Hydrogen is regarded as the most promising green clean energy in the 21st century. Developing the highly efficient and low-cost electrocatalysts for oxygen evolution reaction (OER) is of great concern for the hydrogen industry. In the water electrolyzed reaction, the overpotential and the kinetics are the main hurdles for OER. Therefore, an efficient and durable oxygen evolution reaction electrocatalyst is required. In this study, an activated graphene (AG)-black phosphorus (BP) nanosheets hybrid is fabricated for supporting Ni3 N particles (Ni3 N/BP-AG) in the application of OER. The Ni3 N particles are combined with the BP-AG heterostructure via facile mechanical ball milling under argon protection. The synthesized Ni3 N/BP-AG shows excellent catalytic performance toward the OER, demanding the overpotential of 233 mV for a current density of 10 mA cm-2 with a Tafel slope of 42 mV dec-1 . The Ni3 N/BP-AG catalysts also show remarkable stability with a retention rate of the current density of about 86.4% after measuring for 10 000 s in potentiostatic mode.

中文翻译：

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二维活化石墨烯-黑磷异质结构上负载的氮化镍颗粒：氧释放反应的高效电催化剂。

氢被认为是21世纪最有希望的绿色清洁能源。开发用于氧气析出反应（OER）的高效，低成本的电催化剂是制氢行业极为关注的问题。在水电解反应中，过电势和动力学是OER的主要障碍。因此，需要有效且持久的氧释放反应电催化剂。在这项研究中，为支持OER应用中的Ni3 N颗粒（Ni3 N / BP-AG），制备了一种活化的石墨烯（AG）-黑磷（BP）纳米片杂化物。在氩气保护下，通过机械球磨将Ni3 N颗粒与BP-AG异质结构结合。合成的Ni3 N / BP-AG对OER具有优异的催化性能，要求电流密度为10 mA cm-2且Tafel斜率为42 mV dec-1时233 mV的过电势。Ni3 N / BP-AG催化剂还显示出显着的稳定性，在恒电位模式下测量10000 s后，电流密度的保留率约为86.4％。