Advanced multi-functional free-standing graphene film based fuel cell catalysts

先进的多功能独立式石墨烯薄膜燃料电池催化剂

• 批准号: 462970-2014
• 负责人: Chen, Zhongwei
• 金额: $ 10.93万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Strategic Projects - Group
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=598113
• 关键词: Advanced; multi; functional; free; standing

The development of cost-competitive, highly efficient, and environmentally benign energy conversion technologies is a major global challenge. Fuel cells offer the potential to convert chemical energy directly int electrical energy with high efficiencies and zero emissions during operation. Proton exchange membrane fuel cells (PEMFCs) are attracting enormous attention due to their great potential in transportation, residential and portable applications. One major technical barriers specifically associated with the fuel cell catalysts are the low Pt utilization and insufficient durability of currently commercial Pt based catalyst layer electrodes. Our approach to solving the problem is to design a single and cost-effective multi-functional graphene nanosheets (MF-G) film catalyst, which concurrently possesses the triple-function with catalytic, mixed ion and electronic conductivity properties necessary to overcome current challenges facing PEMFC commercialization. This work entails a unique approach in the development of PEMFC catalyst electrodes, namely the innovative development of novel reduced graphene oxide (GO) films functionalized with components responsible for mixed ion and electron conduction as well as electrochemical catalytic activity. The novel electrode based on he MF-G will not only simplify the electrode fabrication by elimnating the binders in the coventional electrodes but also improve the catalytic activity and durability of the It is expected that the results of the proposed research will provide a potential breakthrough needed in the effort to make PEMFCs a commercially viable technology through performance improvement, including durability, energy conversion efficiency, and cost reduction. The results of the proposed research will not only effectively reduce the cost and enhance the performance of PEMFCs, it will expand and enhance the capability of relevant Canadian Graphene production and energy industries, thus contributing to the development of a knowledge-based Canadian economy. The proposed activity also aims to train highly qualified personnel (HQP) who will be critical in the development of next generation technologies in Canada and globally.

开发具有成本竞争力、高效和环境友好的能源转换技术是一项重大的全球挑战。燃料电池提供了将化学能直接转化为电能的潜力，在操作期间具有高效率和零排放。质子交换膜燃料电池（PEMFC）由于其在交通、住宅和便携式应用中的巨大潜力而引起了极大的关注。与燃料电池催化剂特别相关的一个主要技术障碍是目前商业Pt基催化剂层电极的低Pt利用率和不足的耐久性。我们解决这一问题的方法是设计一种单一且具有成本效益的多功能石墨烯纳米片（MF-G）膜催化剂，该催化剂同时具有克服PEMFC商业化所面临的挑战所需的催化，混合离子和电子导电性能的三重功能。这项工作需要一个独特的方法，在PEMFC催化剂电极的发展，即创新的发展与负责混合离子和电子传导以及电化学催化活性的组件功能化的新型还原氧化石墨烯（GO）膜。基于MF-G的新型电极不仅通过消除常规电极中的粘合剂来简化电极制造，而且还改善了催化活性和耐久性。预期所提出的研究的结果将提供通过性能改进（包括耐久性、能量转换效率）使PEMFC成为商业上可行的技术的努力中所需的潜在突破。和降低成本。拟议研究的结果不仅将有效降低PEMFC的成本并提高其性能，还将扩大和提高加拿大相关石墨烯生产和能源行业的能力，从而为加拿大知识经济的发展做出贡献。拟议的活动还旨在培训高素质人员（HQP），他们将对加拿大和全球下一代技术的发展至关重要。