Title:
CATIO3-BASED OXIDE THERMOELECTRIC MATERIAL AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/196445
Kind Code:
A1
Abstract:
Disclosed are a CaTiO3-based oxide thermoelectric material and a preparation method therefor. The chemical formula of the CaTiO3-based oxide thermoelectric material is C1-xLaxTiO3, where 0 < x ≤ 0.4. The CaTiO3-based thermoelectric material is comparable in performance to oxide thermoelectric materials such as n-type ZnO, CaTiO3 and SrTiO3; in addition, a Ca0.85La0.15TiO3 ceramic sheet has a power factor of up to 8.2 μWcm-1K-2 (approximately 1000 K) and up to 9.2 μWcm-1K-2 at room temperature (approximately 300 K), and a conductivity of up to 2015 Scm-1 (at 300 K). The CaTiO3-based oxide thermoelectric material currently has the highest thermoelectric performance among calcium titanate ceramics. The method for preparing the CaTiO3-based oxide thermoelectric material has a simple process and a low cost, and a CaTiO3-based ceramic sheet with a high thermoelectric performance can thus be prepared.
Inventors:
KANG HUIJUN (CN)
WANG TONGMIN (CN)
LI JIANBO (CN)
CAO ZHIQIANG (CN)
CHEN ZONGNING (CN)
GUO ENYU (CN)
LU YIPING (CN)
JIE JINCHUAN (CN)
ZHANG YUBO (CN)
LI TINGJU (CN)
WANG TONGMIN (CN)
LI JIANBO (CN)
CAO ZHIQIANG (CN)
CHEN ZONGNING (CN)
GUO ENYU (CN)
LU YIPING (CN)
JIE JINCHUAN (CN)
ZHANG YUBO (CN)
LI TINGJU (CN)
Application Number:
PCT/CN2020/101807
Publication Date:
October 07, 2021
Filing Date:
July 14, 2020
Export Citation:
Assignee:
UNIV DALIAN TECH (CN)
International Classes:
C04B35/465; C04B35/622; H01L35/22
Foreign References:
| CN111377733A | 2020-07-07 | |||
| CN104973621A | 2015-10-14 | |||
| CN101423243A | 2009-05-06 |
Other References:
PARK JAE-WOO, LEE KI-TAE: "Ceramic Processing Research Electrochemical properties of Ca 1-x La x TiO 3 anode materials for solid oxide fuel cells", JOURNAL OF CERAMIC PROCESSING RESEARCH, INTERNATIONAL ORGANIZATION FOR CERAMIC PROCESSING, SEOUL, KR, vol. 18, no. 4, 31 December 2017 (2017-12-31), KR, pages 336 - 340, XP055854359, ISSN: 1229-9162, DOI: 10.36410/jcpr.2017.18.4.336
U. GUTH ; J. ZOSEL ; J. RIEDEL ; N. TRAN ; M. BERTHOLD ; C. VONAU ; U. SASUM ; P. SHUK ; M. PARAMASIVAM ; V. VASHOOK: "Novel electrode materials for electrochemical sensors", SENSING TECHNOLOGY (ICST), 2011 FIFTH INTERNATIONAL CONFERENCE ON, IEEE, 28 November 2011 (2011-11-28), pages 685 - 689, XP032099514, ISBN: 978-1-4577-0168-9, DOI: 10.1109/ICSensT.2011.6137070
GONÇALVES ROSANA F, CARREÑO NEFTALÍ L V, MÁRCIA TSUYAMA, ESCOTE KÍRIAN PIMENTA, LOPES ANTONINHO, VALENTINI EDSON R, LEITE, LONGO E: "FOTOLUMINESCÊNCIA E ADSORÇÃO DE CO 2 EM NANOPARTÍCULAS DE CaTiO 3 DOPADAS COM LANTÂNIO", QUÍMICA NOVA, vol. 27, no. 6, 27 August 2004 (2004-08-27), pages 862 - 865, XP055854361, ISSN: 1678-7064
O P SHRIVASTAVA: "Solid state synthesis and structural refinement of polycrystalline La x Ca1−x TiO3 ceramic powder", BULLETIN OF MATERIALS SCIENCE, vol. 27, no. 2, 30 April 2004 (2004-04-30), XP055147550, ISSN: 0250-4707
U. GUTH ; J. ZOSEL ; J. RIEDEL ; N. TRAN ; M. BERTHOLD ; C. VONAU ; U. SASUM ; P. SHUK ; M. PARAMASIVAM ; V. VASHOOK: "Novel electrode materials for electrochemical sensors", SENSING TECHNOLOGY (ICST), 2011 FIFTH INTERNATIONAL CONFERENCE ON, IEEE, 28 November 2011 (2011-11-28), pages 685 - 689, XP032099514, ISBN: 978-1-4577-0168-9, DOI: 10.1109/ICSensT.2011.6137070
GONÇALVES ROSANA F, CARREÑO NEFTALÍ L V, MÁRCIA TSUYAMA, ESCOTE KÍRIAN PIMENTA, LOPES ANTONINHO, VALENTINI EDSON R, LEITE, LONGO E: "FOTOLUMINESCÊNCIA E ADSORÇÃO DE CO 2 EM NANOPARTÍCULAS DE CaTiO 3 DOPADAS COM LANTÂNIO", QUÍMICA NOVA, vol. 27, no. 6, 27 August 2004 (2004-08-27), pages 862 - 865, XP055854361, ISSN: 1678-7064
O P SHRIVASTAVA: "Solid state synthesis and structural refinement of polycrystalline La x Ca1−x TiO3 ceramic powder", BULLETIN OF MATERIALS SCIENCE, vol. 27, no. 2, 30 April 2004 (2004-04-30), XP055147550, ISSN: 0250-4707
Attorney, Agent or Firm:
BEIJING GAOWO LAW FIRM (CN)
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