PtRu nanoparticles embedded in nitrogen doped carbon with highly stable CO tolerance and durability
文献类型：期刊论文
| 作者 | Zhang, Yunfeng; Yang, Zehui; Ling, Ying; Cai, Weiwei; Yu, Xinxin; Zhang, Quan; Yang, Jun |
| 刊名 | NANOTECHNOLOGY
 |
| 出版日期 | 2018 |
| 卷号 | 29期号:5 |
| 关键词 | Methanol Fuel-cells Oxygen Reduction Reaction Cathode Electrocatalyst Platinum Nanoparticles Facile Enhancement Catalyst Support Anode Catalyst Performance Oxidation Nanotubes |
| 英文摘要 | As is well known, the lower durability and sluggish methanol oxidation reaction (MOR) of PtRu alloy electrocatalyst blocks the commercialization of direct methanol fuel cells (DMFCs). Here, we design a new PtRu electrocatalyst, with highly stable CO tolerance and durability, in which the PtRu nanoparticles are embedded in nitrogen doped carbon layers derived from carbonization of poly(vinyl pyrrolidone). The newly fabricated electrocatalyst exhibits no loss in electrochemical surface area (ECSA) and MOR activity after potential cycling from 0.6-1.0 V versus reversible hydrogen electrode, while commercial CB/PtRu retains only 50% of its initial ECSA. Meanwhile, due to the same protective layers, the Ru dissolution is decelerated, resulting in stable CO tolerance. Methanol oxidation reaction (MOR) testing indicates that the activity of newly fabricated electrocatalyst is two times higher than that of commercial CB/PtRu, and the fuel cell performance of the embedded PtRu electrocatalyst was comparable to that of commercial CB/PtRu. The embedded PtRu electrocatalyst is applicable in real DMFC operation. This study offers important and useful information for the design and fabrication of durable and CO tolerant electrocatalysts. |
| 学科主题 | Chemistry |
| 语种 | 英语 |
| 公开日期 | 2018-12-04 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/16826]  |
| 专题 | 2018专题 |
| 推荐引用方式 GB/T 7714 | Zhang, Yunfeng,Yang, Zehui,Ling, Ying,et al. PtRu nanoparticles embedded in nitrogen doped carbon with highly stable CO tolerance and durability[J]. NANOTECHNOLOGY,2018,29(5). |
| APA | Zhang, Yunfeng.,Yang, Zehui.,Ling, Ying.,Cai, Weiwei.,Yu, Xinxin.,...&Yang, Jun.(2018).PtRu nanoparticles embedded in nitrogen doped carbon with highly stable CO tolerance and durability.NANOTECHNOLOGY,29(5). |
| MLA | Zhang, Yunfeng,et al."PtRu nanoparticles embedded in nitrogen doped carbon with highly stable CO tolerance and durability".NANOTECHNOLOGY 29.5(2018). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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