Self-assembled hierarchical hollow CuS@MoS 2 microcubes with superior lithium storage

Template-free synthesis of Mn2+ doped hierarchical CuS yolk-shell microspheres for photocatalytic reduction of Cr(VI)

Yolk-shell structures have been widely used in catalysis and energy storage in recent years because they improve the efficiency of charge utilization by enhancing light scattering and creating more active...

Engineering stable and fast sodium diffusion route by constructing hierarchical MoS2 hollow spheres

Two-dimensional layered transition metal dichalcogenides, such as MoS₂, have been considered to be a promising anode material for sodium storage. However, their performance have been limited by the sluggish sodium diffusion kinetics. In this work, high performance anode material was obtained through constructing hierarchical MoS₂ nanosheets assembled hollow spheres. The used self-templating method show more feasibility than the commonly reported template removal-involved routes. The prepared hollow structure can also provide rapid and stable electron/sodium ion transport without the assistance of conducting substrates, which enables the MoS₂ anodes exhibit a high specific capacity of 527 mAh g^-1 at 0.1 A g^-1. Even at a high current density of 1 A g^-1, capacity of 357 mAh g^-1 can still be obtained after 500 cycles (capacity retention ~94.5%). This work provides a facile way towards high performance MoS₂ anode materials for sodium-ion battery.

Chinese hydrangea lantern-like Co9S8@MoS2 composites with enhanced lithium-ion battery properties

Chinese hydrangea lantern-like Co₉S₈@MoS₂ composites are prepared by a facile solvothermal method. Ultra-thin MoS₂ nanosheets as the shells grow tightly and uniformly on the surface of the Co₉S₈ core. Due to their unique hierarchical core-shell structure and novel morphology, the composites show excellent electrochemical performance as the anode materials of lithium-ion batteries. They can deliver reversible discharge capacities of around 1298, 1150, 1089, 1018 and 941 mA h g^-1 at the current densities of 0.1, 0.5, 1, 1.5 and 2.0 A g^-1, respectively. Moreover, the Co₉S₈@MoS₂ composites can still maintain a discharge capacity of 1048 mA h g^-1 after 300 cycles at a current density of 1.0 A g^-1.

Hierarchical Ag/Bi2MoO6 hollow nanoboxes with high photocatalytic performance

Well-ordered hierarchical Ag/Bi₂MoO₆ hollow nanoboxes are obtained through an artful hydrothermal method. Ag₃PO₄ nanocubes serve as growth templates and precursor sources of Ag. Ag₃PO₄ is reduced to Ag nanoparticles, which are dispersed on the nanosheet-built hierarchical Bi₂MoO₆ nanoboxes. With the investigation of intermediate products, the growth process of Ag/Bi₂MoO₆ is studied. Due to the hierarchical hollow structure and the introduction of Ag, the Ag/Bi₂MoO₆ nanoboxes exhibit enhanced visible-light absorption and photocatalytic performance compared to the pristine Bi₂MoO₆ microboxes.

Interconnected molybdenum disulfide@tin disulfide heterojunctions with different morphologies: a type of enhanced counter electrode for dye-sensitized solar cells

The MoS₂@SnS₂ heterojunctions have been synthesized and displayed the enhanced performance due to the specific crystal structure.