| 초록 |
Perovskite structured materials (ABO3) are widely considered as materials in various fields. Basically, perovskites are stable at chemical redox/heat environments and show great coke/sulfur resistances, which is good as main materials for energy and environmental applications. One of the unique point is that the perovskite properties can be tuned by incorporating active metals as cations into the B site in the frameworks. Among many metals, platinum (Pt) functions exceptionally well as a nanoparticulate catalyst in many important fields. However, it is scarce, expensive and not always sufficiently durable. Here, we report a perovskite system in which Pt is integrated into the support and its subsequent conversion through exsolution to achieve a resilient catalyst. Therefore, it is possible to produce a uniform equilibrated structure with active emergent Pt nanoparticles strongly embedded in the perovskite surface that display great catalytic activity and stability. |
