SBIR Phase II: Bimetallic Oxygen Reduction Catalysts for Proton Exchange Membrane Fuel Cells

这个小型企业创新研究(SBIR)第二阶段项目将开发以高面积碳为载体的铂过渡金属合金催化剂，用于质子交换膜燃料电池的氧阴极。第二阶段项目将在第一阶段成功的基础上，通过优化负载式铂(铂)合金催化剂的合金成分和粒度，以实现有效的氧还原。低温合成方法使T/J Technologies能够生产具有最小铂聚集的负载型铂合金。与单独的铂相比，这种合金组合物将氧还原的过电位降低了50 mV，生产的颗粒尺寸(3-5 nm)将最大限度地提高铂的利用率和氧还原效率。性能将在半电池和全燃料电池实验中展示。该项目产生的催化剂将使PEM燃料电池能够更有效地运行。该项目的潜在商业应用将是改进的用于汽车推进的质子交换膜燃料电池的氧还原催化剂和千瓦级的离网发电。这些都是潜在的大市场，对能源效率、国际竞争力和减排都有有益的影响。

This Small Business Innovation Research (SBIR) Phase II project will develop platinum-transition metal alloy catalysts that are supported on high area carbon for oxygen cathodes in proton exchange membrane fuel cells. The Phase II project will build on the success of Phase I by optimizing the alloy composition and particle size of supported Platinum (Pt) alloy catalysts for efficient oxygen reduction. Low temperature synthesis methods allow T/J Technologies to produce supported Pt alloys with minimal Pt aggregation. Alloy compositions that reduce the over potential toward oxygen reduction by 50 mV versus Pt alone and will be produced with particles sizes (3-5 nm) that maximize Pt utilization and oxygen reduction efficiency. Performance will be demonstrated in half-cell and full fuel cell experiments. Catalysts resulting from this project will enable PEM fuel cells to operate more efficiently.The potential commercial applications from this project would be improved oxygen reduction catalysts for proton exchange membrane fuel cells for vehicle propulsion and kilowatt-scale off-grid electric power generation. These are potentially large markets with beneficial impacts on energy efficiency, international competitiveness, and emissions reductions.