JP4257419B2 - n型熱電変換特性を有する複合酸化物 - Google Patents
n型熱電変換特性を有する複合酸化物 Download PDFInfo
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- JP4257419B2 JP4257419B2 JP2003377708A JP2003377708A JP4257419B2 JP 4257419 B2 JP4257419 B2 JP 4257419B2 JP 2003377708 A JP2003377708 A JP 2003377708A JP 2003377708 A JP2003377708 A JP 2003377708A JP 4257419 B2 JP4257419 B2 JP 4257419B2
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- Prior art keywords
- composite oxide
- thermoelectric conversion
- type thermoelectric
- temperature
- conversion material
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- 239000002131 composite material Substances 0.000 title claims description 55
- 238000006243 chemical reaction Methods 0.000 title claims description 40
- 239000000463 material Substances 0.000 claims description 34
- 238000010248 power generation Methods 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 10
- 229910052779 Neodymium Inorganic materials 0.000 claims description 5
- 229910052797 bismuth Inorganic materials 0.000 claims description 5
- 229910052804 chromium Inorganic materials 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 229910052748 manganese Inorganic materials 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 229910052720 vanadium Inorganic materials 0.000 claims description 5
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 13
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 13
- 238000010304 firing Methods 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 10
- 239000002994 raw material Substances 0.000 description 10
- 229910052760 oxygen Inorganic materials 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 241000877463 Lanio Species 0.000 description 6
- 239000013078 crystal Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 238000002441 X-ray diffraction Methods 0.000 description 4
- -1 alkoxide compound Chemical class 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000003746 solid phase reaction Methods 0.000 description 4
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910000480 nickel oxide Inorganic materials 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 231100000053 low toxicity Toxicity 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229910018871 CoO 2 Inorganic materials 0.000 description 1
- 230000005678 Seebeck effect Effects 0.000 description 1
- 238000007507 annealing of glass Methods 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- NPAJGHOZGYPSTK-UHFFFAOYSA-N ethanolate;lanthanum(3+) Chemical compound [La+3].CC[O-].CC[O-].CC[O-] NPAJGHOZGYPSTK-UHFFFAOYSA-N 0.000 description 1
- RPTHSTHUXCCDTE-UHFFFAOYSA-N ethanolate;nickel(2+) Chemical compound CCO[Ni]OCC RPTHSTHUXCCDTE-UHFFFAOYSA-N 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000007716 flux method Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- NZPIUJUFIFZSPW-UHFFFAOYSA-H lanthanum carbonate Chemical compound [La+3].[La+3].[O-]C([O-])=O.[O-]C([O-])=O.[O-]C([O-])=O NZPIUJUFIFZSPW-UHFFFAOYSA-H 0.000 description 1
- RCFZUDZONKPRJX-UHFFFAOYSA-N lanthanum(3+) methanolate Chemical compound [La+3].[O-]C.[O-]C.[O-]C RCFZUDZONKPRJX-UHFFFAOYSA-N 0.000 description 1
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 1
- FYDKNKUEBJQCCN-UHFFFAOYSA-N lanthanum(3+);trinitrate Chemical compound [La+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O FYDKNKUEBJQCCN-UHFFFAOYSA-N 0.000 description 1
- ICAKDTKJOYSXGC-UHFFFAOYSA-K lanthanum(iii) chloride Chemical compound Cl[La](Cl)Cl ICAKDTKJOYSXGC-UHFFFAOYSA-K 0.000 description 1
- CMGJQFHWVMDJKK-UHFFFAOYSA-N lanthanum;trihydrate Chemical compound O.O.O.[La] CMGJQFHWVMDJKK-UHFFFAOYSA-N 0.000 description 1
- 238000000608 laser ablation Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- VWHIRQNZEXUKAZ-UHFFFAOYSA-N methanolate;nickel(2+) Chemical compound CO[Ni]OC VWHIRQNZEXUKAZ-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 description 1
- TVPFVDUBVQKLJR-UHFFFAOYSA-N nickel(2+);propan-1-olate Chemical compound CCCO[Ni]OCCC TVPFVDUBVQKLJR-UHFFFAOYSA-N 0.000 description 1
- AIBQNUOBCRIENU-UHFFFAOYSA-N nickel;dihydrate Chemical compound O.O.[Ni] AIBQNUOBCRIENU-UHFFFAOYSA-N 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
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Description
CoO2系層状酸化物が報告されている(例えば、下記特許文献1〜5等参照)。しかし
ながら、これらの酸化物は、全てp型の熱電特性を有するものであり、ゼーベック係数が正の値を示す材料、即ち、高温側に位置する部分が低電位部となる材料である。
た酸化物が、n型熱電変換性能を有することが報告されている(例えば、下記特許文献6等参照)。しかしながら、熱電発電の実用化のためには、より優れた熱電変換効率を有するn型熱電変換材料の開発が望まれている。
1. 組成式:LavM1 wNixM2 yOz
(式中、M1は、Na、K、Ca、Bi及びNdからなる群から選ばれた少なくとも一種の元素であり、M2は、Ti、V、Cr、Mn、Fe、Co及びCuからなる群から選ばれた少なくとも一種の元素である。式中の添字は、それぞれ、0.5≦v≦1.2、0.
