Advanced Membrane-Electrode Assembly (MEA) for PEM Fuel Cells

聚合物电解质膜（PEM）燃料电池已进入商业化的早期阶段，燃料电池公交车和汽车已成为清洁交通的重要组成部分。然而，它仍然被认为是昂贵的，需要提高性能和耐用性，降低铂催化剂的负载是降低成本的必要条件。拟议的研究项目旨在开发低成本、高性能和耐用的PEM燃料电池，用于清洁运输和其他新出现的应用，对改善城市地区的空气质量和减少温室气体排放作出重大贡献。本提案中描述的研究是通过合作和伙伴关系开发商业上可行的先进PEM燃料电池技术的一部分。该研究包括：1)通过原子和分子水平操作开发低铂和超低铂负载催化剂和活性载体；2)具有量产能力的低成本催化剂层配方和制造；3)低成本、高性能和耐用的膜电解质组件（MEAs）， PEM燃料电池动力系统的核心组件。所研制的催化剂和活性载体将通过物理和电化学手段进行表征；表征所制备的催化剂层的微观结构、孔隙结构和孔径分布以及有效输运性能；并将通过测试和评估其性能和耐久性来表征mea。为了有效地利用现有的专业知识和资源来加速进展，计划对拟议的研究采用协作方法。申请人和支持机构具有互补性的专业知识和技能，以及已经可用的研究基础设施，可以成功地开展拟议的研究，并且一直在通过面对面和电子会议和沟通共同开发和准备拟议的研究。这项研究的结果将有助于支持组织努力开发和商业化具有巨大潜力的PEM燃料电池技术。

Polymer electrolyte membrane (PEM) fuel cell has reached early stage of commercialization with fuel cell buses and vehicles becoming an essential part of clean transportation. However, it is still considered expensive with need for improvement in both performance and durability, and lowering platinum catalyst loading is essential for cost reduction. The proposed research project aims at developing low-cost, high performing and durable PEM fuel cells for clean transportation and other emerging applications, contributing significantly to improvement in the air quality of urban areas and to the reduction of greenhouse gas emissions. The research described in this proposal is a part of the effort to develop commercially viable advanced PEM fuel cell technology through collaboration and partnership. The proposed research involves the development of i) low- and ultra-low platinum loading catalysts and active supports through atomic and molecular level manipulation, ii) cost-effective formulation and fabrication of catalyst layers with volume production capability, and iii) low-cost, high performing and durable membrane-electrolyte assemblies (MEAs), the core component of PEM fuel cell power systems. The catalysts and active supports developed will be characterized through physical and electrochemical means; the catalyst layers fabricated will be characterized for their microstructure, pore structure and pore size distribution, and effective transport properties; and the MEAs will be characterized through testing and evaluation for their performance and durability. To effectively utilize the expertise and resources available for accelerated progress, a collaborative approach is planned for the proposed research. The applicants and the supporting organization have complementary expertise and skills with already available research infrastructure to carry out the proposed research successfully, and have been working together to develop and prepare this proposed research through in-person and electronic meeting and communication. The result of the proposed research will be useful for the supporting organization's effort to develop and commercialize PEM fuel cell technology of immense potential.