The XPS binding energies for Pd (0) 3d are at 335 eV and 340 eV (as reported in literature). But can these values shifts to higher Binding energy in polyaniline-palladium nanocomposite?
Be careful. If Pd is in a polymer environment, there would be also a charge up problem due to the electrical conductivity of your sample. The energy shift can come from the sample charge up.
Very likely, see for example
http://pubs.acs.org/doi/abs/10.1021/ic50108a001
and
https://books.google.com.ng/books?id=mDXNBQAAQBAJ&redir_esc=y
Be careful. If Pd is in a polymer environment, there would be also a charge up problem due to the electrical conductivity of your sample. The energy shift can come from the sample charge up.
Firstly I suggest you calibrate you spectrum using for example C1s (284.8 eV), because this shift would be associated with charge up problem.
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