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Chapter 5 127
(Figure 5.3). This is probably due to the rather small particle size of these Pd NPs and,
therefore, hard to be detected by PXRD technique. Finally, it should be pointed out, that
employing equal molar amounts of Cu- and Pd-salts or only Pd-precursor in the starting
reaction mixtures, formation of only metal/metal-oxide products has been observed
(Figures 7.25 and 7.26).
Figure 5.4. PXRD patterns of the as-synthesized Pd@[Cu 3-X Pd x (BTC) 2 ] n in comparison with
simulated patterns of the non-doped Cu-BTC.
Table 5.1. Calculated cell parameters of the Cu/Pd-BTC_1-3 (TOPAS academic software and
Pawley method [287] have been employed) in comparison with that obtained from the single crystal
data of the reported [Cu 3 (BTC) 2 ] n . [35]
Sample a (Å) V (Å 3 ) Space group R wp R exp
[Cu 3 (BTC) 2 ] [35] n 26.343 18280 Fm-3m - -
Cu/Pd-BTC_1 26.308 18208 Fm-3m 6.018 4.79
Cu/Pd-BTC_2 26.305 18203 Fm-3m 6.618 5.17
Cu/Pd-BTC_3 26.293 18178 Fm-3m 7.201 6.09