Metallic-phase transition-metal dichalcogenides (TMDCs) exhibit unusual physicochemical properties compared with their semiconducting counterparts. However, they are thermodynamically unstable to access and it is even more challenging to construct their metastable-phase heterostructures. Herein, we demonstrate a general solution protocol for phase-controlled synthesis of distorted octahedral 1T WS₂-based (1T structure denotes an octahedral coordination for W atom) multidimensional hybrid nanostructures from two-dimensional (2D), one-dimensional (1D), and zero-dimensional (0D) templates. This is realized by tuning the reactivity of tungsten precursor and the interaction between crystal surface and ligands. As a conceptual study on crystal phase- and dimensionality-dependent applications, we find that the three-dimensional (3D) hierarchical architectures achieved, comprising 1T WS₂ and 2D Ni₃S₄, are very active and stable for catalyzing hydrogen evolution. Our results open up a new way to rationally design phase-controlled nanostructures with increased complexity and more elaborate functionalities.

与半导体相变金属相比，金属相过渡金属二硫化碳（TMDC）具有不同寻常的理化性质。然而，它们在进入时在热力学上是不稳定的，并且构造其亚稳态相异质结构更具挑战性。在这里，我们演示了变形八面体1T WS _2的相控合成的通用解决方案二维（2D），一维（1D）和零维（0D）模板的基于的（1T结构表示W原子的八面体配位）多维杂化纳米结构。这是通过调节钨前驱物的反应性以及晶体表面与配体之间的相互作用来实现的。作为对晶体相位和维数相关应用的概念研究，我们发现所实现的包括1T WS ₂和2D Ni ₃ S ₄的三维（3D）层次结构对于催化氢的释放非常活跃且稳定。我们的研究结果为合理设计相控纳米结构开辟了新途径，该结构具有更高的复杂性和更精细的功能。