Zheng Jia-Jia, Wang Zhenzhen, Xingfa Gao
Laboratory of Theoretical and Computational Nanoscience, National Center for Nanoscience and Technology, Chinese Academy of Sciences, Beijing 100190, China.
J Phys Chem Lett. 2024 Feb 22;15(7):1887-1889. doi: 10.1021/acs.jpclett.3c03556.
All radical-detecting methods using trapping agents, which are originally developed for homogeneous reaction systems, may not be applicable to systems with solid surfaces. This is because false radical signals can be generated in the presence of solid surfaces. An extra selectivity study following the trapping agent experiment may help in distinguishing between the true and false radical signals. Surface chemistry mechanisms are superior to free-radical mechanisms in not only correctly understanding the reaction selectivity previously reported for catalytic nanoparticles but also developing theoretical models for the computational design of solid catalysts in the future.
所有使用捕获剂的自由基检测方法最初都是为均相反应体系开发的，可能不适用于有固体表面的体系。这是因为在固体表面存在的情况下可能会产生虚假的自由基信号。在捕获剂实验之后进行额外的选择性研究可能有助于区分真实和虚假的自由基信号。表面化学机理不仅在正确理解先前报道的催化纳米颗粒的反应选择性方面，而且在未来开发用于固体催化剂计算设计的理论模型方面都优于自由基机理。
