Table 2. ICP-MS Quantitative Analysis of Zr Content in CeO2 Powders after the Longest Exposure (8 h) to HE Milling Conditions.
| sample | Zr (wt %) | Zr/(Ce+Zr)a (%) |
|---|---|---|
| HSA-HE-8h | 0.12 | 0.23 |
| MSA-HE-8h | 0.53 | 0.99 |
| LSA-HE-8h | 0.61 | 1.14 |
Calculated as the atomic ratio between Zr and total Zr+Ce cations.