化工进展 ›› 2024, Vol. 43 ›› Issue (6): 3080-3092.DOI: 10.16085/j.issn.1000-6613.2023-0729
• 工业催化 • 上一篇
冯占雄1(), 张创1,2(
), 刘德政1, 汪云1, 马强1, 王诚2(
)
收稿日期:
2023-05-04
修回日期:
2023-08-28
出版日期:
2024-06-15
发布日期:
2024-07-02
通讯作者:
张创,王诚
作者简介:
冯占雄(1995—),女,硕士研究生,研究方向为催化剂的制备及电化学。E-mail: zhanxiongfeng@hbuas.edu.cn。
基金资助:
FENG Zhanxiong1(), ZHANG Chuang1,2(
), LIU Dezheng1, WANG Yun1, MA Qiang1, WANG Cheng2(
)
Received:
2023-05-04
Revised:
2023-08-28
Online:
2024-06-15
Published:
2024-07-02
Contact:
ZHANG Chuang, WANG Cheng
摘要:
车用质子交换膜燃料电池作为解决能源危机和环境恶化问题的重要能源转换装置,成本高、阴极氧还原反应动力学慢和长时间运行阴极催化剂稳定性差等问题成为制约其发展的主要原因。为解决质子交换膜燃料电池阴极催化剂长期稳定性差的问题,运用连续管道微波制备技术,制备铂载量为50%(质量分数)的催化剂,并分别采用氮氢混合气(20%H2)和空气两种不同气氛对Pt/C催化剂进行退火处理,通过表征和测试研究两种气氛热处理对其氧还原性能的影响。制备的Pt/C-300(20% H2)催化剂30000圈衰减测试后仍能保持71.4m2/g和243mA/mg的高活性,实现了兼具高活性和高耐久性,为高氧还原性能催化剂的生产提供了一条有效可行的途径。
中图分类号:
冯占雄, 张创, 刘德政, 汪云, 马强, 王诚. 不同气氛热处理对连续管道微波技术制备Pt/C催化剂氧还原性能的影响[J]. 化工进展, 2024, 43(6): 3080-3092.
FENG Zhanxiong, ZHANG Chuang, LIU Dezheng, WANG Yun, MA Qiang, WANG Cheng. Effect of different atmosphere heat treatment on the oxygen reduction performance of Pt/C catalysts prepared by continuous pipeline microwave technology[J]. Chemical Industry and Engineering Progress, 2024, 43(6): 3080-3092.
检测样品 | 检测元素 | 质量分数/% |
---|---|---|
Pt/C-200(20% H2) | Pt | 48.5 |
Pt/C-300(20% H2) | Pt | 47.3 |
Pt/C-400(20% H2) | Pt | 46.5 |
表1 N2-H2(20% H2)气氛热处理50% Pt/C催化剂Pt含量测试
检测样品 | 检测元素 | 质量分数/% |
---|---|---|
Pt/C-200(20% H2) | Pt | 48.5 |
Pt/C-300(20% H2) | Pt | 47.3 |
Pt/C-400(20% H2) | Pt | 46.5 |
检测样品 | 检测元素 | 质量分数/% |
---|---|---|
Pt/C-200(Air) | Pt | 49.2 |
Pt/C-300(Air) | Pt | 48.7 |
Pt/C-400(Air) | Pt | 48.1 |
表2 空气气氛热处理50% Pt/C催化剂Pt含量测试
检测样品 | 检测元素 | 质量分数/% |
---|---|---|
Pt/C-200(Air) | Pt | 49.2 |
Pt/C-300(Air) | Pt | 48.7 |
Pt/C-400(Air) | Pt | 48.1 |
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