Cobalt sulfides/dodecahedral porous carbon as anode materials for Na-ion batteries†
Abstract
One facile synthetic route of 3-dimensional core–shell cobalt sulfides/dodecahedral porous carbon (cs-CoxSy/DPC) that is in situ derived from a Co-based zeolitic imidazolate framework (ZIF-67) has been reported. The cs-CoxSy/DPC shows good Na-storage performance.