PO43− Coordinated Robust Single‐Atom Platinum Catalyst for Selective Polyol Oxidation**
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 Pt1/hydroxyapatite (HAP) catalyst via a simple hydrothermal strategy. Gratifyingly, this robust Pt1/HAP catalyst exhibits remarkable catalytic selectivity and catalyst stability for the selective oxidation of C2–C4 polyols to corresponding primary hydroxy acids. It is found that the Pt−(O−P) linkages with strong electron‐withdrawing function of PO43− (Pt1−OPO43− 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 PO43−‐coordination effect provides electrostatic stabilization for single‐atom Pt, ensuring the highly efficient catalysis of Pt1/HAP for over 160 hours with superior leaching resistance.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Mar 23, 2022
- Source ID
- 10.1002/ange.202116059
Entities
People
- Chaohe Yang
- De Chen
- Fanyu Meng
- Hao Yan
- Minghao Zha
- Mingyue Zhao
- Ning Yan
- Shangfeng Li
- Siming Zhao
- Xiang Feng
- Xiaobo Chen
- Xin Zhou
- Yibin Liu
Organizations
- Intelligence Community Postdoctoral Research Fellowship Program
- National Natural Science Foundation of China
- Natural Science Foundation of Shandong Province
- Norwegian University of Science and Technology
- University of Petroleum