JPH0214289B2 - - Google Patents
Info
- Publication number
- JPH0214289B2 JPH0214289B2 JP17632282A JP17632282A JPH0214289B2 JP H0214289 B2 JPH0214289 B2 JP H0214289B2 JP 17632282 A JP17632282 A JP 17632282A JP 17632282 A JP17632282 A JP 17632282A JP H0214289 B2 JPH0214289 B2 JP H0214289B2
- Authority
- JP
- Japan
- Prior art keywords
- zno
- present
- zinc
- lithium
- compound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- IKSHCPCLWHTVMS-UHFFFAOYSA-N [O-][O-].[Zn+2].[Li+].[Li+].[O-][O-] Chemical compound [O-][O-].[Zn+2].[Li+].[Li+].[O-][O-] IKSHCPCLWHTVMS-UHFFFAOYSA-N 0.000 claims description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 38
- 239000011787 zinc oxide Substances 0.000 description 19
- 150000001875 compounds Chemical class 0.000 description 8
- 239000000843 powder Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000011701 zinc Substances 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- 229910018068 Li 2 O Inorganic materials 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 description 1
- 229910052808 lithium carbonate Inorganic materials 0.000 description 1
- 150000002642 lithium compounds Chemical class 0.000 description 1
- FUJCRWPEOMXPAD-UHFFFAOYSA-N lithium oxide Chemical compound [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 description 1
- 229910001947 lithium oxide Inorganic materials 0.000 description 1
- UOURRHZRLGCVDA-UHFFFAOYSA-D pentazinc;dicarbonate;hexahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Zn+2].[Zn+2].[Zn+2].[Zn+2].[Zn+2].[O-]C([O-])=O.[O-]C([O-])=O UOURRHZRLGCVDA-UHFFFAOYSA-D 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 150000003752 zinc compounds Chemical class 0.000 description 1
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
Description
本発明はLi2ZnO2で表わされる二酸化亜鉛二リ
チウムなる新規物質に関する。
現在、リチウム、亜鉛および酸素より構成され
る化合物はLi4ZnO3のみが確認されているにすぎ
ない（ASTM powder diffraction file、Joint
Committe on Powder Diffraction Standards、
Swarthmore、U.S.A.Card26−1210）。
本発明者らはリチウム、亜鉛および酸素より構
成される化合物を研究し、新規な化合物Li2ZnO2
を見出し本発明に到達したものであり、本発明は
この新規物質を提供することを目的とするもので
ある。
以下に本発明物質について詳細に説明する。
本発明の化合物はリチウム、亜鉛および酸素よ
り構成される固体物質であり、その粉末は淡い黄
色味を帯びた白色を呈する。
本発明の化合物Li2ZnO2の主要Ｘ線回折パター
ンとその強度は第１図及び表１のとおりであり、
本発明の化合物Li2ZnO2は格子定数ａ＝8.12Åお
よびｃ＝6.73Åを有する六方晶系の構造を持つ結
晶である。
The present invention relates to a new material, dilithium zinc dioxide, represented by Li 2 ZnO 2 . Currently, only Li 4 ZnO 3 has been confirmed as a compound composed of lithium, zinc, and oxygen (ASTM powder diffraction file, Joint
Committe on Powder Diffraction Standards,
Swarthmore, USACard26−1210). The present inventors studied compounds composed of lithium, zinc and oxygen, and created a new compound Li 2 ZnO 2
This discovery led to the present invention, and the object of the present invention is to provide this new substance. The substance of the present invention will be explained in detail below. The compound of the present invention is a solid substance composed of lithium, zinc and oxygen, and its powder exhibits a pale yellowish white color. The main X-ray diffraction pattern and its intensity of the compound Li 2 ZnO 2 of the present invention are shown in FIG. 1 and Table 1,
The compound Li 2 ZnO 2 of the present invention is a crystal having a hexagonal structure with lattice constants a=8.12 Å and c=6.73 Å.
