• A hybridized mechanical and solar energy-driven hydrogen production system was developed.

• A rotatory disc-shaped triboelectric nanogenerator (RD-TENG) enables to harvest mechanical energy from water flow and functions as a sufficient external power source.

• WO₃/BiVO₄ heterojunction is fabricated as photoanodes in the self-powered photoelectrochemical (PEC) cell, and the hydrogen production rate reaches to 7.27 μL min⁻¹ under sunlight illumination with the energy conversion efficiency of 2.59%.

中文翻译：

---

机械和太阳能混合驱动的自产氢气生产

• 开发了一种由机械和太阳能驱动的混合制氢系统。

• 旋转盘状摩擦电纳米发电机（RD-TENG）能够从水流中收集机械能，并可以作为充足的外部动力源。

• WO ₃ / BiVO ₄异质结在自供电光电化学电池中制备为光阳极，在阳光照射下产氢率达到7.27μLmin ^-1，能量转换效率为2.59％。