Lignin is one of the most abundant natural polymers, which is characterized as affordable, high carbon content and abundant active functional groups. At present, lignin-derived carbon is considered ideal promising...

Transition metal tungstates (MWO4), a well-performed electrode material for supercapacitors thanks to their intrinsically outstanding electrochemical property, has recently emerged and drawn great attention. Herein, we synthesized bimetallic Ni4-xCoxWO4 (x=0.5,...