means the strong
electron-hole separation which enhance the photocatalytic performance. The
charge-hole separation is non-traditional n-n heterojunction for the
charge-hole separation is highly oriented and efficient at atomic scale. This
mechanism shows significant enhancement for methane conversion reaction.

31
The categories of this paper are: ao-sci
25
The categories of this paper are: patt-sol
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
0
The categories of this paper are: hep-ph
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
20
The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
3
The categories of this paper are: physics
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math