Carbon-based hollow nanostructures offer promising potential for a variety of energy-related fields, owing to their special structural characteristics and fascinating physicochemical properties. In this paper, graphdiyne hollow nano spheres (GDY-HNSs) were reported to be prepared through a facile solvothermal synthesis technique with copper oxide nanospheres as both template and source of catalyst. The surface morphologies and the shell thickness of the prepared GDY-HNSs can be easily controlled by simply adjusting the amount of the precursor. Besides, the GDY-HNSs exhibit hierarchical nanostructures, large specific surface areas, and appropriate hollow interior, which offer substantial active sites and contact area between electrode and electrolyte while applied as anode, reducing the diffusion paths for both relative ions and electrons. Thus, while applied in lithium-ion batteries, GDY-HNSs show enhanced electrochemical properties, including higher reversible specific capacity, improved rate capacity and cycling performance compared with most of other carbon materials, even in a large mass loading of 2.0 mg cm⁻².

碳基中空纳米结构由于其特殊的结构特征和令人着迷的理化性质，在各种能源相关领域具有广阔的发展前景。本文报道了石墨二炔中空纳米球（GDY-HNSs）是通过一种简便的溶剂热合成技术制备的，以氧化铜纳米球作为模板和催化剂来源。制备的GDY-HNS的表面形貌和壳厚度可以通过简单地调节前体的量来容易地控制。此外，GDY-HNS具有分层的纳米结构，较大的比表面积和适当的中空内部，当用作阳极时，它们在电极和电解质之间提供了足够的活性位点和接触面积，从而减少了相对离子和电子的扩散路径。从而，⁻²。