在催化加氢反应中，有一种现象叫氢溢流，它可是提升多相催化剂加氢性能的关键因素。多相催化剂就像是化学反应的“小助手”，能让反应更高效地进行。氢溢流简单来说，就是氢原子在催化剂表面形成、迁移的过程。不过，目前人们对氢溢流的理解和有序控制还面临着挑战。多相催化剂的结构设计对氢溢流有很大的促进作用，而氢溢流又会影响加氢反应的活性、选择性和稳定性。到现在为止，很少有系统的研究来追踪多相催化中氢溢流的整个过程。最近有研究对氢溢流从形成、迁移、调控到最终“命运”的研究进展进行了系统梳理。研究还提出了加氢反应中氢溢流的强化机制，通过建立各种因素之间的关系，总结出了促进氢溢流的针对性调控策略，这能为开发高效加氢催化剂提供方向。最后，研究还探讨了氢溢流面临的机遇和挑战，为催化加氢方法提供了理论指导。

期刊

Green Chemistry

标题

Tracking the hydrogen spillover of heterogeneous catalysts in hydrogenation: from formation, migration, and regulation to fate

作者

Guangxun Sun, Peng Xue, Lei Wang, Xin Zhang, Guangzheng Sun, Zhidong Wang, Qian Zhang, Peng Zhang, Yunqi Liu and Yuan Pan

摘要

Hydrogen spillover is a critical factor in enhancing the hydrogenation of heterogeneous catalysts. However, understanding and orderly controlling spillover are still challenging. The structural design of heterogeneous catalysts significantly promotes hydrogen spillover, which affects the activity, selectivity, and stability of hydrogenation. However, to date, very few systematic reviews have tracked the period of hydrogen spillover in heterogeneous catalysis. Herein, we systematically reviewed the recent research progress on hydrogen spillover from formation and fate to regulation. A strengthening mechanism of hydrogen spillover in hydrogenation for the catalytic reaction process is proposed. In addition, targeted regulatory strategies for promoting hydrogen spillover are summarized via constitutive relationships to guide the development of highly efficient hydrogenation catalysts. Finally, the opportunities and challenges of hydrogen spillover are prospectively discussed, providing theoretical guidance for the catalytic hydrogenation methodology.

原文链接

https://pubs.rsc.org/en/content/articlelanding/2025/gc/d5gc02983j

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