Open AccessTHE ELECTRICAL PROPERTY AND ITS MECHANISM OF INTERCALATION COMPOUNDS OF CuCl2
Author(s) -
Xiuyun Chuan,
Chen Dai-Zhang,
Xiaowen Zhou,
Jiang Jia-Ji,
Hejun Li
Publication year - 1999
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.48.1132
Subject(s) - intercalation (chemistry) , materials science , graphite , microanalysis , x ray photoelectron spectroscopy , chlorine , electrical resistivity and conductivity , ion , conductivity , graphite intercalation compound , ionic bonding , particle (ecology) , analytical chemistry (journal) , inorganic chemistry , chemical engineering , chemistry , composite material , organic chemistry , metallurgy , oceanography , electrical engineering , engineering , geology
The electrical property of 1—4 stages of intercalation compounds of CuCl2, which were synthesized with 2—3μ graphite powder, was measured by the four-probe method. Their conductivity was 1.5—2.2 times as that of their host material, graphite. The higher the stage, the higher the conductivity. The microanalysis of chemical compounds by the X-ray energy spectrum scanning analysis of TEM testified that the atom ratio of chlorine and cupric was non-stoichoimetric. The vacancy of the chlorine anion the GICs increased the concentration of the carrier particle. They link up in c-axis, and enlarged the activity space of the carrier particle. The exchange of the electrovalence of the cupric ion has been testified by XPS-ESCA. Graphite and chloride in the stage structure, seem to be the conductor and insulator, which form the “sandwich” structure. This special structure produced a weak chemical bond belt and provided the carrier space in the perpendicular direction to the c-axis. These factors in and vertical to the direction of c-axis together increased the electrical properties.