I. Budzulyak, L. Yablon, M. Khemii, V. Kotsyubynsky, B. Rachiy, V. Boychuk, І.І. Budzulyak
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引用次数: 0
摘要
通过电子顺磁共振方法研究了多孔碳材料在掺入锰、铬和铁以及激光照射后电子子系统的变化。研究发现，锰的掺杂导致了多个顺磁中心的出现，而激光辐照则促进了电子在不同状态之间的重新分配，从而使电子的迁移率由于从 g = 3.9 状态过渡到 g = 6.0 状态而增加。多孔掺铁碳材料的莫斯鲍尔光谱显示，铁离子存在氧配位体，特别是形成了八元和四元络合物，铁核和氧核之间的电子密度发生了重新分配，因此，化学键的共价程度从 Fe3+ 变为 Fe2+。
Energy state of the electronic subsystem of porous carbon material caused by laser irradiation
The changes in the electronic subsystem of a porous carbon material caused by its doping with Mn, Cr, and Fe and laser irradiation were studied by the method of electron paramagnetic resonance. It has been found that Mn doping leads to the appearance of several paramagnetic centers, and laser irradiation facilitates the redistribution of electrons between different states so that their mobility increases due to the transition from the g = 3.9 to the g = 6.0 state. The Mössbauer spectroscopy of porous Fe-doped carbon material indicates the presence of oxygen ligands for iron ions, in particular the formation of octa- and tetra-complexes with redistribution of electron density between iron and oxygen nuclei, and, accordingly, changes in the degree of covalence of the chemical bond from Fe3+ to Fe2+.
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