期刊
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 16, 期 30, 页码 16278-16283出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4cp02208d
关键词
-
资金
- National Center for Research Resources [5 G12RR013646-12]
- National Institute on Minority Health and Health Disparities from the National Institutes of Health [G12MD007591]
- NSF [DMR-1103730, DMR 0934218]
- Welch Foundation [AX-1615]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1103730] Funding Source: National Science Foundation
Trimetallic nanoparticles possess different properties than their mono- and bi-metallic counterparts, opening a wide range of possibilities for diverse potential applications with the notion to study possible morphology, atomic ordering, reduce precious metal consumption and many others. In this paper, we present a comprehensive experimental study on AuCu-Pt trimetallic nanoparticles with an average diameter of 15 +/- 1.0 nm, synthesized in a one-pot synthesis method and characterized by the Cs-corrected scanning transmission electron microscopy technique that allowed us to probe the structure at the atomic level resolution. A new way to control the nanoparticle morphology by the presence of third metal (Pt) is also discussed by the overgrowth of Pt on the as prepared AuCu core by Frank-van der Merwe (FM) layer-by-layer and Stranski-Krastanov (SK) island-on-wetting-layer growth modes. With the application of this research, we are now a step closer to produce optimum catalysts in which the active phase forms only surface monolayers. In addition, the nanoalloy exhibits high index facet surfaces with {211} and {321} families that are highly open-structure surfaces and are interesting for the catalytic applications.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据