Artificial photosynthesis is a promising strategy for efficient hydrogen peroxide production, but the poor directional charge transfer from bulk to active sites restricts the overall photocatalytic efficiency. To address this, a new process of dipole field-driven spontaneous polarization in nitrogen-rich triazole-based carbon nitride (C₃N₅) to harness photogenerated charge kinetics for hydrogen peroxide production is constructed. Here, C₃N₅ achieves a hydrogen peroxide photosynthesis rate of 3809.5 µmol g⁻¹ h⁻¹ and a 2e⁻ transfer selectivity of 92% under simulated sunlight and ultrasonic forces. This high performance is attributed to the introduction of rich nitrogen active sites of the triazole ring in C₃N₅, which brings a dipole field. This dipole field induces a spontaneous polarization field to accelerate a rapid directional electron transfer process to nitrogen active sites and therefore induces Pauling-type adsorption of oxygen through an indirect 2e⁻ transfer pathway to form hydrogen peroxide. This innovative concept using a dipole field to harness the migration and transport of photogenerated carriers provides a new route to improve photosynthesis efficiency via structural engineering.

人工光合作用是有效生产过氧化氢的一种有前景的策略，但从本体到活性位点的不良定向电荷转移限制了整体光催化效率。为了解决这个问题，构建了一种在富氮三唑基氮化碳（C ₃ N ₅）中偶极场驱动自发极化的新工艺，以利用光生电荷动力学生产过氧化氢。在此，C ₃ N _{5在模拟阳光和超声波力下实现了3809.5 µmol g} ^-1 h ^-1的过氧化氢光合作用速率和92%的2e ^-转移选择性。_{这种高性能归因于C 3} N ₅中三唑环引入了丰富的氮活性位点，从而带来了偶极场。该偶极场诱发自发极化场，加速向氮活性位点的快速定向电子转移过程，从而通过间接 2e ^-转移途径诱发鲍林型氧吸附，形成过氧化氢。这一创新概念利用偶极场来利用光生载流子的迁移和传输，为通过结构工程提高光合作用效率提供了一条新途径。