Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Materials Design by Quantum-Chemical and other Theoretical/Computational
  Means: Applications to Energy Storage and Photoemissive Materials   The present paper discusses some recent developments in the field of rational
design for energy storage and photoemissive materials. Recent and new examples
of designer materials for Li-ion and Li-air type batteries with high capacity
and energy/power density as well as photoemissive materials with low
workfunctions and improved brightness are discussed as illustrative examples of
how quantum-chemical and other theoretical computational means can be used for
rational materials design.

27
The categories of this paper are: comp-gas
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
16
The categories of this paper are: stat
0
The categories of this paper are: hep-ph
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
7
The categories of this paper are: hep-th
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
33
The categories of this paper are: plasm-ph