Table 1 Properties of single atomic Pt/CeO2-Al2O3 (CA) with various ceria domain sizes, Pt/CeO2, and Pt NP/Al2O3 catalysts

From: Understanding oxygen transfer on ceria with Pt single atoms for surface reaction

 

Ceria domain sizea (nm)

BET surface area (m2 gcat−1)

Pt contentb (wt%)

Pt dispersionc (%)

Number of Pt atom per one ceria domaind

3.7CA

3.7

49.7

0.1

100.4

2.7

5.6CA

5.6

47.2

0.1

100.0

9.4

7.3CA

7.3

45.0

0.1

101.3

20.8

Pt/CeO2

27.6

22.0

0.1

100.7

112.4

Pt NP/Al2O3

-

51.3

0.1

54.8

-

  1. aEstimated based on Scherrer equation from CeO2(111) peak at 28.5°.
  2. bMeasured by ICP.
  3. cMeasured by H2 uptake.
  4. dThe detailed procedure for estimation was explained in the supplementary information.
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