Table 1 List of modified SCFO-based oxygen carriers that were prepared and investigated in this study

From: Controlling selectivity in the chemical looping oxidative dehydrogenation of propane through interface engineering

Sample name

Na type precursor

Na type modification

Loading (wt.%)

Preparation method

Further treatment

SCFO

20Na2CO3-w

Na2CO3

Na2CO3

20

WI

Calcined at 500 °C in air

20Na2CO3-d

Na2CO3

Na2CO3

20

DI

Calcined at 900 °C in air

20NaNO3c-d

NaNO3

Na2CO3

20

DI

Calcined at 750 °C in air

20NaNO3-d

NaNO3

NaNO3

20

DI

No further treatment

10NaNO3-d

NaNO3

NaNO3

10

DI

No further treatment

5NaNO3-CO2-w

NaNO3

Na2CO3

5

WI

Calcined at 550 °C in 6 vol.% CO2

  1. WI wet impregnation, DI dry impregnation.