PO<sub>4</sub><sup>3−</sup> Coordinated Robust Single‐Atom Platinum Catalyst for Selective Polyol Oxidation**
Hao Yan, Mingyue Zhao, Xiang Feng, Siming Zhao, Xin Zhou, Shangfeng Li, Minghao Zha, Fanyu Meng, Xiaobo Chen, Yibin Liu, De Chen, Ning Yan, Chaohe Yang
Abstract
Abstract Achieving efficient catalytic conversion over a heterogeneous catalyst with excellent resistance against leaching is still a grand challenge for sustainable chemical synthesis in aqueous solution. Herein, we devised a single‐atom Pt 1 /hydroxyapatite (HAP) catalyst via a simple hydrothermal strategy. Gratifyingly, this robust Pt 1 /HAP catalyst exhibits remarkable catalytic selectivity and catalyst stability for the selective oxidation of C 2 –C 4 polyols to corresponding primary hydroxy acids. It is found that the Pt−(O−P) linkages with strong electron‐withdrawing function of PO 4 3− (Pt 1 −OPO 4 3− pair active site) not only realize the activation of the C−H bond, but also destabilize the transition state from adsorbed hydroxy acids toward the C−C cleavage, resulting in the sharply increased selectivity of hydroxy acids. Moreover, the strong PO 4 3− ‐coordination effect provides electrostatic stabilization for single‐atom Pt, ensuring the highly efficient catalysis of Pt 1 /HAP for over 160 hours with superior leaching resistance.