此外，多孔石墨烯的振實密度(0.72 g/cm3)比rECG(0.0064 g/cm3)高出約兩個數量級，表示多孔石墨烯較不易因回疊而損耗電容量以及具有較高體積電容，本研究證實能夠控制多孔石墨烯的孔洞結構，使電極材料在高負載量時仍能確保離子傳輸的效率，同時也了解到孔洞結構的重要性，並為可控性多孔石墨烯為基礎的技術開啟新的應用道路。 ;Nanoporous holey-graphene (HG) recently, made a sensation in scientific and industrial community because of its just actualized versatile potentials in several technologically important fields. The versatility of HG demands a complete control over its entire pore-architecture and density. Particularly, for ultra-high storage and rapid delivery of energy, along with well-tailored porosity, facile through-thickness ion-transport in a high-mass-loaded electrode is immensely important. Here we report, a unique, simple and cost effective copper nanocatalyst assisted predefined porosity tailoring of HG leading to extraordinary high pore-density exceeding 1103 per µm-2. Synchronizing the porosity with high-mass loading results in excellent supercapacitor performance of at least an order higher areal capacitance (~100% retention up to 15000 cycles), energy and power densities along with 90% retainment of gravimetric capacitance (as a function of mass loadings) than rECG. A rapid increase (1.5 fold higher than rECG) of diffusion coefficient (4.0102 fold) as a function of mass loading suggest excellent non-tortuous ion-transport in 15 mg cm-2 HG electrode. Further, two order higher tap-density of HG (0.72 g cm-3) as compared to rECG (0.0064 g cm-3) suggests lower restacking and higher volumetric capacitance of HG. As far our knowledge, this is the first report of complete tailoring of HG porosity blended to facile ion-transport in a high mass loaded electrode and opens new avenue for futuristic HG based technologies wherein pore architecture is significantly important.
