Formic acid (FA) has long been regarded as a cheap and non-toxic hydrogen storage material due to its effective production of hydrogen in mild conditions. Though the development of heterogeneous catalysts has received much progress, their catalytic activity remains insufficient. Here, a porous Triazine-based covalent organic polymer (TA-COP) was fabricated via the Schiff base condensation reaction. Then, experimental studies on palladium nanoparticles supported on a nitrogen-rich TA-COP substrate are combined for FA dehydrogenation to selective production of CO₂ and H₂ under mild conditions. The Pd(0)@TA ­ COP showed high catalytic activity (TOF up to 233 h⁻¹) and high hydrogen selectivity for the dehydrogenation of FA at 328 K. Our study demonstrated that the synergistic effects between the nitrogen-rich TA-COP support and Pd nanoparticles play a critical role in the efficient catalytic dehydrogenation of formic acid. This work provides a feasible strategy to design high-performance COP-based heterogeneous catalysts for catalyzing formic acid dehydrogenation.

甲酸（FA）长期以来一直被认为是一种廉价且无毒的储氢材料，因为它在温和的条件下有效地产生了氢。尽管多相催化剂的开发取得了很大进展，但其催化活性仍然不足。在此，通过席夫碱缩合反应制备了多孔的基于三嗪的共价有机聚合物（TA-COP）。然后，结合在富氮TA-COP衬底上负载的钯纳米颗粒的实验研究，进行FA脱氢，在温和条件下选择性生产CO ₂和H ₂。Pd（0）@TA COP表现出高催化活性（TOF高达233 h ^-1）和328 K时FA脱氢的高氢选择性。我们的研究表明，富氮TA-COP载体和Pd纳米颗粒之间的协同作用在甲酸的有效催化脱氢中起关键作用。这项工作为设计高性能的基于COP的多相催化剂催化甲酸脱氢提供了可行的策略。