3D-Printed Hierarchically Microgrid Frameworks of Sodiophilic Co₃O₄@C/rGO Nanosheets for Ultralong Cyclic Sodium Metal Batteries.

ABSTRACT: Herein, hierarchically structured microgrid frameworks of Co₃O₄ and carbon composite deposited on reduced graphene oxide (Co₃O₄@C/rGO) are demonstrated through the three-dimensioinal (3D) printing method, where the porous structure is controllable and the height and width are scalable, for dendrite-free Na metal deposition. The sodiophilicity, facile Na metal deposition kinetics, and NaF-rich solid electrolyte interphase (SEI) formation of cubic Co₃O₄ phase are confirmed by combined spectroscopic and computational analyses. Moreover, the uniform and reversible Na plating/stripping process on 3D-printed Co₃O₄@C/rGO host is monitored in real time using in situ transmission electron and optical microscopie

SUBMITTER: Bai W 

PROVIDER: S-EPMC11425270 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature