Figure 5.

XPS spectra. (a) Ni 2p3/2 of ra-MOF, (c) Ni 2p3/2 of Pd@ra-MOF, and (e) Pd 3d5/2 of Pd@ra-MOF before and (b, d, f) after CO oxidation reaction (fifth run).

Kim et al. Nanoscale Research Letters 2012 7:461   doi:10.1186/1556-276X-7-461
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