Holey graphene nanosheets (HGNS) contain nanoholes on the surface of graphene sheets and these nanoholes can provide the rich mass transfer channel for the electrons and the ions, thus induce more hole edge defects, controllable band gap and better mechanical stability. Here, HGNS were massive production by dual-electrochemical intercalation and microwave-assisted expansion of graphite. The final obtained HGNS contain few layer graphene (5-10 layers), with ultralow defects (I_D/I_G <0.07) and higher electrical conductivity (691S/cm). The holey anodic graphene nanosheets demonstrate a narrow peak of pore size distribution centering at around 1.13 nm, 3nm and a broad range from 3nm to 252 nm centered at 68nm, which denoting the characters of micropore, mesoporous and macropore structure. The holey cathodic graphene nanosheets with the feature of mesoporous and macropore structure in which the pore size in the range of 2nm-252nm centered at 3.18nm, 68nm.

多孔石墨烯纳米片（HGNS）在石墨烯片的表面上包含纳米孔，这些纳米孔可为电子和离子提供丰富的传质通道，从而引发更多的空穴边缘缺陷，可控的带隙和更好的机械稳定性。在这里，HGNS通过双电化学插层和微波辅助膨胀石墨而大量生产。最终获得的HGNS包含很少的石墨烯层（5-10层），具有超低缺陷（I _D / I _G<0.07）和更高的电导率（691S / cm）。多孔阳极石墨烯纳米片表现出以1.13 nm，3nm为中心的孔径分布的窄峰，以68nm为中心在3nm至252nm的宽范围，这表明了微孔，中孔和大孔结构的特征。具有中孔和大孔结构特征的多孔阴极石墨烯纳米片，其中2nm-252nm范围内的孔径集中在3.18nm，68nm处。