本文首先采用高温化学气相沉积技术(CVD)在泡沫镍模板上生长三维石墨烯(3DG),然后利用化学浴沉积在石墨烯表面沉积碱式镍沉淀,氩气退火后得吸附氧化镍纳米片晶的石墨烯复合膜(3DG/NiO).X-射线衍射(XRD)、拉曼(Raman)光谱、场发射扫描电子显微镜(FESEM)表征表明:泡沫镍表面生长了致密的三维石墨烯膜,层与层之间呈现明显的堆垛方式;石墨烯膜表面吸附了大量的NiO纳米片状晶体,相邻的纳米晶相互连接形成多孔结构.循环伏安(CV)曲线研究表明:3DG/NiO膜可作为兼具双电层电容和赝电容性能的复合型电极材料.充放电曲线研究表明:3DG/NiO电极的稳定充、放电比电容处于350～400F·g-1之间,300次循环后仅衰减1.12％,库仑效率保持在95％以上.
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