School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 610054, P. R. China.
Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, P. R. China.
Chem Commun (Camb). 2022 Mar 3;58(19):3214-3217. doi: 10.1039/d1cc06778h.
The traditional Haber-Bosch process in industry to produce NH leads to excessive CO emissions and a large amount of energy consumption. Ambient electrochemical N reduction is emerging as a green and sustainable alternative method to convert N to NH, but is in sore need of efficient and stable electrocatalysts. Herein, we propose using Pd-doped TiO nanoparticles as a high-efficiency electrocatalyst to synthesize NH under ambient conditions. The Pd-TiO catalyst delivers a large NH yield (17.4 μg h mg) and a high faradaic efficiency (12.7%) at -0.50 V reversible hydrogen electrode in a neutral electrolyte, outperforming most Pd- and Ti-based electrocatalysts recently reported for N reduction. Most importantly, it also demonstrates extraordinary long-term electrochemical stability.
工业上传统的 Haber-Bosch 工艺生产 NH 会导致过多的 CO 排放和大量的能源消耗。环境电化学 N 还原作为一种将 N 转化为 NH 的绿色可持续替代方法正在兴起，但迫切需要高效稳定的电催化剂。在此，我们提出使用 Pd 掺杂的 TiO 纳米粒子作为高效电催化剂，在环境条件下合成 NH。在中性电解质中，在-0.50 V 可逆氢电极下，Pd-TiO 催化剂的 NH 产率（17.4μg h mg）和法拉第效率（12.7%）都很高，超过了最近报道的大多数 Pd 和 Ti 基电催化剂用于 N 还原。最重要的是，它还表现出非凡的长期电化学稳定性。
