Table 1. Structural and Textural Properties of Morphologically Controlled Ceria.
sample | morph.a | sizea/nm | exposed planesa | (111) peakb degrees | cryst. sizeb/nm | lattice strainb/% | lattice param.b/nm | surf. areac/m2 g–1 | pore volumec/cm3 g–1 | ave. pore sized/nm |
---|---|---|---|---|---|---|---|---|---|---|
Ce–C | cubes | 19.3 ± 2.2 | (100) | 28.434 | 20 | 0.71 | 0.5432 | 23 | 0.159 | 17.1 |
Ce–R | rods | 90.4 ± 4.6 × 7.1 ± 0.7 | (110),(100) | 28.490 | 8 | 1.72 | 0.5422 | 85 | 0.689 | 30.1 |
Ce–P | trun. oct. | 10.7 ± 0.9 | (111),(100) | 28.498 | 11 | 1.12 | 0.5421 | 65 | 0.099 | 5.1 |
Measured by high-resolution TEM.
Calculated from the (111) diffraction peak obtained by XRD, Figure S3.
Surface area calculated from N2 adsorption measurements, Figure S6.
Calculated from N2 desorption isotherm, in accordance with the BJH method. Abbreviations: morph. = morphology, cryst. = crystallite, param. = parameter, surf. = surface, and trun. oct. = truncated octahedra.