Ultrafine transition metal oxides have great potential for efficient lithium storage but some key problems, such as a strong tendency to aggregate and poor electrical conductivity, need to be solved for their possible application. Here, hybrid nanoparticles of CoMoO₄ and N-doped carbon were formed in a petroleum asphalt-based porous carbon prepared by a template method. A Co-based zeolitic imidazolate framework (ZIF-67) was then synthesized in-situ in its pores from Co(NO₃)₂·6H₂O and 2-methylimidazole. The porous carbon was impregnated with Na₂MoO₄·2H₂O and polyvinyl pyrrolidone, followed by solvothermal treatment at 180 ^oC for 24 h and finally calcination to convert the loaded components into hybrid nanoparticles of CoMoO₄ and N-doped carbon. Results indicate that the N-doped carbon boosts the electron transport ability of CoMoO₄ and efficiently prevents its aggregation. At an optimal CoMoO₄ loading the composite was used as an anode material in a lithium ion battery and delivered a reversible specific capacity of 818 mAh g^-1 at 1 A g^-1, an initial coulombic efficiency of around 70%, and outstanding cycle and structural stability during cycling. The strategy reported here may open up a new avenue for the rational design and construction of well-designed electrode materials for energy storage.

超细过渡金属氧化物具有高效锂存储的巨大潜力，但一些关键问题，例如强烈的聚集趋势和不良的导电性，需要加以解决才能用于其可能的应用。在此，在通过模板法制备的石油沥青基多孔碳中形成了CoMoO ₄和N掺杂碳的杂化纳米颗粒。然后由Co（NO ₃）₂ ·6H ₂ O和2-甲基咪唑在其孔中原位合成Co基沸石咪唑酸酯骨架（ZIF-67）。将多孔碳用Na ₂ MoO ₄ ·2H ₂ O和聚乙烯吡咯烷酮浸渍，然后在180℃进行溶剂热处理。^在室温下放置24小时，最后煅烧以将负载的组分转化为CoMoO ₄和N掺杂碳的杂化纳米颗粒。结果表明，N掺杂的碳提高了CoMoO ₄的电子传输能力，并有效地防止了其聚集。在最佳的CoMoO ₄装载的复合物用作锂离子电池的阳极材料和输送的818毫安g的可逆比容量^-1 1 A G ^-1，约70％的初始库仑效率和出色的循环循环中的结构稳定性。本文报道的策略可能会为合理设计和构造储能良好的电极材料开辟新的途径。