VN Quantum Dots Anchored onto Carbon Nanofibers as a Superior Anode for Sodium Ion Storage.

ABSTRACT: Vanadium-based compounds exhibit a high theoretical capacity to be used as anode materials in sodium-ion batteries, but the volume change in the active ions during the process of release leads to structural instability during the cycle. The structure of carbon nanofibers is stable, while it is difficult to deform. At the same time, the huge specific surface area energy of quantum dot materials can speed up the electrochemical reaction rate. Here, we coupled quantum-grade VN nanodots with carbon nanofibers. The strong coupling of VN quantum dots and carbon nanofibers makes the material have a network structure of interwoven nanofibers. Secondly, the carbon skeleton provides a three-dimensional channel for the rapid migration of sodium ions, and the material has low charge transfer resistanc

SUBMITTER: Wu X 

PROVIDER: S-EPMC11643878 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature