Table 1 Catalytic performances of the catalysts for styrene epoxidation reaction in different conditionsa.

From: In situ tuning of electronic structure of catalysts using controllable hydrogen spillover for enhanced selectivity

Entry

Atmosphere

Catalysts

Conversion (%)

SO sel. (%)

1

–

–

9.9

37.6

2

–

50Al2O3/Pt

17.7

72.4

3

–

CoOx/50Al2O3

93.0

74.3

4

–

Pre-reduced CoOx/50Al2O3b

91.2

73.7

5

H2

CoOx/50Al2O3

89.8

75.9

6

–

CoOx/50Al2O3/Pt

93.4

76.2

7

H2

CoOx/50Al2O3/Pt

82.5

94.8

  1. aReaction conditions: 3.5 mmol styrene, 7 mmol TBHP (70% in water), 20 ml acetonitrile and catalysts with the same CoOx content at 80 °C for 8 h.
  2. bReducing CoOx/50Al2O3 at 350 °C for 1 h before reaction.
Back to article page