Exploring multifunctional electrocatalysts is crucial for the development of energy conversion and storage equipments, such as fuel cells, water splitting devices and zinc-air batteries. Herein, we provide a rational design whereby the cobalt phosphide particles are introduced into molybdenum sulfide nanosheets to form a heterostructure (MoS₂||CoP) through the ultrasonic method and calcination. Subsequently, N, P-doped carbon (NPC) is obtained synchronously. The as-prepared MoS₂||CoP/NPC demonstrates highly effective multifunctional catalytic performance for oxygen evolution and hydrogen evolution reaction at lower overpotential, as well as oxygen reduction reaction at high half-wave potential. What this reveals is higher power density and superior stability in zinc-air battery. The excellent electrocatalytic activity of MoS₂||CoP/NPC may be attributed to the presence of the MoS₂||CoP heterostructure, as well as N, P-doped carbon coupled with a high percentage of pyridinic-N. This work proposes a novel and facile strategy to prepare the heterostructure compound and serves as a good reference for constructing efficient and low-cost electrocatalysts.

探索多功能电催化剂对于燃料电池、水分解装置和锌空气电池等能量转换和存储设备的发展至关重要。在此，我们提供了一种合理的设计，通过超声波方法和煅烧将磷化钴颗粒引入硫化钼纳米片中以形成异质结构（MoS ₂ ||CoP）。随后，同步获得了 N，P 掺杂的碳（NPC）。制备的 MoS ₂||CoP/NPC 在较低过电位下对析氧和析氢反应以及在高半波电位下的氧还原反应表现出高效的多功能催化性能。这揭示了锌空气电池具有更高的功率密度和卓越的稳定性。MoS ₂ ||CoP/NPC优异的电催化活性可能归因于 MoS ₂ ||CoP 异质结构的存在，以及 N、P 掺杂的碳与高比例的吡啶-N 结合。这项工作提出了一种新颖且简便的制备异质结构化合物的策略，为构建高效、低成本的电催化剂提供了良好的参考。