Fig. 6: Availability of surface oxygen species on pure ZrO2 catalyst. | Nature Communications

Fig. 6: Availability of surface oxygen species on pure ZrO2 catalyst.

From: Regulation of lattice oxygen reactivity of ZrO2 to promote efficient chemical looping oxidative dehydrogenation of ethane

Fig. 6

a HRTEM image. b Fast Fourier transformed (FFT) image from Fig. 6a. c Inverse FFT images from Fig. 6b. d Gibbs free energy profiles as well as the optimized structures of intermediates and transition states obtained for the reaction of lattice oxygen with hydrogen on ZrO2(-111) and ZrO2(011) at 973 K and ambient pressure. Color scheme: Zr – light blue, O – red, C – grey, H – white.

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