Novel conductive metal oxide catalyst supports for fuel cells

用于燃料电池的新型导电金属氧化物催化剂载体

• 批准号: 523336-2018
• 负责人: Easton, EBradley
• 金额: $ 9.11万
• 依托单位: University of Ontario Institute of Technology
• 依托单位国家: 加拿大
• 项目类别: Idea to Innovation
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=649893
• 关键词: Novel; conductive; metal; oxide; catalyst

Current polymer electrolyte membrane fuel cells (PEMFC) technology rely heavily on Pt electrocatalysts to drive the anodic and cathodic reactions. Normally, Pt nanoparticles are dispersed onto a high surface carbon support (Pt/C) to maximize the surface area of the catalyst and increased cell performance. While carbon black has been the de facto catalyst support in fuel cell over the last 30 years, it is a liability when it comes to durability since it is prone to corrosion under the highly acidic and oxidative operating conditions of a PEM fuel cell. This is detrimental to the long-term performance of a fuel cell and hinders the longevity of fuel cell devices.****This proposal is focused on the study and enhancement of a new innovative fuel cell support technology, titanium sub-oxides doped with both Mo and Si (TOMS). This new support material has extremely high stability to corrosion and remarkable high electronic conductivity, considerably larger than any other metal oxide-based support developed to date. Because of this, the TOMS support technology is highly attractive for deployment in fuel cell systems for automotive and stationary power applications. It is expected that the results from this project will lead to the development of higher-performing and lower-cost fuel cells, which will enable Canada to meet its clean energy needs.****

目前的聚合物电解质膜燃料电池(PEMFC)技术在很大程度上依赖于铂电催化剂来驱动阳极和阴极反应。通常，铂纳米颗粒分散在高表面碳载体(铂/碳)上，以最大限度地扩大催化剂的表面积，提高电池性能。虽然在过去的30年里，炭黑一直是燃料电池中事实上的催化剂载体，但在耐用性方面，它是一个弱点，因为它在PEM燃料电池的高度酸性和氧化操作条件下容易腐蚀。这不利于燃料电池的长期性能，并阻碍了燃料电池器件的寿命。*本提案的重点是研究和增强一种新的燃料电池支撑技术--同时掺杂Mo和Si的亚钛氧化物(TOMS)。这种新的载体材料具有极高的腐蚀稳定性和显著的高电子传导性，比迄今开发的任何其他金属氧化物载体都要大得多。正因为如此，TOMS支持技术在汽车和固定电源应用的燃料电池系统中的部署非常有吸引力。预计该项目的结果将导致更高性能和更低成本的燃料电池的开发，这将使加拿大能够满足其清洁能源需求。