Development of Novel Guest Phases Confined in Carbon Based Micropore Space and Their Properties

（1）纳米石墨是由纳米金刚石的热处理衍生出来的，研究了纳米金刚石与其结构、电子结构和宿主系统的关系。来自拉曼光谱和X射线衍射，发现纳米金刚石在1600℃左右转换成纳米图形。纳米图形具有一种新颖的电子结构，其特点是具有非绑定π-电子状态的边缘起源。非束缚的边缘国家在边缘扮演了一个重要的角色，作为一个快速放松中心。自旋晶格放松过程在1200℃左右准备了较低的图形化颗粒的低温度下被分解，其中可以解释为Remnant Spy D13-D1区域的存在。在电子结构中，Potassium的相互作用使边缘国家变得不重要，因为从Potassium到图形的电荷转移。Potassium的存在可以增强自旋轨道交互作用。（2）活性碳纤维的电子性质是被调查的，是纳米石墨紊乱网络的一个主要因素。热治疗导致了1300 ° C左右的绝缘剂到金属过渡，因此导致了无限渗透路径网络的发展。在绝缘状态下，电荷效应在电子跳跃过程中很重要，而金属状态的特点是一个可预见的紊乱量。在绝缘体到金属过渡的微生物中，自旋玻璃类似于紊乱的磁性出现在自旋边缘继承的非束缚状态与π-conduction-electron介导的相互作用的地方。微孢子中水分子的物理学解释表明纳米-图形域减少了自旋集中度。这可以在引入水分子的有效压力下解释了纳米间图形相互作用的增强的术语。

(1) Nano-graphite derived by the heat-treatment of nano-diamond is investigated in relation to their structures, electronic structures and host-guest systems with potassium and bromine. From Raman spectra and X-ray diffraction, it is found that nano-diamond is converted to nano-graphite around 1600℃. Nano-graphite thus obtained has a novel electronic structure featured with non-bonding π-electron states of edge origin. The non-bonding edge states play an important role in the spin-lattice relaxation mechanism as fast relaxation centers at the edges. The spin-lattice relaxation process is decelerated in less graphitized particles prepared at lower temperatures around 1200℃, which can be explained by the presence of remnant spィイD13ィエD1 regions. Intercalation of potassium makes edge states less important in the electronic structure due to charge transfer from potassium to graphite. The presence of potassium works to enhance the spin-orbit interaction.(2) The electronic properties of activated carbon fibers are investigated, which consist of disordered network of nano-graphite. Heat-treatment induces an insulator-to-metal transition around 1300℃, due to the development of infinite percolation path networks. In the insulating state, the charging effect works importantly in the electron hopping process, while the metallic state is featured with a considerable amount of disorder. In the vicinity of the insulator-to-metal transition, spin-glass-like disordered magnetism appears where spins of edge-inherited non-bonding states are interacting with the aid of π-conduction-electron mediated interaction. Physisorption of water molecules in micropores surrounding nano-graphite domains induces a reduction of the spin concentration. This can be explained in terms of the enhancement of inter-nano-graphite interaction induced by the effective pressure of introduced water molecules.