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

Kosek这一小型企业创新研究第二阶段的目标是一种方法，以显着降低燃料电池的成本，积极开发作为电动汽车的电源。最近完成的第一阶段计划证明了廉价的催化剂的可行性，含有非常少的贵金属，作为氢氧化催化剂在质子交换膜燃料电池（PEMFC）。该催化剂旨在取代目前在PEMFC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）继续催化剂开发，包括研究提高污染物耐受性的方法，（2）开发改进的电极结构以提高PEMFC性能，特别是在高电流密度下，（3）评估含有很少或不含贵金属的低成本阴极催化剂，以及（4）在电池堆高度和活性面积上放大包含低成本催化剂的PEMFC电池堆。该计划将最终在连续运行1000小时的6电池PEMFC堆，每个电池具有160平方厘米的活性面积，含有最有前途的阳极和阴极催化剂。开发廉价的催化剂来替代高Pt含量的PEMFC催化剂将导致PEMFC成本的显著降低，从而提高PEMFC动力车辆与内燃机动力车辆的经济竞争力。 由于最近加州和东北部各州要求零排放车辆的要求，具有低成本阳极催化剂的PEMFC具有潜在的巨大商业市场。燃料电池也被考虑用于分散的微型热电联产应用;低成本的质子交换膜燃料电池对这种应用和其他热电联产应用很有吸引力。军事应用包括移动的发电机和运输应用。 交换膜燃料电池，阳极催化剂，氢氧化，电化学

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 _