Alternative Electrocatalysts for Hydrogen and Methanol Fuel Cells

氢和甲醇燃料电池的替代电催化剂

• 批准号: 0518900
• 负责人: Jingguang Chen
• 金额: $ 29.5万
• 依托单位: University of Delaware
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-09-01 至 2009-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0518900&HistoricalAwards=false
• 关键词: Alternative; Electrocatalysts; Hydrogen; Methanol; Fuel

AbstractProposal Title: Alternative Electrocatalysts for Hydrogen and Methanol Fuel CellsProposal Number: CTS - 0518900Principal Investigator: Jingguang G. ChenInstitution: University of Delaware Analysis (rationale for decision):The project will determine the feasibility of using tungsten carbides, as well as Pt supported on tungsten carbides, as alternative electrocatalysts for hydrogen and methanol fuel cells. Hydrogen and methanol fuel cells are attractive future energy sources in transportation vehicles and in small-scale static power supplies. At present the leading anode electrocatalysts consist of Pt and Pt/Ru alloys. However, these electrocatalysts are associated with two technical hurdles that hinder the commercialization of fuel cells: their prohibitively high cost at the current metal loading levels, and their susceptibility to catalyst poisoning by carbon monoxide (CO). The objective of the proposed research is to identify novel alternative electrocatalysts that are potentially less expensive and more CO-tolerant. The proposed research will include physical vapor deposition (PVD) synthesis and characterization of tungsten carbide films, investigation of reaction pathways under in situ conditions, and evaluation of electrocatalytic performance in hydrogen and methanol fuel cells. A systematic and molecular-level understanding of the reactions of hydrogen, methanol, water and CO on carbide surfaces will be developed. The combination of PVD synthesis, surface science studies, and in-situ electrochemical evaluation will be unique and innovative. The successful discovery of less expensive and more CO tolerant electrocatalysts will be of significant importance for both fundamental studies and for commercial applications. The project will provide educational opportunities for graduate and undergraduate students to learn basic concepts related to fuel cells, both in the classroom and in laboratories. The proposed research will also give students an opportunity to utilize the synchrotron facilities at the National Synchrotron Light Source (NSLS) at Brookhaven National Laboratory, which will provide students the scientific breadth and depth that are unavailable at individual academic laboratories.

摘要提案标题：氢和甲醇燃料电池的替代电催化剂提案编号：CTS - 0518900主要研究员：Jingguang G. Chen机构：特拉华大学分析（决定理由）：该项目将确定使用碳化钨以及铂负载的可行性碳化钨作为氢和甲醇燃料电池的替代电催化剂。 氢和甲醇燃料电池是交通车辆和小型静态电源中极具吸引力的未来能源。 目前主要的阳极电催化剂由Pt和Pt/Ru合金组成。 然而，这些电催化剂存在两个阻碍燃料电池商业化的技术障碍：在当前金属负载水平下其成本过高，以及容易受到一氧化碳（CO）催化剂中毒的影响。 拟议研究的目的是确定可能更便宜且更耐二氧化碳的新型替代电催化剂。 拟议的研究将包括碳化钨薄膜的物理气相沉积（PVD）合成和表征、原位条件下反应途径的研究以及氢和甲醇燃料电池中电催化性能的评估。 将对氢、甲醇、水和二氧化碳在碳化物表面上的反应进行系统和分子水平的理解。 PVD 合成、表面科学研究和原位电化学评估的结合将是独特且创新的。 成功发现更便宜、更耐二氧化碳的电催化剂对于基础研究和商业应用都具有重要意义。 该项目将为研究生和本科生提供教育机会，让他们在课堂和实验室学习与燃料电池相关的基本概念。 拟议的研究还将让学生有机会利用布鲁克海文国家实验室国家同步加速器光源（NSLS）的同步加速器设施，这将为学生提供个别学术实验室无法获得的科学广度和深度。