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| 质子交换膜燃料电池用Pt-Ag-Co/C催化剂的耐久性研究 |
| Durability of Pt-Ag-Co/C Catalyst in PEMFC |
| Received:February 28, 2015 |
| DOI： |
| 中文关键词: 材料化学 质子交换膜燃料电池 Pt-Ag-Co/C催化剂 两步法 耐久性 |
| 英文关键词: material chemistry PEMFC Pt-Ag-Co/C catalyst two-step process durability |
| 基金项目:南京工业大学材料化学工程国家重点实验室项目(38901159)，南京工业大学化工优势学科项目(38701001)。 |
| Author Name | Affiliation | E-mail | | JIANG Xin | College of Chemistry and Chemical Engineering, Nanjing Tech University, Nanjing 210009, China | | | YOU Xinmin | College of Chemistry and Chemical Engineering, Nanjing Tech University, Nanjing 210009, China | | | ZHAO Zhigang | College of Chemistry and Chemical Engineering, Nanjing Tech University, Nanjing 210009, China
Jiangsu Provincial Hydrogen Fuel Cell Engineering R&D Center, Hai''an 210066, Jiangsu, China
Nanjing Engineering Research Center for Hydrogen-Energy Key Materials, Nanjing 210009, China | zhaozg@njtech.edu.cn |
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| 中文摘要: |
| 研究了两步法制备的质子交换膜燃料电池(PEMFC)用Pt-Ag-Co/C催化剂的耐久性。循环伏安曲线测试表明Pt-Ag-Co/C催化剂与商业Pt/C催化剂的电催化活性相当。通过对扫描500次的循环伏安曲线分析，计算出Pt/C和Pt-Ag-Co/C催化剂扫描前后电化学活性面积(ECA)，进而研究了催化剂在PEMFC中的耐久性。结果表明，耐久性实验后Pt/C催化剂的ECA降低了87%；而Pt-Ag-Co/C催化剂仅降低了35%。研究表明微量Co的添加有效的提高了Pt-Ag/C催化剂的耐久性。 |
| 英文摘要: |
| Pt-Ag-Co/C catalyst for the proton exchange membrane fuel cell (PEMFC) was prepared by a two-step process, and its durability was investigated. The cyclic voltametric (CV) tests show that the electro-catalytic activity of Pt-Ag-Co/C and commercial Pt/C catalyst is almost identical. The long-term durability of Pt-Ag-Co/C and Pt/C catalysts was evaluated by comparing electrochemical catalytic active surface areas (ECA) before and after 500 cycles in CV. ECA was reduced by 87% for Pt/C catalyst while only 35% for Pt-Ag-Co/C catalyst. The results indicate that a small amount of Co in Pt-Ag-Co/C catalyst improves the durability. |
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