Figure 4.
(a) Survey XPS spectra obtained over the Pd-Cu/TNS, Pd-Cu/TNT, and Pd-Cu/TNW catalysts; high-resolution XPS spectra over Pd-Cu/TNS, Pd-Cu/TNT, and Pd-Cu/TNW catalysts; (b) Ti 2p; (c) O 1s, (d) Pd 3d, and (e) Cu 2p core level spectra.
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