Electrical properties of new oxides (Ca0.85-xY xOH)1.16CoO2 synthesized by hydrothermal process

Jian Pei; Gang Chen; Dechang Jia; Jingxue Sun; Yaoguang Yu

doi:10.1016/S1002-0721(12)60327-5

Electrical properties of new oxides (Ca_0.85-xY _xOH)_1.16CoO₂ synthesized by hydrothermal process

Jian Pei
, Gang Chen^*
, Dechang Jia
, Jingxue Sun
, Yaoguang Yu

^*Corresponding author for this work

Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

Abstract

Layered cobalt oxides (Ca_0.85-xY_xOH) _1.16CoO₂ (x=0, 0.05, 0.1) were prepared by hydrothermal process and were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The electrical conductivity and Seebeck coefficient were measured from 323 to 573 K. The XRD and SEM analysis showed that all samples were single phase with plate-like morphology. The substitution of trivalent Y for divalent Ca had a remarkable effect on the enhancement of electrical properties. The maximum PF value, 9.17×10^-5 W/(m·K ²), was obtained for (Ca_0.75Y_0.1OH) _1.16CoO₂ at 573 K, indicating that they are promising thermoelectric materials for middle-temperature usage.

Original language	English
Pages (from-to)	600-603
Number of pages	4
Journal	Journal of Rare Earths
Volume	31
Issue number	6
DOIs	https://doi.org/10.1016/S1002-0721(12)60327-5
State	Published - Jun 2013

Keywords

Electrical property
Hydrothermal synthesis
Layered cobalt oxide
Rare earths
Substituting

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10.1016/S1002-0721(12)60327-5

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title = "Electrical properties of new oxides (Ca0.85-xY xOH)1.16CoO2 synthesized by hydrothermal process",

abstract = "Layered cobalt oxides (Ca0.85-xYxOH) 1.16CoO2 (x=0, 0.05, 0.1) were prepared by hydrothermal process and were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The electrical conductivity and Seebeck coefficient were measured from 323 to 573 K. The XRD and SEM analysis showed that all samples were single phase with plate-like morphology. The substitution of trivalent Y for divalent Ca had a remarkable effect on the enhancement of electrical properties. The maximum PF value, 9.17×10-5 W/(m·K 2), was obtained for (Ca0.75Y0.1OH) 1.16CoO2 at 573 K, indicating that they are promising thermoelectric materials for middle-temperature usage.",

keywords = "Electrical property, Hydrothermal synthesis, Layered cobalt oxide, Rare earths, Substituting",

author = "Jian Pei and Gang Chen and Dechang Jia and Jingxue Sun and Yaoguang Yu",

year = "2013",

month = jun,

doi = "10.1016/S1002-0721(12)60327-5",

language = "英语",

volume = "31",

pages = "600--603",

journal = "Journal of Rare Earths",

issn = "1002-0721",

publisher = "Editorial Office of Chinese Rare Earths",

number = "6",

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TY - JOUR

T1 - Electrical properties of new oxides (Ca0.85-xY xOH)1.16CoO2 synthesized by hydrothermal process

AU - Pei, Jian

AU - Chen, Gang

AU - Jia, Dechang

AU - Sun, Jingxue

AU - Yu, Yaoguang

PY - 2013/6

Y1 - 2013/6

N2 - Layered cobalt oxides (Ca0.85-xYxOH) 1.16CoO2 (x=0, 0.05, 0.1) were prepared by hydrothermal process and were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The electrical conductivity and Seebeck coefficient were measured from 323 to 573 K. The XRD and SEM analysis showed that all samples were single phase with plate-like morphology. The substitution of trivalent Y for divalent Ca had a remarkable effect on the enhancement of electrical properties. The maximum PF value, 9.17×10-5 W/(m·K 2), was obtained for (Ca0.75Y0.1OH) 1.16CoO2 at 573 K, indicating that they are promising thermoelectric materials for middle-temperature usage.

AB - Layered cobalt oxides (Ca0.85-xYxOH) 1.16CoO2 (x=0, 0.05, 0.1) were prepared by hydrothermal process and were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The electrical conductivity and Seebeck coefficient were measured from 323 to 573 K. The XRD and SEM analysis showed that all samples were single phase with plate-like morphology. The substitution of trivalent Y for divalent Ca had a remarkable effect on the enhancement of electrical properties. The maximum PF value, 9.17×10-5 W/(m·K 2), was obtained for (Ca0.75Y0.1OH) 1.16CoO2 at 573 K, indicating that they are promising thermoelectric materials for middle-temperature usage.

KW - Electrical property

KW - Hydrothermal synthesis

KW - Layered cobalt oxide

KW - Rare earths

KW - Substituting

UR - https://www.scopus.com/pages/publications/84893139894

U2 - 10.1016/S1002-0721(12)60327-5

DO - 10.1016/S1002-0721(12)60327-5

M3 - 文章

AN - SCOPUS:84893139894

SN - 1002-0721

VL - 31

SP - 600

EP - 603

JO - Journal of Rare Earths

JF - Journal of Rare Earths

IS - 6

ER -

Electrical properties of new oxides (Ca_0.85-xY _xOH)_1.16CoO₂ synthesized by hydrothermal process

Abstract

Keywords

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