Table 2 The characterization of various MgO catalysts.

From: Excess soluble alkalis to prepare highly efficient MgO with relative low surface oxygen content applied in DMC synthesis

Catalysts

Specific surface areaa (m2/g)

Total pore volumeb (cm3/g)

Average pore sizec (nm)

Crystallite sizes (nm)

MgO-P-NaOH-3

99

0.44

17.41

8.7

MgO-P-NaOH-6

73

0.32

17.38

7.6

MgO-P-NaOH + Na2CO3-3/1

104

0.48

18.53

10.4

MgO-P-NaOH + Na2CO3-1/3

137

0.88

23.66

11.7

MgO-P-Na2CO3-3

149

0.88

23.68

12.0

MgO-P-Na2CO3-3.14

162

0.97

23.91

13.1

  1. aCalculated by Brunauer–Emmett–Teller (BET) method;
  2. bVolume adsorbed at P/P0 = 0.99;
  3. cCalculated based on BJH method.
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