Exploiting efficient and earth-abundant non-noble metal electrocatalysts for oxygen evolution reaction (OER) is extremely important for energy conversion and storage infrastructure. Herein, we synthesized a Co-based zeolite imidazolate framework-derived bimetallic boride electrocatalyst by a facile method without any energy loss, named ZIF@Ni-B-Co, which exhibits excellent OER activity and stability. At the current density of 10 mA cm⁻², it has a low overpotential of 300 mV and a Tafel slope of 77 mV dec⁻¹, which is better than noble metal RuO₂. The superior OER performance is attributed to the formation of a metal-boron bond, the morphology of specific dodecahedron, the large surface area and the fast charge transfer rate for the ZIF@Ni-B-Co catalyst. This work will provide new clues for the design and fabrication of metal-organic framework-derived composites, and offer some insights into the construction of crystallinity engineering.

开发高效且储量丰富的非贵金属电催化剂用于析氧反应 (OER) 对于能源转换和存储基础设施极为重要。在此，我们通过简便的方法合成了一种无任何能量损失的钴基沸石咪唑骨架衍生的双金属硼化物电催化剂，命名为 ZIF@Ni-B-Co，具有优异的 OER 活性和稳定性。在10 mA cm ^-2的电流密度下，它具有300 mV的低过电位和77 mV dec ^-1的Tafel斜率，优于贵金属RuO ₂. ZIF@Ni-B-Co催化剂的优异OER性能归因于金属-硼键的形成、特定十二面体的形态、大的表面积和快速的电荷转移速率。这项工作将为金属有机骨架衍生复合材料的设计和制造提供新的线索，并为结晶工程的构建提供一些见解。