Abstract
A new lithium iodide intercalation complex, Li0.3I 1.0Bi2Sr1.4La0.1Ca 1.5Cu2Oy, has been synthesized by applying a novel stepwise intercalation technique. According to X-ray diffraction analysis, lithium iodide species are stabilized between Bi2O2 double layers, leading to an increase of basal spacing of ∼3.4 Å per host layer. X-ray photoelectron and X-ray absorption spectroscopic analyses reveal that there is little charge transfer between the intercalant lithium iodide layer and host lattice. In this context, the observed minute change of Tc upon Li-I intercalation can be regarded as evidence of the negligible contribution of interlayer coupling to superconductivity. On the other hand, ac impedance analysis demonstrates that the intercalation complex of lithium iodide species shows a Li+ ionic conductivity in the order of ∼10-6Ω-1 cm-1 at a low temperature of <70°C. In combination with an excellent electronic conductivity of the host lattice, this material can be a new type of mixed Li+ ionic-electronic conductor. From the viewpoint of synthesis, the present compound is the first example of the stabilization of an alkali-metal halide in the two-dimensional metal oxide lattice.
| Original language | English |
|---|---|
| Pages (from-to) | 18455-18459 |
| Number of pages | 5 |
| Journal | Journal of Physical Chemistry B |
| Volume | 108 |
| Issue number | 48 |
| DOIs | |
| Publication status | Published - 2004 Dec 2 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Physical and Theoretical Chemistry
- Surfaces, Coatings and Films
- Materials Chemistry
Cite this
}
Incorporation of an ionic conducting alkali-metal halide into a two-dimensional copper oxide lattice through a novel stepwise intercalation route. / Park, Dae Hoon; Hur, Su Gil; Jun, Jong Ho; Hwang, Seong Ju.
In: Journal of Physical Chemistry B, Vol. 108, No. 48, 02.12.2004, p. 18455-18459.Research output: Contribution to journal › Article
TY - JOUR
T1 - Incorporation of an ionic conducting alkali-metal halide into a two-dimensional copper oxide lattice through a novel stepwise intercalation route
AU - Park, Dae Hoon
AU - Hur, Su Gil
AU - Jun, Jong Ho
AU - Hwang, Seong Ju
PY - 2004/12/2
Y1 - 2004/12/2
N2 - A new lithium iodide intercalation complex, Li0.3I 1.0Bi2Sr1.4La0.1Ca 1.5Cu2Oy, has been synthesized by applying a novel stepwise intercalation technique. According to X-ray diffraction analysis, lithium iodide species are stabilized between Bi2O2 double layers, leading to an increase of basal spacing of ∼3.4 Å per host layer. X-ray photoelectron and X-ray absorption spectroscopic analyses reveal that there is little charge transfer between the intercalant lithium iodide layer and host lattice. In this context, the observed minute change of Tc upon Li-I intercalation can be regarded as evidence of the negligible contribution of interlayer coupling to superconductivity. On the other hand, ac impedance analysis demonstrates that the intercalation complex of lithium iodide species shows a Li+ ionic conductivity in the order of ∼10-6Ω-1 cm-1 at a low temperature of <70°C. In combination with an excellent electronic conductivity of the host lattice, this material can be a new type of mixed Li+ ionic-electronic conductor. From the viewpoint of synthesis, the present compound is the first example of the stabilization of an alkali-metal halide in the two-dimensional metal oxide lattice.
AB - A new lithium iodide intercalation complex, Li0.3I 1.0Bi2Sr1.4La0.1Ca 1.5Cu2Oy, has been synthesized by applying a novel stepwise intercalation technique. According to X-ray diffraction analysis, lithium iodide species are stabilized between Bi2O2 double layers, leading to an increase of basal spacing of ∼3.4 Å per host layer. X-ray photoelectron and X-ray absorption spectroscopic analyses reveal that there is little charge transfer between the intercalant lithium iodide layer and host lattice. In this context, the observed minute change of Tc upon Li-I intercalation can be regarded as evidence of the negligible contribution of interlayer coupling to superconductivity. On the other hand, ac impedance analysis demonstrates that the intercalation complex of lithium iodide species shows a Li+ ionic conductivity in the order of ∼10-6Ω-1 cm-1 at a low temperature of <70°C. In combination with an excellent electronic conductivity of the host lattice, this material can be a new type of mixed Li+ ionic-electronic conductor. From the viewpoint of synthesis, the present compound is the first example of the stabilization of an alkali-metal halide in the two-dimensional metal oxide lattice.
UR - http://www.scopus.com/inward/record.url?scp=10444275287&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=10444275287&partnerID=8YFLogxK
U2 - 10.1021/jp046111s
DO - 10.1021/jp046111s
M3 - Article
AN - SCOPUS:10444275287
VL - 108
SP - 18455
EP - 18459
JO - Journal of Physical Chemistry B
JF - Journal of Physical Chemistry B
SN - 1520-6106
IS - 48
ER -