A novel IrNi@PdIr/C core-shell electrocatalyst with enhanced activity and durability for the hydrogen oxidation reaction in alkaline anion exchange membrane fuel cells
文献类型：期刊论文
| 作者 | Yi, Baolian1; Shao, Zhigang1; Qin, Bowen1,2; Yu, Hongmei1; Jia, Jia1,2; Jun, Chi1,2; Gao, Xueqiang1,2; Yao, Dewei1,2; Sun, Xinye1,2; Song, Wei1 |
| 刊名 | NANOSCALE
 |
| 出版日期 | 2018-03-14 |
| 卷号 | 10期号:10页码:4872-4881 |
| ISSN号 | 2040-3364 |
| DOI | 10.1039/c7nr09452c |
| 文献子类 | Article |
| 英文摘要 | Herein, a novel non-platinum core-shell catalyst, namely, IrNi@PdIr/C was prepared via a galvanic replacement reaction; it exhibits enhanced hydrogen oxidation activity and excellent stability under alkaline conditions. Electrochemical experiments demonstrated that the mass and specific activities at 50 mV of IrNi@PdIr/C are 2.1 and 2.2 times that of commercial Pt/C in 0.1 M KOH at 298 K, respectively. Moreover, accelerated degradation tests have shown that the electrochemically active surface area (ECSA) of IrNi@PdIr/C reduces by only 5.1%, which is almost 4 times less than that of commercial Pt/C and the mass activity at 50 mV of IrNi@ PdIr/C after 2000 potential cycles is still 1.8 times higher than that of aged Pt/C. XRD and XPS analysis suggest that the enhanced HOR activity is attributed to the weakening of the hydrogen binding to the PdIr overlayers induced by the IrNi core. The better stability to potential cycling can be associated with the PdIr shell, which inhibits oxide formation. These results suggest that IrNi@PdIr/C is a promising non-platinum anode catalyst for alkaline anion exchange membrane fuel cells. |
| WOS关键词 | OXYGEN REDUCTION REACTION ; COATED COPPER NANOWIRES ; MONOLAYER SHELL ; PERFORMANCE ; NANOPARTICLES ; CATALYSTS ; BASE ; GRAPHENE ; ACID ; NI |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000428786800030 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/169100]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Shao, Zhigang; Yu, Hongmei |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell Syst & Engn Grp, Zhongshan Rd 457, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yi, Baolian,Shao, Zhigang,Qin, Bowen,et al. A novel IrNi@PdIr/C core-shell electrocatalyst with enhanced activity and durability for the hydrogen oxidation reaction in alkaline anion exchange membrane fuel cells[J]. NANOSCALE,2018,10(10):4872-4881. |
| APA | Yi, Baolian.,Shao, Zhigang.,Qin, Bowen.,Yu, Hongmei.,Jia, Jia.,...&Song, Wei.(2018).A novel IrNi@PdIr/C core-shell electrocatalyst with enhanced activity and durability for the hydrogen oxidation reaction in alkaline anion exchange membrane fuel cells.NANOSCALE,10(10),4872-4881. |
| MLA | Yi, Baolian,et al."A novel IrNi@PdIr/C core-shell electrocatalyst with enhanced activity and durability for the hydrogen oxidation reaction in alkaline anion exchange membrane fuel cells".NANOSCALE 10.10(2018):4872-4881. |
入库方式： OAI收割
来源：大连化学物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。