Lithium-sulfur batteries have been considered as a promising next-generation battery system because of their high theoretical energy density and natural abundance of sulfur. However, the loss of active material and the sluggish kinetics of polysulfide severely hinder the large-scale application. Herein, the highly dispersed MoP nanocrystallites encapsulated in phosphorus-doped porous carbon (MoP@PC) is successfully synthesized by metal organic framework–derived strategy. As a polysulfide reservoir, MoP@PC can efficiently capture and convert polysulfides by constructing a well-designed adsorption-conversion cooperative interface to enhance kinetics. Typically, the lithium-sulfur cell with a MoP@PC reservoir exhibits an initial specific capacity of 1158 mA h g^-1 at 0.5 C and an enhanced sulfur utilization of 17% (285 mA h g^-1). The present strategy provides applicable guidelines for synthesizing other highly dispersed transition metal compounds and optimizing the reaction interface of electrocatalyst material for lithium-sulfur battery.

锂硫电池由于其高的理论能量密度和自然的硫含量而被认为是有前途的下一代电池系统。然而，活性材料的损失和多硫化物的缓慢动力学严重阻碍了大规模应用。在此，通过金属有机骨架衍生的策略成功地合成了高掺杂的MoP纳米晶体，其包裹在掺磷的多孔碳中（MoP @ PC）。作为多硫化物储层，MoP @ PC可以通过构建精心设计的吸附-转化协同界面来增强动力学，从而有效地捕获和转化多硫化物。通常，具有MoP @ PC储层的锂硫电池的初始比容量为1158 mA hg ^-1在0.5 C的温度下，硫的利用率提高了17％（285 mA hg ^-1）。本策略为合成其他高度分散的过渡金属化合物和优化锂硫电池用电催化剂材料的反应界面提供了适用的指南。