CAREER: Electrochemical Ceramics - Understanding the Gap between Localized and Collective Viewpoints of Electronic Structure

职业:电化学陶瓷 - 了解电子结构的局部观点和集体观点之间的差距

基本信息

  • 批准号:
    0094253
  • 负责人:
  • 金额:
    $ 31.24万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    2001
  • 资助国家:
    美国
  • 起止时间:
    2001-09-01 至 2002-02-28
  • 项目状态:
    已结题

项目摘要

Electrochemical ceramics encompass a variety of present and emerging technologies, including gas sensors, fuel cells, gas-separation membranes, and membrane reactors. Of critical importance to modeling the properties of electrochemical ceramics, and developing new materials with improved performance, is a strong understanding of electronic structure. Since most electrochemical ceramics possess complex intermediate-length scale order, their properties often defy explanation when viewed from traditional paradigms invoking localized or collective viewpoints of electronic structure. In order to gain a more complete understanding of electronic structure in electrochemical ceramics, we propose to measure the populations of localized and delocalized electrons in transition metal perovskites having general composition LaSrCoFe oxides (LSCF) using a novel high-sensitivity Faraday balance. These measurements will be used to interpret parallel studies of electrochemical properties, including electron transport, ionic defect structure, chemical expansion and stress, and catalytic activity. In addition, the PI is currently developing a new program of undergraduate laboratory experiments that integrate research and teaching. This program provides undergraduates with formal opportunities to contribute to Ph.D.-level research in modern growth areas of chemical engineering, producing real data that will be published (not just put into a lab report). In this way research and undergraduate education are on the same track, with a complementary agenda. The proposed project will contribute one experiment to this educational program, which is linked (and feeds directly into) our research program in electrochemical ceramics. Students will screen new materials for electronic structure using high-temperature magnetic susceptibility measurements and Taguchi analysis methods.%%%This project will contribute broadly to our understanding of electronic structure in complex materials. The results are of general interest to all branches of materials science, including solid-state electrochemistry, electronic materials, ceramics, as well as inorganic chemistry and physics. This project will also provide specific information about electronic structure in one class of materials, of immediate value to workers developing reaction/separation membranes and solid-oxide fuel cells. The principal investigator has 8 years academic and 4 years industrial experience in this field, bringing a strong mix of fundamental and practical perspectives. This work is highly original, and contributes several novel advances to proven experimental techniques. The experimental plan is well organized, and the proposing institution has a world-class infrastructure for work in this cross-disciplinary field. In addition, the career development plan of the PI will help establish a strong fundamental research and educational program in a new, exciting, area of technology. This program will not only educate individual scientists in its field, but will also tightly integrate research and teaching in a way that benefits both, and opens new opportunities for undergraduates (many of whom, at CWRU, are women and minorities) to participate in cutting-edge research on a broad scale. This approach provides a new template for teaching that other higher-educational institutions may benefit from. Knowledge gained from both research and educational development will be disseminated broadly through the literature, and directly through strong ties of the PI to industry and the American Society of Engineering Education.
电化学陶瓷包括各种现有和新兴技术,包括气体传感器、燃料电池、气体分离膜和膜反应器。 对电化学陶瓷性能建模和开发具有改进性能的新材料至关重要的是对电子结构的深刻理解。由于大多数电化学陶瓷具有复杂的中间长度尺度顺序,它们的性质往往无法解释时,从传统的范式调用本地化或集体的电子结构的观点。 为了更全面地了解电化学陶瓷中的电子结构,我们提出了一种新型的高灵敏度法拉第天平,用于测量具有一般组成的LaSrCoFe氧化物(LSCF)的过渡金属钙钛矿中的定域和离域电子的数量.这些测量将用于解释电化学性质的平行研究,包括电子传输,离子缺陷结构,化学膨胀和应力,以及催化活性。此外,PI目前正在开发一个新的本科实验室实验计划,将研究与教学相结合。该计划为本科生提供正式的机会,为博士学位做出贡献。在化学工程的现代增长领域进行水平研究,产生将被发表的真实的数据(而不仅仅是放入实验室报告)。 通过这种方式,研究和本科教育处于同一轨道上,具有互补的议程。拟议的项目将为该教育计划提供一个实验,该计划与我们的电化学陶瓷研究计划相关联(并直接提供)。学生将使用高温磁化率测量和田口分析方法筛选电子结构的新材料。该项目将广泛地促进我们对复杂材料中电子结构的理解。这些结果对材料科学的所有分支都具有普遍意义,包括固态电化学,电子材料,陶瓷以及无机化学和物理。 该项目还将提供有关一类材料电子结构的具体信息,对开发反应/分离膜和固体氧化物燃料电池的工作人员具有直接价值。 首席研究员在该领域有8年的学术和4年的工业经验,带来了基础和实践观点的强烈组合。 这项工作是高度原创性的,并为经过验证的实验技术做出了一些新的进展。 实验计划组织良好,提议的机构拥有世界一流的基础设施,可在这一跨学科领域开展工作。 此外,PI的职业发展计划将有助于在一个新的,令人兴奋的技术领域建立一个强大的基础研究和教育计划。该计划不仅将教育科学家个人在其领域,但也将紧密结合研究和教学的方式,既有利于,并打开本科生(其中许多人,在CWRU,是妇女和少数民族)参与在广泛的前沿研究的新机会。这种方法为其他高等教育机构提供了一个新的教学模板。从研究和教育发展中获得的知识将通过文献广泛传播,并直接通过PI与行业和美国工程教育学会的紧密联系传播。

