Ionomer thin film studies: effect of ionomer type on structure and properties

离聚物薄膜研究：离聚物类型对结构和性能的影响

• 批准号: 507888-2016
• 负责人: Karan, Kunal
• 金额: $ 8.37万
• 依托单位: University of Calgary
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=693002
• 关键词: Ionomer; thin; film; studies; effect

Polymer electrolyte fuel cells (PEFCs) have regained a lot of interest over the past year after the launch of first PEFC-powered commercial vehicle by Toyota - the Mirai - in December 2014. Continual improvement in performance and reduction in cost still remain the mid-to-long term focus for this technology. The ion-conducting polymer (ionomer) is a critical material component of PEFCs. This material exists as 10s of microns thick electrolyte membrane and also as nano-thin films in the catalyst layer of PEFCs. The ultimate objective of the proposed research is to establish the structure-property relationships of the ultra-thin ionomer films for a number of different ionomers varying in molecular structure to help our industrial partner make science-based choice in selecting ionomer type and to tune fabrication conditions for designing high performance CLs. Additionally, from the new knowledge/data generated, rational design rules might be set up for novel synthesis or development of ionomer. In addition, the fundamental knowledge on ionomer structure-property relations could be useful to broader engineering/scientific/technological community, e.g. those involved in using thin ionomer films for other applications such as actuators, electrolyzers, sensors, polymer electrolyte based batteries in as well as new methodologies.

在2014年12月丰田推出首款PEFC动力商用车--米拉伊后，聚合物电解质燃料电池（PEFC）在过去一年中重新引起了人们的兴趣。性能的持续改进和成本的降低仍然是这项技术的中长期重点。离子导电聚合物（离聚物）是PEFC的关键材料组分。这种材料以几十微米厚的电解质膜存在，也以纳米薄膜存在于PEFC的催化剂层中。拟议研究的最终目标是建立超薄离聚物膜的结构-性能关系，用于分子结构不同的一些不同的离聚物，以帮助我们的工业合作伙伴在选择离聚物类型时做出基于科学的选择，并调整制造条件以设计高性能CL。此外，从产生的新知识/数据，合理的设计规则可能会建立新的合成或开发的离聚物。此外，关于离聚物结构-性能关系的基础知识可能对更广泛的工程/科学/技术界有用，例如那些参与将离聚物薄膜用于其他应用（例如致动器、电解槽、传感器、基于聚合物电解质的电池）的人们以及新方法。