CoS /N-Doped Hollow Spheres as an Anode Material for High-Performance Sodium-Ion Batteries.

In this work, we first synthesized polyacrylic acid (PAA) spheres and then used PAA as a template to load Co(OH) particles onto its surface. The product of CoS nanoparticles dispersed in N-doped hollow spheres (N-HCS) was prepared through sulfurization treatment (CoS /S@N-HCS). During the sulfuration process, sulfur penetrates into the PAA, embedding into the graphite layer along with the carbonization process.

Characteristics of urban streets in relation to perceived restorativeness.

The research on the restorative capacity of various environments has been growing exponentially in recent years. However, previous researchers mainly focus on urban green spaces, natural environments or urban landscapes. The streetscapes which have a close tie with residents' daily life and may have an essential effect on people's psychological wellbeing have not attracted extensive attention from academic research, failing to provide a cohesive guideline for streetscape design.