Hollow hybrid spheres have been the focus of substantial efforts in areas of energy storage/conversion, especially those with carbon shells. However, current synthesis methods require complicated multistep procedures and show inadequate capability to anchor ultrafine particles with compositional complexity and controllable content, thus far restricting the potentials. Here, we report the preparation of hollow hybrid carbon spheres with encapsulated ultrafine metal nitrides/oxides by one-pot domino-driven synthesis, which involves micelle-interfacial copolymerization for shell formation and spontaneous copolymerization-induced oxometallate condensation inside micelles for encapsulation, followed by controlled pyrolysis. The synthetic platform shows remarkable generality and adjustability, enabling full access to multifarious particles with ultrafine size and tunable content. The reduced dimension of the vanadium nitride nanocluster encapsulated in a hollow carbon cavity facilitates surface-dominated potassium storage with superior capacity and high rate performance. The versatile synthesis and manipulation will expand the scope of hollow hybrid material for widespread applications.

空心混合球一直是能量存储/转换领域特别是具有碳壳的领域的实质性工作重点。然而，当前的合成方法需要复杂的多步程序，并且显示出不足以锚定具有组成复杂性和可控含量的超细颗粒的能力，因此远远限制了其潜力。在这里，我们报告通过一锅多米诺骨牌驱动的合成制备具有封装的超细金属氮化物/氧化物的中空杂化碳球，该合成涉及胶束-界面共聚以形成壳，并在胶束内部自发发生共聚诱导的金属氧酸盐缩合，然后进行封装控制热解。综合平台具有出色的通用性和可调整性，可以完全访问具有超细尺寸和可调内容的多种粒子。封装在空心碳腔中的氮化钒纳米簇的尺寸减小，有利于以表面为主的钾存储，并具有出众的容量和高倍率性能。通用的合成和处理方法将扩大中空杂化材料的应用范围，从而获得广泛的应用。