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2 nm

5 nm

Figure 30. Computer simulation (top) and HRTEM image (bottom) of Cu2O cuprite with the PS to the right in the [110] orientation.

d again represents the Fourier filtered image and the PS after filtering. Figure 33e and f shows Fourier filtered images of reflection pair e and f, respectively. Reflection pairs e can be identified as tenorite reflections, whereas f represents the cuprite reflections. Both structures are in the [110] orientation. The tenorite reflections are the -111 and 002 reflections. For the cuprite one observes the -11 - 1, -110, and -111 reflections. The two lattices are turned slightly with respect to each other. There are also small deformations inserted. Since the particle consists of two different oxides, they can only coexist by inserting deformations in comparison with the bulk. This causes a deformation for the cubic cuprite such that the structure becomes orthorhom-bic. For the tenorite cell a deformation is also observed.

Figure 29. Computer simulation (top) and HRTEM image (bottom) of Cu2O cuprite with the PS to the left in the [110] orientation.

Figure 31. Computer simulation (top) and HRTEM image (bottom) of Cu2O cuprite with the PS to the right in the [001] orientation.

Figure 29. Computer simulation (top) and HRTEM image (bottom) of Cu2O cuprite with the PS to the left in the [110] orientation.

Figure 31. Computer simulation (top) and HRTEM image (bottom) of Cu2O cuprite with the PS to the right in the [001] orientation.

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