Size-tuned hollow nanoparticles of MoS₂ sulfides (“inorganic fullerenes”, IF) have been prepared using topotactic solid-gas reaction of nanoparticulate scheelites AMoO₄ (A = Ca, Sr, Ba) with H₂S/CCl₄ mixtures in a wide range of temperatures. The hollow nanoparticles showed high specific surface areas and outstanding thermal stability. As shown by electron microscopy and Raman spectroscopy characterizations, the amounts of residual slabs edges and the curvature-related defects in the IF-MoS₂ particles can be controlled independently by means of varying the particle size and the preparation temperature. The slabs edges disappear when the temperature increases, whereas the curvature − related defects withstand thermal treatments but their amount depends of the particle size. Temperature programmed reduction suggested the presence of sulfur species with a decreased bonding energy, attributed to the slabs curvature. Catalytic tests in the electrochemical hydrogen evolution reaction (HER) and thiophene hydrodesulfurization (HDS) evidenced significant contribution of curved basal planes to the catalytic activity, the magnitude of the effect being size-dependent.

MoS ₂硫化物（“无机富勒烯”，IF）的尺寸可调节的中空纳米粒子是使用纳米方沸石AMoO ₄（A = Ca，Sr，Ba）与H ₂ S / CCl ₄混合物在温度范围广。中空纳米颗粒显示出高的比表面积和出色的热稳定性。如电子显微镜和拉曼光谱表征所示，IF-MoS ₂中残余平板边缘的数量和与曲率相关的缺陷可以通过改变粒径和制备温度来独立地控制颗粒。当温度升高时，板坯边缘消失，而与曲率有关的缺陷可以经受热处理，但其数量取决于颗粒尺寸。程序升温还原表明，由于板的曲率，硫原子的结合能降低了。在电化学氢放出反应（HER）和噻吩加氢脱硫（HDS）中的催化测试表明，弯曲的基础平面对催化活性有重要贡献，其影响程度取决于尺寸。