College of Chemistry, Key Laboratory of Surface and Interface Chemistry of Jilin Province, Jilin University , Changchun 130012, China.
ACS Appl Mater Interfaces. 2016 Oct 12;8(40):26683-26689. doi: 10.1021/acsami.6b06501. Epub 2016 Sep 29.
MgFeO with inverse spinel structure is demonstrated to be an efficient support for constructing practical potential Pt catalyst (Pt/MgFeO). The resultant Pt/MgFeO exhibits excellent catalytic behavior in CO oxidation under normal temperature and humidity. TOF calculated based on the content of Pt is 0.131 s. The excellent performance of Pt/MgFeO attributes to the presence of surface undercoordinated lattice oxygens on MgFeO support. These oxygens could participate in the initial CO oxidation and then be recovered under O conditions. Over this Pt/MgFeO catalyst, CO catalytic oxidation should mainly follow a redox mechanism.
具有反尖晶石结构的 MgFeO 被证明是构建实用 Pt 催化剂（Pt/MgFeO）的有效载体。所得的 Pt/MgFeO 在常温常湿下的 CO 氧化中表现出优异的催化性能。基于 Pt 含量计算的 TOF 为 0.131 s。Pt/MgFeO 的优异性能归因于 MgFeO 载体表面存在配位不足的晶格氧。这些氧可以参与初始 CO 氧化，然后在 O 条件下恢复。在这种 Pt/MgFeO 催化剂上，CO 催化氧化应该主要遵循氧化还原机制。
