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. 2019 Jul 11;4(7):12012–12017. doi: 10.1021/acsomega.9b00711

Figure 2.

Figure 2

HIM images of the break surface of SLS 3D-printed pure PP (a) and top and break surfaces of SLS 3D-printed stir bar covers (b–d). The Pd/SiO2 catalyst can be seen as pale colored areas with sharp edges in images (b–d).21