Table 7 Physicochemical properties of pristine CeO2 and Ni/CeO2 catalysts in different forms (reduced, calcined, and spent forms).

From: A novel process of triple-passed CO2 methanation over gradient-coated spiral-structured Ni/CeO2 catalysts

Catalyst

aSBET (m2/g)

bVtotal (cm3/g)

cPore size (nm)

CeO2

155.7

0.22

5.5

Calcined Ni/CeO2

89.1

0.19

6.9

Reduced Ni/CeO2

87.5

0.16

7.0

Spent Ni/CeO2

69.2

0.18

8.5

  1. aSBET is BET surface area.
  2. bVtotal is the total pore volume estimated at P/P0 = 0.99.
  3. cPore size is the BJH Desorption average pore width.
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