Table 2 Physicochemical properties of the as-prepared sorbent samples
From: Mg-incorporated sorbent for efficient removal of trace CO from H2 gas
Sorbents | Compositiona (wt. %) | Crystallite sizeb (nm) | Peak area (%) | Cu dispersion (%)e | \({S}_{{{{{{{\rm{Cu}}}}}}}^{+}}\)a, d,e (m2 g−1) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Mg | Cu | Ce | MgO | CuO | CeO2 | \(\frac{\alpha }{(\alpha+\beta+\gamma )}\)c | \(\frac{{{{{{{\rm{Ce}}}}}}}^{3+}}{({{{{{{\rm{Ce}}}}}}}^{4+}+{{{{{{\rm{Ce}}}}}}}^{3+})}\)d | \(\frac{{{{{{{\rm{Cu}}}}}}}^{+}}{({{{{{{\rm{Cu}}}}}}}^{2+}+{{{{{{\rm{Cu}}}}}}}^{+})}\)d | |||
CuCeOx | - | 57.8 | 28.1 | - | 16.7 | 4.5 | 15.9 | 23 | 64 | 3.7 | 9.2 |
Mg13CuCeOx | 10.6 | 45.5 | 22.0 | 4.2 | 10.7 | 2.6 | 27.5 | 40 | 46 | 14.7 | 21.0 |
Mg23CuCeOx | 16.5 | 35.9 | 17.3 | 4.9 | 11.1 | 2.3 | 20.3 | 37 | 44 | 13.4 | 14.2 |
Mg52CuCeOx | 33.3 | 20.2 | 9.6 | 4.7 | 13.0 | 0.9 | 16.6 | 43 | 35 | 11.0 | 5.2 |
