DICP OpenIR
Three-Dimensional Assembly of PtNi Alloy Nanosticks with Enhanced Electrocatalytic Activity and Ultrahigh Stability for the Oxygen Reduction Reaction
Zhang, Hongjie1,2; Yi, Baolian1; Jiang, Shangfeng1,2; Zeng, Yachao1,2; Shao, Zhigang1
关键词Oxygen Reduction Reaction Ptni Alloy Nanostick Assembly Enhanced Activity Ultrahigh Stability
刊名CHEMELECTROCHEM
2017-06-01
DOI10.1002/celc.201700085
4期:6页:1436-1442
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Electrochemistry
研究领域[WOS]Electrochemistry
关键词[WOS]FUEL-CELLS ; CORE-SHELL ; PARTICLE-SIZE ; CATALYSTS ; METAL ; NANOPARTICLES ; DURABILITY ; NANOWIRES ; SURFACES ; METHANOL
英文摘要A three-dimensional (3D) assembly of PtNi alloy nanosticks (NSA) is synthesized through an effective organic solvothermal approach to enhance the specific activity and long-term durability for the oxygen reduction reaction (ORR). The 3D PtNi NSA is composed of interconnected nanosticks with an average diameter of approximately 5 nm, which are confirmed to be of high crystallinity with ordered atomic arrangement of ORR-favorable PtNi (111). After an electrochemical dealloying process, the surface of the nanosticks becomes rough with a large quantity of step-like nanostructures, which are verified to effectively improve the ORR activity. The electrochemical results of half-cell tests demonstrate that the 3D PtNi alloy NSA exhibits a 4.5 times higher mass activity than the Pt/C (20 wt%, JM) catalyst (0.58 A/mg) and a 5.1 times higher specific activity (742 mu A/cm(2)). Most importantly, after the accelerated deterioration test, the 3D PtNi alloy NSA catalyst shows almost no activity decrease, both in half- and single-cell tests. The 3D PtNi alloy NSA prepared here is indeed a promising electrocatalyst for practical electrocatalytic applications.
语种英语
WOS记录号WOS:000407694400024
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/149832
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell Syst & Engn Lab, 457 Zhongshan Rd, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Yuquan Rd, Beijing 100039, Peoples R China
推荐引用方式
GB/T 7714
Zhang, Hongjie,Yi, Baolian,Jiang, Shangfeng,et al. Three-Dimensional Assembly of PtNi Alloy Nanosticks with Enhanced Electrocatalytic Activity and Ultrahigh Stability for the Oxygen Reduction Reaction[J]. CHEMELECTROCHEM,2017,4(6):1436-1442.
APA Zhang, Hongjie,Yi, Baolian,Jiang, Shangfeng,Zeng, Yachao,&Shao, Zhigang.(2017).Three-Dimensional Assembly of PtNi Alloy Nanosticks with Enhanced Electrocatalytic Activity and Ultrahigh Stability for the Oxygen Reduction Reaction.CHEMELECTROCHEM,4(6),1436-1442.
MLA Zhang, Hongjie,et al."Three-Dimensional Assembly of PtNi Alloy Nanosticks with Enhanced Electrocatalytic Activity and Ultrahigh Stability for the Oxygen Reduction Reaction".CHEMELECTROCHEM 4.6(2017):1436-1442.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Zhang, Hongjie]的文章
[Yi, Baolian]的文章
[Jiang, Shangfeng]的文章
百度学术
百度学术中相似的文章
[Zhang, Hongjie]的文章
[Yi, Baolian]的文章
[Jiang, Shangfeng]的文章
必应学术
必应学术中相似的文章
[Zhang, Hongjie]的文章
[Yi, Baolian]的文章
[Jiang, Shangfeng]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

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。