Synthesis of Solid Oxide Fuel Cell with Graded Structure from Aqueous Solution
水溶液合成梯度结构固体氧化物燃料电池
基本信息
- 批准号:11480118
- 负责人:
- 金额:$ 6.98万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (B).
- 财政年份:1999
- 资助国家:日本
- 起止时间:1999 至 2000
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
For the practical use of solid oxide fuel, the realization of lightweight and compact cell stack with large area and low electric resistance is necessary and the use of ceramic materials in thin film shape is important. Comparing with conventional methods for forming thin film, such as CVD, spattering and sol-gel method, synthesis of ceramic thin film from aqueous solution can form uniform thin film with large area and complicated shapes. This technique needs no heat treatment, which is injurious because of the possibility of deformation and crack of the thin film. It is low-cost process, because no expensive equipment is required. Using these characteristics of this technique, fuel cell with a graded structure can be made by gradually changing the composition of the solution. By making a fuel cell with graded structure, a coefficient of thermal expansion changes continuously and the fracture of the cell by thermal stress can be avoided. By adding boric acid, which can make stable comp … More lex with fluoride ion to metal-fluoro-complex solution, hydrolysis of the fluoro-complex proceeded. By using this reaction, zirconia and lanthanum-transition metal perovskite type oxide could be synthesized from aqueous solution. By synthesizing in a vacuum globe box, the influence of oxygen in air was eliminated and fine control of the material was conducted. By using LB films apparatus, the surface of substrates was finely controlled. The result of analyzing the mechanism made it clear that seed crystals play an important role in the synthesis from aqueous solution. By using this technique, LaMnO_3 particles could be deposited uniformly and in high density on an YSZ substrate at normal temperature and under normal pressure. It is supposed that partial dissolution of YSZ and deposition of LaMnO_3 proceeded simultaneously. This result suggests the possibility of manufacturing graded structure. A fuel cell with graded structure is promising solution for the fracture problem of the cell by thermal stress. The electrode is also expected remarkably high activity, because the surface of the LaMnO_3 particles has many irregularities. Less
为了实际使用固体氧化物燃料,必须实现具有大面积和低电阻的轻质和紧凑的细胞堆栈,并且使用薄膜形状的陶瓷材料使用很重要。与形成薄膜的常规方法(例如CVD,空间和溶胶 - 凝胶方法)相比,从水溶液中合成陶瓷薄膜可以形成具有较大面积和复杂形状的均匀薄膜。该技术不需要热处理,由于薄膜变形和裂纹的可能性,这是有害的。这是低成本的过程,因为不需要昂贵的设备。使用这些技术的这些特征,可以通过逐渐改变溶液的组成来制作具有分级结构的燃料电池。通过制作具有分级结构的燃料电池,可以避免对热膨胀变化的批评,并且可以避免通过热应力的细胞断裂。通过添加硼酸,这可以使稳定的富含曲线与金属氟化物复合溶液一起使用稳定的材料,从而进行了氟复合物的水解。通过使用该反应,可以从水溶液中合成氧化锆和灯笼 - 转换金属钙钛矿型氧化物。通过在真空盒中合成,消除了氧气在空气中的影响,并对材料进行了精细的控制。通过使用LB膜设备,对底物的表面进行了精心控制。分析该机制的结果表明,种子晶体在水溶液中的合成中起着重要作用。通过使用此技术,可以在正常温度和正常压力下在YSZ底物上均匀地沉积LAMNO_3颗粒。预计YSZ的部分溶解和LAMNO_3的沉积很简单。该结果表明制造分级结构的可能性。具有分级结构的燃料电池是通过热应力解决细胞断裂问题的有希望的解决方案。由于LAMNO_3颗粒的表面具有许多不规则性,因此也预计电极的活性也非常高。较少的
项目成果
期刊论文数量(26)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
T.YAO: "Synthesis of Functional Ceramic Metal Oxides from Aqueous Solutions"Advances in Science and Technology. 15. 491-498 (1999)
T.YAO:“水溶液合成功能陶瓷金属氧化物”科技进展。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
八尾健: "『燃料電池技術とその応用』第7章、第1節「原理と電極反応」"株式会社テクノシステム. 11 (2000)
姚肯:“‘燃料电池技术及其应用’第7章第1节‘原理和电极反应’”Techno System Co., Ltd. 11 (2000)
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
T.YAO: "Fuel cell technology and its application : 7.1"Tekunosisutemu. 11 (2000)
T.YAO:“燃料电池技术及其应用:7.1”Tekunosisutemu。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
Takeshi YAO: ""Synthesis of (La, Sr) MeO_3 (Me=Cr, Mn, Fe, Co) Solid Solutions from Aqueous Solutions""Journal of Solid State Ionics. (be in print). (2000)
姚武史:“从水溶液合成(La,Sr)MeO_3(Me=Cr,Mn,Fe,Co)固溶体”,《固态离子学杂志》。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
T.YAO: "Direct Synthesis from Aqueous Solution of Steam Electrolysis Materials"HYDROGEN ENERGY PROGRESS XIII. 455-460 (2000)
T.YAO:“水蒸气电解材料的水溶液直接合成”氢能源进展XIII。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
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{{ truncateString('YAO Takeshi', 18)}}的其他基金
Relaxation Analysis of Electrode Materials for Secondary Lithium Ion Battery
二次锂离子电池电极材料的弛豫分析
- 批准号:
26289376 - 财政年份:2014
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$ 6.98万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Relaxation Analysis of Electrode Material
电极材料的弛豫分析
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24656581 - 财政年份:2012
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$ 6.98万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
Development of high power density electrode system on the basis ofconstruction of ionic conduction channel of hierarchic structure
基于多级结构离子传导通道构建的高功率密度电极系统的研制
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21360479 - 财政年份:2009
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Grant-in-Aid for Scientific Research (B)
Construction of ion conduction channel of hierarchic structure and its application to high power battery materials
多级结构离子传导通道的构建及其在高动力电池材料中的应用
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19360438 - 财政年份:2007
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Hierarchical tunnel design for rapid transport of ion in solid state materials
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17360464 - 财政年份:2005
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STRUCTURAL DESIGN OF HIGHLY ORIENTED LAYERED-MATERIAL FOR LITHIUM ION SECONDARY BATTERIES
锂离子二次电池高取向层状材料的结构设计
- 批准号:
15360510 - 财政年份:2003
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Grant-in-Aid for Scientific Research (B)
Development of Novel Vanadium Oxide Compound for Lithium Ion Secondary Battery
锂离子二次电池用新型钒氧化物的研制
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13480137 - 财政年份:2001
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$ 6.98万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Development of Solid Oxide Fuel Cell by Using Synthesis from Aqueous Solutions
利用水溶液合成技术开发固体氧化物燃料电池
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09355020 - 财政年份:1997
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$ 6.98万 - 项目类别:
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Analysis of Electrochemical Lithium Topochemical Reactions into Superstructure Spinel Oxides
超结构尖晶石氧化物的电化学锂拓扑化学反应分析
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08455396 - 财政年份:1996
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Valence and Coordination State Analysis for Transition Metal Ions Mixed Conductive Perovskite Oxides
过渡金属离子混合导电钙钛矿氧化物的价态和配位态分析
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06650779 - 财政年份:1994
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