No abstract

The interfacial interaction in the In2S3@Bi2S3 vdW heterostructure is beneficial for transferring photogenerated holes to the surface with efficient water oxidation.

No abstract

The development of efficient and stable non-noble-metal electrocatalytic materials for the oxygen evolution reaction (OER) is a huge and important challenge at present.

Layered NbS 2 , a member of group-V transition metal dichalcogenides, was synthesized via a colloidal synthesis method and employed as a negative material for a supercapacitor. The morphologies of NbS 2 can be tuned from ultrathin nanosheets to hierarchical structures through dynamics controls based on growth mechanisms. Electrochemical energy storage measurements present that the ultrathin NbS 2 electrode exhibits the highest rate capability due to having the largest electrochemical surface area and its efficient ion diffusion. Meanwhile, the hierarchical NbS 2 shows the highest specific capacitance at low current densities for small charge transfer resistance, displays 221.4 F g −1 at 1 A g −1 and 117.1 F g −1 at 10 A g −1 , and cycling stability with 78.9% of the initial specific capacitance after 10,000 cycles. The aggregate or stacking of nanosheets can be suppressed effectively by constructing hierarchical structure NbS 2 nanosheets.