Qianhong Wang, Keng Sang, Changwei Liu, Zhihua Zhang, Wenyao Chen, Te Ji, Lina Li, Cheng Lian, Gang Qian, Jing Zhang, Xinggui Zhou, Weikang Yuan, Xuezhi Duan
The development of sustainable and anti-poisoning single-atom catalysts (SACs) is essential for advancing their research from laboratory to industry. Here, we present a proof-of-concept study on the poisoning of Au SACs, and the antidote of Au nanoparticles (NPs), with trace addition shown to reinforce and sustain propylene epoxidation. Multiple characterizations, kinetics investigations, and multiscale simulations reveal that Au SACs display remarkable epoxidation activity at a low propylene coverage, but become poisoned at higher coverages...
April 16, 2024: Nature Communications