SBIR Phase II: Low-Cost Proton Exchange Membrane Hydrogen Oxidation Catalysts

DMI-9531564科赛克这一小型企业创新研究第二阶段旨在大幅降低燃料电池的成本，燃料电池正在积极开发，作为电动汽车的动力源。最近完成的第一阶段计划证明了在质子交换膜燃料电池(PEMFC)中使用价格低廉、贵金属含量极少的催化剂作为氢氧化催化剂的可行性。该催化剂旨在取代目前在质子交换膜燃料电池中使用的昂贵的PI阳极催化剂。第二阶段计划的目标包括(1)继续开发催化剂，包括研究提高耐污染能力的方法；(2)开发改进的电极结构以增强PEMFC的性能，特别是在高电流密度下的性能；(3)评估含有少量或不含贵金属的低成本阴极催化剂；以及(4)扩大包含堆高和活性区域的低成本催化剂的PEMFC电堆。该计划最终将使6节PEMFC电堆连续运行1000小时，每个电池具有160 cm2的有源区，其中包含最有希望的阳极和阴极催化剂。开发廉价的催化剂来取代高铂含量的PEMFC催化剂将显著降低PEMFC的成本，提高PEMFC汽车与内燃机汽车的经济竞争力。由于加利福尼亚州和东北部各州最近要求零排放车辆，具有低成本阳极催化剂的质子交换膜燃料电池潜在着巨大的商业市场。燃料电池也被考虑用于分散的微型热电联产应用；低成本的PEMFC对这种应用和其他热电联产应用很有吸引力。军事应用包括移动发电机和交通应用。膜燃料电池、阳极催化剂、氢氧化

DMI-9531564 Kosek This Small Business Innovation Research Phase II is directed at a method to significantly reduce the cost of fuel cells actively being developed as power sources for electric vehicles. A recently completed Phase I program demonstrated the feasibility of inexpensive catalysts, containing very little noble metal, as H2 oxidation catalysts in a proton-exchange membrane fuel cell (PEMFC). The catalyst is intended to replace the costly PI anode catalysts currently used in PEMFCs. Objectives of the Phase II program include (1) continued catalyst development, including investigation of methods to improve contaminant tolerance, (2) development of improved electrode structures to enhance PEMFC performance, particularly at high current density, (3) evaluate low-cost cathode catalysts containing little or no noble metal, and (4) to scale-up a PEMFC stack containing the low-cost catalysts in both stack height and active area. The program will culminate in continuous operation for 1000 hours of a 6-cell PEMFC stack, with each cell having a 160 cm2 active area, containing the most promising anode and cathode catalyst. The development of inexpensive catalysts to replace the high Pt-content PEMFC catalyst would result in a significant reduction in PEMFC cost, increasing the economic competitiveness of PEMFC-powered vehicles with vehicles powered by Internal combustion engines. Due to the recent mandates of California, and states in the Northeast requiring zero emission vehicles, there is potentially a large commercial market for PEMFCs with the low-cost anode catalyst. Fuel cells are also being considered for dispersed micro-cogeneration applications; the low-cost PEMFC is attractive for this application and other cogeneration applications. Military applications include mobile electric generators and transportation applications. exchange membrane fuel cell, anode catalyst, hydrogen oxidation _