“…For nearly two decades, graphene has drawn significant attention from scholars owing to its extraordinary properties, which are applicable in diverse industries such as aerospace, energy, and infrastructure construction [ 5 , 6 , 7 ]. Graphene and its relative composites can be synthesized via bottom-up and top-down methodologies including chemical vapor deposition (CVD), liquid exfoliation, and electrochemical co-synthesis [ 8 , 9 , 10 , 11 , 12 ]. For graphene materials, the existence of abundant sharp-edged structures can act as efficient field emission sites [ 13 , 14 ].…”