One-pot construction of highly oriented Co-MOF nanoneedle arrays on Co foam for high-performance supercapacitor.

Highly oriented Co-MOF nanoneedle arrays areconstructed on Co foam (Co-MOF@Co) by using a one-pot solvothermal strategy. As-prepared Co-MOF@Co can be directly served as a binder-free electrode for supercapacitor, which exhibits wonderful electrochemical performances, i.e.