분석과학 (Analytical Science and Technology)
- 제9권1호
- /
- Pages.43-51
- /
- 1996
- /
- 1225-0163(pISSN)
- /
- 2288-8985(eISSN)
Li-CICs의 Deintercalation에 따른 구조변이와 열적, 전기적 안정성과의 관계(II) : Li-EaGDICs와 Li-EGDICs에 관하여
The relation of structural transition, thermal and electrical stability deintercalation of Li- CICs(II) : For Li-EaGDICs and Li-EGDICs
- Oh, Won-Chun (Institute of Carbon Chemistry, Seoul National University of Education) ;
- Park, Chung-Oh (Department of Chemistry, Dankook University) ;
- Back, Dae-Jin (Department of Chemistry, Hanseo University) ;
- Ko, Young-Shin (Institute of Carbon Chemistry, Seoul National University of Education)
- 투고 : 1995.10.09
- 발행 : 1996.03.25
초록
가온 가압법에 의하여 합성된 Li-EaGICs, Li-EGICs를 자발적으로 분해시켜서 이들의 deintercalation 과정에 대하여 X-선 회절분석, 열분해분석 및 전기비저항값을 측정하여 이들 결과에 대하여 토론하였다. Intercalation에 대한 X-선 회절분석 결과에 의하면, Li-EaGICs 와 Li-EGICs는 1 stage가 완전하게 형성되지 않았고, 주로 저차 stage가 형성되었다. 또한 deintercalation 결과에 의하면, 4주 이후에는 deintercalation이 멈추었으며 Li-EGDlCs는 Li-EaGDlCs보다 층간 잔유 금속을 많이 가지고 있음을 알 수 있다. 열분해분석 결과에 의하면 두가지 하합물 모두 강한 밭열반응을 수반하였으며, 또한
We have discussed on the deintercalation process of Li-EaGICs and Li-EGICs synthesized under pressure and temperature by spontaneous oxidation reaction of those compounds based on the results of X-ray diffraction, thermal analysis and electrical specific resistivity analysis. According to the results of the X-ray analysis for the intercalation process, we have found that the stage 1 for Li-EaGICs and Li-EGICs were not completly formed, but their lower stages were formed mainly. And from this results of the deintercalation process, we have found that the deintercalation process did not occur any more after 4 weeks, and the Li-EGDICs have more residual lithium metals than LiEaGDICs between the graphite interlayers. According to the thermal decomposition analysis, Li-two compounds had included very hard exothermic reaction. And we have found that these compounds did not occrurred deintercalation reaction above
키워드