1≦w≦0.5、0.5≦x≦1.2、0.01≦y≦0.5、2.8≦z≦3.2を満たす数である)で表される組成を有し、100℃以上の温度で負のゼーベック係数を有する複合酸化物。
2. 組成式:LavM1 wNixM2 yOz
(式中、M1は、Na、K、Ca、Bi及びNdからなる群から選ばれた少なくとも一種の元素であり、M2は、Ti、V、Cr、Mn、Fe、Co及びCuからなる群から選ばれた少なくとも一種の元素である。式中の添字は、それぞれ、0.5≦v≦1.2、0.1≦w≦0.5、0.5≦x≦1.2、0.01≦y≦0.5、2.8≦z≦3.2を満たす数である)で表される組成を有し、100℃以上の温度で10mΩcm以下の電気抵抗率を有する複合酸化物。
3. 上記項1又は2に記載の複合酸化物からなるn型熱電変換材料。
4. 上記項3に記載のn型熱電変換材料を含む熱電発電モジュール。
一部がM1によって置換され、Niサイトの一部はM2によって置換されたものである。
塩化ランタン(LaCl3)、水酸化ランタン(La(OH)3)、アルコシキド化合物(トリメトキシランタン(La(OCH3)3)、トリエトキシランタン(La(OC2H5)3)
、トリプロポキシランタン(La(OC3H7)3等)のアルコキシド化合物を使用でき、
Ni源としては、酸化ニッケル(NiO)、硝酸ニッケル(Ni(NO3)2)、塩化ニッケル(NiCl2)、水酸化ニッケル(Ni(OH)2)、アルコキシド化合物(ジメトキシニッケル(Ni(OCH3)2)、ジエトキシニッケル(Ni(OC2H5)2)、ジプロ
ポキシニッケル(Ni(OC3H7)2)等)等を使用できる。その他の元素についても同
様に酸化物、塩化物、炭酸塩、硝酸塩、水酸化物、アルコキシド化合物等を用いることができる。また本発明の複合酸化物の構成元素を二種以上含む化合物を使用してもよい。
例えば、アルミナるつぼ中でこの水溶液を加熱、撹拌して水を蒸発させた後、残渣を空気中で600〜800℃程度で10時間程度加熱して仮焼粉末とした後、上記した方法と同様にして焼成すればよい。
La源として硝酸ランタン(La2(NO3)3・6H2O)、Ni源として硝酸ニッケル(Ni (NO3)2・6H2O)、Cu源として硝酸銅(Cu(NO3)2・3H2O)を用い、La:Ni:Cu(元素比)=1:0.8:0.2となる割合でこれらの原料を蒸留水に完全に溶解し、アルミナるつぼ中で十分に撹拌混合した後、水分を蒸発させて乾固した。次いで、電気炉を用いて、析出物を空気中で600℃で10時間焼成して、硝酸塩を分解した。その後、焼成物を粉砕し、加圧成形後、300ml/分の酸素気流中で1000℃で20時間加熱して複合酸化物を合成した。
X線回折パターンを有するものであった。
ク係数と比較例の複合酸化物のゼーベック係数とを比較した場合に、実施例1の酸化物に
おいて顕著なゼーベック係数の増加は認められなかったが、後述する実施例では、置換元素の種類によっては明らかなゼーベック係数の増加が認められた。なお、以下の全ての実施例においても、ゼーベック係数は、100℃以上において、負の値であった。
の電気抵抗率と比較例の複合酸化物の電気抵抗率とを比較した場合に、実施例1の複合酸化物において明らかな電気抵抗率の低下が認められた。
示すグラフを図6に示す。図6から明らかなように、実施例1の複合酸化物は、比較例の複合酸化物(LaNiO3)と比べて高い出力因子を有するものであった。後述する全て
の実施例の複合酸化物についても、比較例の複合酸化物(LaNiO3)と比べて高い出
力因子を示した。
下記表1〜表19に示す元素比となるように原料物質を溶解した水溶液を用いて、実施例1と同様にして複合酸化物を作製した。
Claims (4)
- 組成式:LavM1 wNixM2 yOz
(式中、M1は、Na、K、Ca、Bi及びNdからなる群から選ばれた少なくとも一種の元素であり、M2は、Ti、V、Cr、Mn、Fe、Co及びCuからなる群から選ばれた少なくとも一種の元素である。式中の添字は、それぞれ、0.5≦v≦1.2、0.1≦w≦0.5、0.5≦x≦1.2、0.01≦y≦0.5、2.8≦z≦3.2を満たす数である)で表される組成を有し、100℃以上の温度で負のゼーベック係数を有する複合酸化物。 - 組成式:LavM1 wNixM2 yOz
(式中、M1は、Na、K、Ca、Bi及びNdからなる群から選ばれた少なくとも一種の元素であり、M2は、Ti、V、Cr、Mn、Fe、Co及びCuからなる群から選ばれた少なくとも一種の元素である。式中の添字は、それぞれ、0.5≦v≦1.2、0.1≦w≦0.5、0.5≦x≦1.2、0.01≦y≦0.5、2.8≦z≦3.2を満たす数である)で表される組成を有し、100℃以上の温度で10mΩcm以下の電気抵抗率を有する複合酸化物。 - 請求項1又は2に記載の複合酸化物からなるn型熱電変換材料。
- 請求項3に記載のn型熱電変換材料を含む熱電発電モジュール。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003377708A JP4257419B2 (ja) | 2003-11-07 | 2003-11-07 | n型熱電変換特性を有する複合酸化物 |
US10/577,916 US20070157960A1 (en) | 2003-11-07 | 2004-10-27 | Composite oxide having n-type thermoelectric conversion property |
PCT/JP2004/015921 WO2005044730A1 (ja) | 2003-11-07 | 2004-10-27 | n型熱電変換特性を有する複合酸化物 |
DE112004002101T DE112004002101T5 (de) | 2003-11-07 | 2004-10-27 | Kompositoxid mit thermoelektrischen Umwandlungseigenschaften vom n-Typ |
GB0816770A GB2449811B (en) | 2003-11-07 | 2004-10-27 | Composite oxide having n-type thermoelectric conversion property |
