Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Support-mediated activation and deactivation of Pt thin films   Using ab initio methods, we examine the the charge distribution at the
interface of alpha-alumina-supported Pt films, and we consider the influence of
this interface on CO adsorption. We demonstrate that a combination of
electrostatic charge transfer and covalent bonding governs the interfacial
interactions, and that these interactions play an important role in the metal
reactivity. By modifying the interface and varying the Pt film thickness over a
nanoscale range, CO adsorption can be significantly enhanced or diminished.
These observations could be used to tune the reactivity of Pt particles.

29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
14
The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
19
The categories of this paper are: eess
22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
8
The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph