Development of noble metal nano-composite electrode for gas sensors
气体传感器用贵金属纳米复合电极的研制
基本信息
- 批准号:13555184
- 负责人:
- 金额:$ 5.12万
- 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:2001
- 资助国家:日本
- 起止时间:2001 至 2003
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Noble metal(Ir or Ru) nano-composite films were synthesized by chemical vapor deposition using beta-diketonato complexes as precursors, and their microstructures and electrode properties for gas sensors were studied. Ir-YSZ nano-composite electrodes consisted of amorphous YSZ and Ir particles of 5-10 nm in diameter. The interfacial conductivity for the Ir-YSZ electrodes was almost 1000 times higher than that of sputtered-Pt electrodes due to large contact area between YSZ and Ir in nano-composite electrodes and high catalytic activity of Ir nano-particles. The electro-motive-force values of the oxygen concentration cell constructed from the Ir-YSZ electrodes and YSZ electrolyte showed the Nernstian theoretical values and the response time was 10-20s at 650℃. Ir-C and Ru-C nano-composite films containing about 50 vol% of carbon were prepared by MOCVD, and their microstructures and electrode properties were investigated. Ir or Ru particles of 5-20 nm in diameter were dispersed in amorphous C matrix. The AC conductivities associating to the interface charge transfer between 1r-C or Ru-C composite electrode and YSZ electrolyte were 100-1000 times higher than that of Pt electrodes. The emf values of the oxygen gas concentration cell constructed from the nano-composite electrodes and YSZ electrolyte showed the Nernstian theoretical values at low temperatures around 500 K. The response time of the concentration cell was 110 s at 550 K for Ir-C and 900 s at 500 K for Ru-C nano-composite electrodes.
以β-二酮配合物为前驱体,采用化学气相沉积法制备了贵金属(Ir或Ru)纳米复合薄膜,并对其微观结构和气敏电极性能进行了研究。Ir-YSZ纳米复合电极由直径为5~10 nm的非晶态YSZ和Ir颗粒组成。由于YSZ与Ir在纳米复合电极中的接触面积较大,且Ir纳米粒子具有较高的催化活性,Ir-YSZ电极的界面电导率几乎是溅射铂电极的1000倍。由Ir-YSZ电极和YSZ电解液组成的氧浓差电池的电动势符合能斯特理论值,在650℃下的响应时间为10-20s。采用MOCVD法制备了碳含量约为50%的Ir-C和Ru-C纳米复合薄膜,并对其微观结构和电极性能进行了研究。直径为5~20 nm的Ir或Ru颗粒分散在非晶态C基质中。1R-C或Ru-C复合电极与YSZ电解液之间界面电荷转移的交流电导比铂电极的交流电导高100-1000倍。由纳米复合电极和YSZ电解液组成的氧气浓缩池的电动势在500K附近的低温下符合能斯特理论值,Ir-C在550K时的响应时间为110 S,Ru-C纳米复合电极在500K时的响应时间为900 S。
项目成果
期刊论文数量(24)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Preparation of RuO_2-YSZ nano-composite films by MOCVD
MOCVD法制备RuO_2-YSZ纳米复合薄膜
- DOI:
- 发表时间:2004
- 期刊:
- 影响因子:0
- 作者:H.Yamamoto;T.Kimura
- 通讯作者:T.Kimura
B.-P.Zhang: "Optical properties of Au/SiO_2 nano-composite films prepared by induction-coil-coupled plasma suuttering"Mater. Trans.. 44・2. 215-219 (2003)
B.-P.Zhang:“感应线圈耦合等离子体烧结制备的Au/SiO_2纳米复合薄膜的光学性能”,Trans. 44・219 (2003)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
T.Goto, T.Ono, T.Hirai: "Electrochemical Properties of Iridium Carbon Nano Composite Films Prepared by MOCVD"Scripta Mater.. 44. 1187-1190 (2001)
T.Goto、T.Ono、T.Hirai:“MOCVD 制备的铱碳纳米复合薄膜的电化学性能”Scripta Mater.. 44. 1187-1190 (2001)
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
Electrical and optical properties of IrO_2 thin films prepared by laser-ablation
激光烧蚀制备IrO_2薄膜的电学和光学性能
- DOI:
- 发表时间:2004
- 期刊:
- 影响因子:0
- 作者:Y.Liu
- 通讯作者:Y.Liu
T.Kimura: "Preparation of RuO_2-YSZ nano-somposite films by MOCVD"Surf.Coat.and Tech.. 167・2-3. 240-245 (2003)
T.Kimura:“通过 MOCVD 制备 RuO_2-YSZ 纳米复合薄膜”Surf.Coat.and Tech.. 167・2-3 (2003)。
- DOI:
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- 影响因子:0
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GOTO Takashi其他文献
金属ナノ粒子の局在表面プラズモン共鳴を用いた高効率光エネルギー変換デバイスを目指して
利用金属纳米颗粒的局域表面等离子体共振来实现高效光能转换装置
- DOI:
- 发表时间:
2018 - 期刊:
- 影响因子:0
- 作者:
KATSUI Hirokazu;GOTO Takashi;髙橋幸奈 - 通讯作者:
髙橋幸奈
Synthesis of Functional Ceramics and Coatings on Powders by CVD Techniques
CVD 技术合成功能陶瓷和粉末涂层
- DOI:
10.2207/jjws.87.97 - 发表时间:
2018 - 期刊:
- 影响因子:0
- 作者:
KATSUI Hirokazu;GOTO Takashi - 通讯作者:
GOTO Takashi
Coatings on ceramic powders by rotary chemical vapor deposition and sintering of the coated powders
通过旋转化学气相沉积和烧结涂覆粉末在陶瓷粉末上形成涂层
- DOI:
10.2109/jcersj2.17279 - 发表时间:
2018 - 期刊:
- 影响因子:1.1
- 作者:
KATSUI Hirokazu;GOTO Takashi - 通讯作者:
GOTO Takashi
GOTO Takashi的其他文献
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{{ truncateString('GOTO Takashi', 18)}}的其他基金
Understanding of phase separation mechanism of transition metal-base carbide during spark plasma sintering and thermal annealing and their nano-structure control
过渡金属基碳化物在放电等离子烧结和热退火过程中的相分离机制及其纳米结构控制的理解
- 批准号:
16H04211 - 财政年份:2016
- 资助金额:
$ 5.12万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Development of nano-structure controlled catalyst by laser assisted and rotary CVD
激光辅助旋转CVD纳米结构控制催化剂的开发
- 批准号:
25289223 - 财政年份:2013
- 资助金额:
$ 5.12万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
High-speed epitaxial growth of cubic SiC film by laser CVD
激光CVD高速外延生长立方SiC薄膜
- 批准号:
25630273 - 财政年份:2013
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$ 5.12万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
The effect of enlarged characters on reading accuracy and fluency in Japanese children with developmental dyslexia
放大字符对日本发展性阅读障碍儿童阅读准确性和流畅性的影响
- 批准号:
24730766 - 财政年份:2012
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$ 5.12万 - 项目类别:
Grant-in-Aid for Young Scientists (B)
The effect of coloured overlays on reading speed in Japanese children with developmental dyslexia
彩色覆盖对患有发育性阅读障碍的日本儿童阅读速度的影响
- 批准号:
22830071 - 财政年份:2010
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$ 5.12万 - 项目类别:
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Fabrication of nano-porous materials by laser-enhanced mesoplasma CVD
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22246082 - 财政年份:2010
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$ 5.12万 - 项目类别:
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From Human Services Job Contents Text Data to ICF Coding Program Development
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22530573 - 财政年份:2010
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$ 5.12万 - 项目类别:
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Research and Analysis on Expert Knowledge of Human Services with Narrative Qualitative Data
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- 批准号:
19530467 - 财政年份:2007
- 资助金额:
$ 5.12万 - 项目类别:
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High-speed preparation of biocompatible ceramic coatings by laser CVD
激光CVD高速制备生物相容性陶瓷涂层
- 批准号:
18360310 - 财政年份:2006
- 资助金额:
$ 5.12万 - 项目类别:
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Application of boron carbide-based composite ceramics to thermoelectric conversion materials
碳化硼基复合陶瓷在热电转换材料中的应用
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09450255 - 财政年份:1997
- 资助金额:
$ 5.12万 - 项目类别:
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