项目成果

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Stuart Adler其他文献

Stuart Adler的其他文献

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{{ truncateString('Stuart Adler', 18)}}的其他基金

Planning IUCRC at University of Washington: Energy Information Nexus (EIN)
华盛顿大学规划 IUCCRC:能源信息关系 (EIN)
  • 批准号:
    1916302
  • 财政年份:
    2019
  • 资助金额:
    $ 31.24万
  • 项目类别:
    Standard Grant
Operando imaging of solid state electrochemical interfaces using scanning thermo-ionic microscopy
使用扫描热离子显微镜对固态电化学界面进行操作成像
  • 批准号:
    1708376
  • 财政年份:
    2018
  • 资助金额:
    $ 31.24万
  • 项目类别:
    Standard Grant
GOALI: Probing Temporospatial Correlations at the Nanoscale in High-Temperature Electrocatalysts
GOALI:探测高温电催化剂纳米尺度的时空相关性
  • 批准号:
    1435968
  • 财政年份:
    2014
  • 资助金额:
    $ 31.24万
  • 项目类别:
    Standard Grant
Collaborative Research: Three-Dimensional Microstructural and Chemical Mapping of Solid Oxide Fuel Cell Electrodes: Processing, Structure, Stability, and Electrochemistry
合作研究:固体氧化物燃料电池电极的三维微观结构和化学测绘:加工、结构、稳定性和电化学
  • 批准号:
    0907662
  • 财政年份:
    2009
  • 资助金额:
    $ 31.24万
  • 项目类别:
    Standard Grant
Nonlinear Harmonic Techniques for Studies of Solid Oxide Fuel Cell Electrodes
用于研究固体氧化物燃料电池电极的非线性谐波技术
  • 批准号:
    0829171
  • 财政年份:
    2008
  • 资助金额:
    $ 31.24万
  • 项目类别:
    Standard Grant
Collaborative Research: Three-Dimensional Mapping of Solid Oxide Fuel Cell Electrodes: Processing, Structure, Stability, and Electrochemistry
合作研究:固体氧化物燃料电池电极的三维绘图:加工、结构、稳定性和电化学
  • 批准号:
    0542874
  • 财政年份:
    2005
  • 资助金额:
    $ 31.24万
  • 项目类别:
    Continuing Grant
Development of Nonlinear Harmonic Techniques for Studies of Solid Oxide Fuel Cell Cathodes
用于固体氧化物燃料电池阴极研究的非线性谐波技术的发展
  • 批准号:
    0412076
  • 财政年份:
    2004
  • 资助金额:
    $ 31.24万
  • 项目类别:
    Continuing Grant
Chemical Expansion of Mixed Conducting Ceramics
混合导电陶瓷的化学膨胀
  • 批准号:
    0222001
  • 财政年份:
    2002
  • 资助金额:
    $ 31.24万
  • 项目类别:
    Standard Grant
CAREER: Electrochemical Ceramics - Understanding the Gap between Localized and Collective Viewpoints of Electronic Structure
职业:电化学陶瓷 - 了解电子结构的局部观点和集体观点之间的差距
  • 批准号:
    0222002
  • 财政年份:
    2002
  • 资助金额:
    $ 31.24万
  • 项目类别:
    Continuing Grant
Chemical Expansion of Mixed Conducting Ceramics
混合导电陶瓷的化学膨胀
  • 批准号:
    0074539
  • 财政年份:
    2000
  • 资助金额:
    $ 31.24万
  • 项目类别:
    Standard Grant

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了解和改进电化学二氧化碳捕获
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用于高效生产有机化学品的循环和生物底物的电化学氧化 (ELOXYCHEM)
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