Abstract Molybdenum disulfide (MoS2) shows great potential in many applications, however, facile controlled synthesis of monodispersed nano-MoS2 still presents great challenges. Herein, three-dimensional, uniform and monodispersed MoO3-MoS2 hybrid nanospheres are fabricated through a facile two-step strategy. It is found that different morphology and structure (nanoplates, uniform nanospheres, rode, and irregular blocks) of the hybrid could be obtained by adjusting parameters. When evaluated as the catalyst for hydrogen evolution, the as-prepared monodispersed MoO3-MoS2 hybrid nanospheres exhibit higher catalytic activity than the hybrid with other structures. Meanwhile, it shows good durability and cycle stability due to the hierarchical structures. This work provides a neoteric and straightforward method for constructing three-dimensional MoS2 with a controlled structure and might drive the advancement of nano-catalyst.

中文翻译：

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用于高效析氢反应的单分散 MoO3-MoS2 杂化纳米球的简便可控合成

摘要 二硫化钼（MoS2）在许多应用中显示出巨大的潜力，然而，单分散纳米MoS2的简便可控合成仍然面临着巨大的挑战。在这里，三维、均匀和单分散的 MoO3-MoS2 混合纳米球是通过简单的两步策略制造的。发现通过调整参数可以获得不同形态和结构（纳米片、均匀纳米球、条状和不规则块）的杂化体。当评估作为析氢催化剂时，所制备的单分散 MoO3-MoS2 杂化纳米球比具有其他结构的杂化纳米球表现出更高的催化活性。同时，由于分层结构，它显示出良好的耐久性和循环稳定性。