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材料导报  2024, Vol. 38 Issue (14): 23010027-5    https://doi.org/10.11896/cldb.23010027
  金属与金属基复合材料 |
料浆I/C比对PEMFC合金催化剂氧传质阻力的影响规律
谢雨秋1,2, 郭伟1,2,*
1 武汉理工大学材料复合新技术国家重点实验室,武汉 430070
2 佛山仙湖实验室,广东 佛山 528200
Influence of Slurry I/C Ratio on Oxygen Transfer Resistance of PEMFC Alloy Catalyst
XIE Yuqiu1,2, GUO Wei1,2,*
1 State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology, Wuhan 430070, China
2 Foshan Xianhu Laboratory, Foshan 528200, Guangdong, China
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摘要 氧气传输阻力对燃料电池性能有着重要的影响,而该阻力的大小也与料浆配方的I/C比和催化剂种类密切相关。本工作研究了不同I/C比对不同型号低载量合金催化剂性能的影响,使用了极限电流法对燃料电池的氧传质阻力变化规律进行分析。测试结果表明,虽然合金催化剂的电催化活性高于纯铂催化剂(PtCo/C＞PtRu/C＞Pt/C),但是I/C比变化对电池性能的影响更为关键:PtRu/C催化剂极限电流密度最低,氧气传输能力受到I/C比的影响最严重,PtCo/C次之,Pt/C催化剂的氧气传输能力受到的影响最小。与之对应的,三种催化剂的电池性能依次为Pt/C≈PtCo/C>PtRu/C。
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谢雨秋
郭伟
关键词:  I/C比  合金催化剂  氧传质阻力  燃料电池    
Abstract: Oxygen transport resistance has an important effect on fuel cell performance, and the magnitude of this resistance is also closely related to the I/C ratio of the slurry formulation and the catalyst type. In this work, the limiting current method was used to analyze the variation pattern of oxygen transport resistance of fuel cells by studying the effect of different I/C ratios on the performance of different types of low loading alloy catalysts. The test results show that although the electrocatalytic activity of alloy catalysts is higher than that of pure Pt catalysts (PtCo/C > PtRu/C > Pt/C), the I/C ratio variation has a more critical effect on the cell performance: PtRu/C catalysts have the lowest limit current density and the oxygen transport capacity is most severely affected by the I/C ratio, followed by PtCo/C, and Pt/C catalysts have the least affected. Correspondingly, the cell performance of the three catalysts is Pt/C≈PtCo/C>PtRu/C in order.
Key words:  I/C ratio    alloy catalyst    oxygen transport resistance    fuel cell
出版日期:  2024-07-25      发布日期:  2024-08-12
ZTFLH:  TM911.42  
基金资助: 国家自然科学基金(21975192);国防基础科研(JCKY2020206B507);先进能源科学与技术广东省实验室佛山分中心(佛山仙湖实验室)开放基金(XHD2022-002)
通讯作者:  * 郭伟,武汉理工大学材料复合新技术国家重点实验室副研究员、博士研究生导师。2016年德国卡尔斯鲁厄理工学院材料化学专业博士毕业后到武汉理工大学工作至今。目前主要从事质子交换膜燃料电池及其关键材料方面的研究工作。发表论文30余篇,包括Applied Energy、Nano Scale、ACS Applied Materials & Interfaces等。guowei2016@whut.edu.cn   
作者简介:  谢雨秋,武汉理工大学硕士研究生。2020年7月于湖北工业大学获得工学学士学位。目前主要研究领域为I/C比对不同低载量合金催化剂的氧传质阻力影响。
引用本文:    
谢雨秋, 郭伟. 料浆I/C比对PEMFC合金催化剂氧传质阻力的影响规律[J]. 材料导报, 2024, 38(14): 23010027-5.
XIE Yuqiu, GUO Wei. Influence of Slurry I/C Ratio on Oxygen Transfer Resistance of PEMFC Alloy Catalyst. Materials Reports, 2024, 38(14): 23010027-5.
链接本文:  
http://www.mater-rep.com/CN/10.11896/cldb.23010027  或          http://www.mater-rep.com/CN/Y2024/V38/I14/23010027
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