Triazolate-Functionalized Zirconium Nitride for Air-Fed H<sub>2</sub>O<sub>2</sub> Production with Industrial-Level Current Density
Jiahao Liu, Zhaorui Zhang, Xiaoli Wang, Chenshuai Han, Minghui Yang
Abstract
The electrochemical two-electron oxygen reduction reaction (2e – ORR) offers a green and energy-efficient pathway for hydrogen peroxide (H 2 O 2 ) production, yet reliance on high-purity oxygen significantly limits scalability. Here, we report a triazolate-modified zirconium nitride catalyst (T-ZrN) that enables efficient and durable H 2 O 2 electrosynthesis directly from atmospheric air. The T-ZrN catalyst achieves a high H 2 O 2 yield of 55.6 mol·h –1 ·g –1 and a Faradaic efficiency of 93.2%, while maintaining stable operation over 540 h at an industrial-level current density of 800 mA·cm –2 . Economic analysis reveals a production cost of 70 wt % H 2 O 2 as low as $0.10 kg –1, highlighting its commercial potential. This work presents a viable strategy for cost-effective and decentralized H 2 O 2 manufacturing advancing sustainable chemical production technologies.