ACT/SGER: Fuel Cell Electrocatalysts and Membraneless Fuel Cells

ACT/SGER：燃料电池电催化剂和无膜燃料电池

• 批准号: 0442056
• 负责人: Hector Abruna
• 金额: --
• 依托单位: Cornell University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-09-01 至 2007-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0442056&HistoricalAwards=false
• 关键词: ACT; SGER; Fuel; Cell; Electrocatalysts

We will focus our efforts in order to: (i) expand our ongoing work on the development of electrocatalytic materials for fuel cell applications based on ordered intermetallic phases, and (ii) employ these materials in both conventional fuel cells and in a new planar membraneless microchannel fuel cell design that we have recently developed. In the first part, the intent is to take advantage of the broad parameter-space available within the wide-range of ordered intermetallic phases with emphasis on binary and ternary phases, thereby asserting predictable control over structural, geometric and electronic effects in order to tailor materials for specific fuel cell applications with initial emphasis on anodes for direct fuel cells employing small organic molecules (including formic acid, methanol, and ethanol among others) as fuels. The use of ordered intermetallic phases as electrode materials is truly novel, and our work to date indicates that they could potentially represent an enabling technology for employing complex and high energy density fuels in high efficiency fuel cell applications. In the second part, we will employ nanoparticles of the materials described above and test them as fuel cell electrodes both in conventional fuel cells and in a new planar membraneless microchannel fuel cell design that we recently developed around the concept of laminar flow established through the use of a tapered flow boundary. The development of membraneless microchannel fuel cells represents an advance that could serve as a general energy platform for intelligence applications.The proposed work is intended to develop superior electrode materials for fuel cell applications through the use of the general class of materials known as "ordered intermetallics". The most promising candidates will be tested as very small particles (nanoparticles) using a flow fuel cell which will help in the rapid screening of materials under more realistic conditions. The Approaches to Combat Terrorism Program in the Directorate for Mathematics and Physical Sciences supports new concepts in basic research and workforce development with the potential to contribute to national security.

我们将集中努力：(I)扩大我们正在进行的基于有序金属间化合物相的燃料电池应用的电催化材料的开发工作，以及(Ii)将这些材料用于传统燃料电池和我们最近开发的新的平面无膜微通道燃料电池设计。在第一部分中，目的是利用广泛的有序金属间化合物相范围内可用的广泛参数空间，重点是二元和三元相，从而断言对结构、几何和电子效应的可预测控制，以便为特定的燃料电池应用量身定做材料，最初的重点是使用小有机分子(包括甲酸、甲醇和乙醇等)作为燃料的直接燃料电池的阳极。使用有序金属间化合物相作为电极材料是非常新颖的，我们到目前为止的工作表明，它们可能成为在高效燃料电池应用中使用复杂和高能量密度燃料的一种使能技术。在第二部分，我们将使用上述材料的纳米颗粒，并将其作为燃料电池电极在传统燃料电池和我们最近开发的新型平面无膜微通道燃料电池设计中进行测试，该设计围绕通过使用锥形流动边界建立的层流概念而开发。无膜微通道燃料电池的发展代表了一种可以作为智能应用的通用能源平台的进步。这项拟议的工作旨在通过使用被称为“有序金属间化合物”的一般类型的材料来开发用于燃料电池的优良电极材料。最有希望的候选者将使用流动燃料电池进行非常小的颗粒(纳米颗粒)测试，这将有助于在更现实的条件下快速筛选材料。数学和物理科学局的反恐方法方案支持基础研究和劳动力发展方面的新概念，有可能对国家安全作出贡献。