Hollow SnO2 microspheres and their carbon-coated composites for supercapacitors

- Fine controlled core shell structure of sPS@SnO2 particles.
- Hollow SnO2 microspheres are prepared via template assisted method in hydrothermal environment and high-temperature calcination treatment for removal of sPS.
- SnO2@C composite hollow spheres were fabricated.
- SnO2@C composite leads to an improved electrochemical performance in supercapacitors due to a suitable carbon coating.