【表】
本発明による化合物Li2ZnO2は化学分析の結
果、酸化リチウムと酸化亜鉛のモル比がLi2O：
ZnO＝１：１の組成であり、リチウムと亜鉛の原
子比がLi：Zn＝２：１になつていることが確認
された。
JISZ−8807−76に従がい、比重ビンを用いて
本発明のLi2ZnO2の真比重を測定した結果、測定
温度20℃において3.70〜3.74の値であつた。
次に本発明のLi2ZnO2の製造例および用途例に
より具体的に説明する。
本発明の化合物Li2ZnO2の原料としてはLiO2ま
たは熱分解によりLiO2を生成するLiCO3、LiOH
などのリチウム化合物と亜鉛華または熱分解して
ZnOを生成する亜鉛化合物を用いることができ
る。
製造例
純度99.99％の炭酸リチウムと純度99.99％の塩
基性炭酸亜鉛とをLi2OとZnOのモル比に換算し
て１：１の割合で混合し、この混合物をメノウボ
ール入りポツトミルにて湿式混合粉砕した。得ら
れた混合物を乾燥後、円筒状に成形し、白金ルツ
ボ中10-2mmHgの減圧に保ちながら、あるいは、
H2又は不活性ガス雰囲気に保ちながら、電気炉
を用いて500℃で２時間、その後650℃にて６時
間、十分に仮焼した後、850℃で24時間焼成を行
なつた。その後減圧を保ちながら、あるいは、
H2又は不活性ガス雰囲気に保ちながら常温まで
自然放冷したものを粉砕し、淡い黄色味を帯びた
白色の粉末を得た。この粉末の真比重は3.71であ
り、化学分析の結果、Li2O：ZnOのモル比は
１：１、Ｘ線回折パターンの主要ピークは表１に
示したLi2ZnO2であつた。そのＸ線回折パターン
を第１図に示す。
用途例
本発明のLi2ZnO2を成形後、750℃で焼成した
焼結体は相対湿度の変化に伴ない、その電気抵抗
が変化し、感湿抵抗体としての性質を示した。感
湿抵抗体として測定した相対湿度と電気抵抗との
関係を第２図に示す（測定温度20℃）。
これで見るとその関係は指数函数的であり、こ
れによつて本発明のLi2ZnO2は感湿抵抗体として
充分使用し得るものであることが判る。[Table] As a result of chemical analysis, the compound Li 2 ZnO 2 according to the present invention has a molar ratio of lithium oxide and zinc oxide of Li 2 O:
It was confirmed that the composition was ZnO = 1:1, and the atomic ratio of lithium and zinc was Li:Zn = 2:1. The true specific gravity of Li 2 ZnO 2 of the present invention was measured using a pycnometer according to JISZ-8807-76, and the result was a value of 3.70 to 3.74 at a measurement temperature of 20°C. Next, the present invention will be specifically explained using manufacturing examples and usage examples of Li 2 ZnO 2 . As a raw material for the compound Li 2 ZnO 2 of the present invention, LiO 2 or LiCO 3 or LiOH that generates LiO 2 by thermal decomposition is used.
Lithium compounds such as zinc oxide or thermal decomposition
Zinc compounds that produce ZnO can be used. Production example Lithium carbonate with a purity of 99.99% and basic zinc carbonate with a purity of 99.99% are mixed at a ratio of 1:1 in terms of the molar ratio of Li 2 O and ZnO, and this mixture is wet-processed in a pot mill containing an agate ball. Mixed and crushed. After drying the resulting mixture, it is formed into a cylindrical shape and placed in a platinum crucible at a reduced pressure of 10 -2 mmHg, or
While maintaining an H 2 or inert gas atmosphere, the material was sufficiently calcined using an electric furnace at 500°C for 2 hours, then at 650°C for 6 hours, and then fired at 850°C for 24 hours. Then, while maintaining reduced pressure, or
The mixture was allowed to cool naturally to room temperature while being kept in an H 2 or inert gas atmosphere, and then ground to obtain a pale yellowish white powder. The true specific gravity of this powder was 3.71, and as a result of chemical analysis, the molar ratio of Li 2 O:ZnO was 1:1, and the main peak of the X-ray diffraction pattern was Li 2 ZnO 2 shown in Table 1. The X-ray diffraction pattern is shown in FIG. Application Example A sintered body made of the Li 2 ZnO 2 of the present invention after being molded and fired at 750°C changed its electrical resistance as the relative humidity changed, and exhibited properties as a humidity-sensitive resistor. Figure 2 shows the relationship between relative humidity and electrical resistance measured as a humidity-sensitive resistor (measurement temperature 20°C). It can be seen from this that the relationship is exponential, and from this it can be seen that the Li 2 ZnO 2 of the present invention can be satisfactorily used as a moisture-sensitive resistor.
第１図は本発明のLi2ZnO2のＸ線回折図であ
り、第２図は相対湿度と電気抵抗との関係を示す
グラフである。
FIG. 1 is an X-ray diffraction diagram of Li 2 ZnO 2 of the present invention, and FIG. 2 is a graph showing the relationship between relative humidity and electrical resistance.
Claims (1)
ム。1. Dilithium zinc dioxide, expressed as Li 2 ZnO 2 .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17632282A JPS5969427A (en) | 1982-10-08 | 1982-10-08 | Dilithium zinc dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17632282A JPS5969427A (en) | 1982-10-08 | 1982-10-08 | Dilithium zinc dioxide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5969427A JPS5969427A (en) | 1984-04-19 |
| JPH0214289B2 true JPH0214289B2 (en) | 1990-04-06 |
Family
ID=16011551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17632282A Granted JPS5969427A (en) | 1982-10-08 | 1982-10-08 | Dilithium zinc dioxide |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5969427A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104478429B (en) * | 2014-12-27 | 2016-08-24 | 桂林理工大学 | Temperature-stable ultralow dielectric microwave dielectric ceramic Li2znO2and preparation method thereof |
| CN104609851A (en) * | 2015-02-02 | 2015-05-13 | 桂林理工大学 | Temperature-stable ultra-low dielectric constant microwave dielectric ceramic Li2Zn4O5 and preparation method thereof |
-
1982
- 1982-10-08 JP JP17632282A patent/JPS5969427A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5969427A (en) | 1984-04-19 |
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