Formation of Novel Graphitic Porous Nano-Carbon with Metal Atom Layers inside

2009年，我们成功地合成了石墨烯多壁蜂窝状碳（GAC），它主要由三层石墨烯片组成，内部是电荷传导层，外部是催化剂支撑层。这保证了高化学稳定性，防止催化位点周围的氧化还原化学变化。这种结构与具有主要是单壁中孔的中孔碳纳米枝晶（MCND）形成对比，而这种结构对于燃料电池电极是最有利的。铂纳米颗粒被紧密地支撑在孔内。铂表面的活性表面积达60m^2/g以上，该系统特别在高相对湿度和有氧条件下工作得很好。发现GAC适合于在孔内具有硅层的锂离子二次电池阳极。我们正在努力设计GAC和MCND的大规模生产工业流程。

In 2009, we have succeeded to synthesize Graphene-multiwalled Alveolate Carbon(GAC) that is made of mostly three layers of graphene sheets with inner charge-conductive layers and outer catalysis-supporting layers. This guarantees high chemical stability against oxidation-reduction chemical changes around catalysis sites. This structure is in contrast with the Mesoporous Carbon Nano-Dendrite(MCND) with mostly singly walled mesopores, while this structure is most favorable for fuel cell electrodes. Platinum nanoparticles are supported tightly inside the pores. Active surface area of the platinum surface amounts to more than 60m^2/g and this system works very well particularly at high relative humidity and aerobic condition. GAC is found to be suited for Lithium ion secondary battery anodes with silicon layers inside the pores. We are trying to design mass-productive industrial processes both of GAC and MCND.