Department of Chemical Engineering, College of Engineering, King Faisal University, Al-Ahsa, 31982, Kingdom of Saudi Arabia.
Department of Materials Engineering, College of Engineering, King Faisal University, Al-Ahsa, 31982, Kingdom of Saudi Arabia.
Chem Rec. 2022 Dec;22(12):e202200156. doi: 10.1002/tcr.202200156. Epub 2022 Sep 8.
Platinum-based catalysts have a long history of application in formic acid oxidation (FAO). The single metal Pt is active in FAO but expensive, scarce, and rapidly deactivates. Understanding the mechanism of FAO over Pt important for the rational design of catalysts. Pt nanomaterials rapidly deactivate because of the CO poisoning of Pt active sites via the dehydration pathway. Alloying with another transition metal improves the performance of Pt-based catalysts through bifunctional, ensemble, and steric effects. Supporting Pt catalysts on a high-surface-area support material is another technique to improve their overall catalytic activity. This review summarizes recent findings on the mechanism of FAO over Pt and Pt-based alloy catalysts. It also summarizes and analyzes binary and ternary Pt-based catalysts to understand their catalytic activity and structure relationship.
铂基催化剂在甲酸氧化（FAO）中有着悠久的应用历史。单一金属 Pt 在 FAO 中具有活性，但价格昂贵、稀缺且易失活。了解 Pt 催化 FAO 的机理对于合理设计催化剂非常重要。Pt 纳米材料由于通过脱水途径导致 Pt 活性位的 CO 中毒而迅速失活。与另一种过渡金属合金化通过双功能、整体和空间位阻效应改善 Pt 基催化剂的性能。将 Pt 催化剂负载在高表面积的载体材料上是提高其整体催化活性的另一种技术。本综述总结了 Pt 及 Pt 基合金催化剂催化 FAO 机理的最新发现。还总结和分析了二元和三元 Pt 基催化剂，以了解它们的催化活性和结构关系。
