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. 2022 Jun 6;7(24):20731–20740. doi: 10.1021/acsomega.2c00982

Table 4. Molar Values of the Elements Present in CoFe2–xErxO4 (x = 0, 0.05, and 0.10) Samples.

  x = 0.00
 x = 0.05
 x = 0.10
element nominal experimental nominal experimental nominal experimental
O 4.00 3.95 4.00 3.94 4.00 3.93
Fe 2.00 1.90 1.95 1.91 1.90 1.85
Co 1.00 1.13 1.00 1.10 1.00 1.07
Er 0.00 0.00 0.05 0.04 0.10 0.13