GB0608631A GB2423515B (en) | 2003-11-07 | 2004-10-27 | Composite oxide having n-type thermoelectric conversion property |
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JP2003377708A JP4257419B2 (ja) | 2003-11-07 | 2003-11-07 | n型熱電変換特性を有する複合酸化物 |
Publications (2)
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JP2005139032A JP2005139032A (ja) | 2005-06-02 |
JP4257419B2 true JP4257419B2 (ja) | 2009-04-22 |
Family
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JP2003377708A Expired - Lifetime JP4257419B2 (ja) | 2003-11-07 | 2003-11-07 | n型熱電変換特性を有する複合酸化物 |
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US (1) | US20070157960A1 (ja) |
JP (1) | JP4257419B2 (ja) |
DE (1) | DE112004002101T5 (ja) |
GB (2) | GB2449811B (ja) |
WO (1) | WO2005044730A1 (ja) |
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KR20070037583A (ko) * | 2004-07-01 | 2007-04-05 | 아르재 가부시키가이샤 | 열전 변환 모듈 |
FR2930075B1 (fr) * | 2008-04-14 | 2011-03-18 | Commissariat Energie Atomique | Titanates de structure perovskite ou derivee et ses applications |
CN102339946B (zh) * | 2010-07-20 | 2014-06-18 | 中国科学院上海硅酸盐研究所 | 一种高性能热电复合材料及其制备方法 |
TWI473122B (zh) * | 2011-01-21 | 2015-02-11 | Murata Manufacturing Co | Semiconductor ceramics and semiconductor ceramic components |
KR101303581B1 (ko) | 2012-02-23 | 2013-09-09 | 세종대학교산학협력단 | 산화물 열전재료의 소결기술 |
CN105823569B (zh) * | 2016-04-27 | 2018-10-30 | 西安交通大学 | 一种掺杂铬酸镧薄膜型热电偶及其制备方法 |
CN106498435B (zh) * | 2016-11-24 | 2019-03-05 | 华中科技大学 | 一种固体氧化物电解池阴极材料及其制备方法 |
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JPH0825748B2 (ja) * | 1987-09-21 | 1996-03-13 | 大日精化工業株式会社 | ペロブスカイト型微粉体の製造方法 |
JP2880044B2 (ja) * | 1993-05-26 | 1999-04-05 | 日立金属株式会社 | 磁気ヘッド用非磁性基板材料 |
JP3414657B2 (ja) * | 1997-12-09 | 2003-06-09 | 日本電信電話株式会社 | ニッケル鉄系ペロブスカイト型固体燃料電池用空気極材料 |
JP3968418B2 (ja) * | 2002-03-22 | 2007-08-29 | 独立行政法人産業技術総合研究所 | n型熱電特性を有する複合酸化物 |
-
2003
- 2003-11-07 JP JP2003377708A patent/JP4257419B2/ja not_active Expired - Lifetime
-
2004
- 2004-10-27 GB GB0816770A patent/GB2449811B/en not_active Expired - Fee Related
- 2004-10-27 US US10/577,916 patent/US20070157960A1/en not_active Abandoned
- 2004-10-27 WO PCT/JP2004/015921 patent/WO2005044730A1/ja active Application Filing
- 2004-10-27 DE DE112004002101T patent/DE112004002101T5/de not_active Withdrawn
- 2004-10-27 GB GB0608631A patent/GB2423515B/en not_active Expired - Fee Related
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GB2423515A (en) | 2006-08-30 |
DE112004002101T5 (de) | 2006-09-21 |
GB0608631D0 (en) | 2006-06-14 |
GB2423515B (en) | 2008-11-12 |
GB2449811A (en) | 2008-12-03 |
WO2005044730A1 (ja) | 2005-05-19 |
GB2449811B (en) | 2009-01-14 |
US20070157960A1 (en) | 2007-07-12 |
GB0816770D0 (en) | 2008-10-22 |
JP2005139032A (ja) | 2005-06-02 |
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