Sub-2.0-nm Ru and composition-tunable RuPt nanowire networks

详细信息    查看全文

• 作者：Weiyue Zhao ; Dabing Huang ; Qiang Yuan ; Xun Wang
• 关键词：Ru ; Pt ; alloy ; nanowire networks ; electrocatalysis
• 刊名：Nano Research
• 出版年：2016
• 出版时间：October 2016
• 年：2016
• 卷：9
• 期：10
• 页码：3066-3074
• 全文大小：7,135 KB
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chinese Library of Science
  Chemistry
  Nanotechnology
  
• 出版者：Tsinghua University Press, co-published with Springer-Verlag GmbH
• ISSN：1998-0000
• 卷排序：9

文摘

Recently, the synthesis of ultrathin nanostructures has attracted increasing interest because of their unique structure and properties. In this work, we report the synthesis of sub-2.0-nm Ru and composition-tunable RuPt nanowire networks using an environmentally friendly aqueous method. The structures were characterized using transmission electron microscopy (TEM), high-resolution TEM, X-ray diffraction (XRD), and energy-dispersive X-ray (EDX) spectroscopy. Moreover, the combined utilization of sodium n-dodecyl sulfate and potassium fluoride was determined to play a key role in the formation of these ultrathin nanostructures. The electrocatalytic properties of the sub-2.0-nm RuPt nanowire networks were investigated for methanol oxidation in an acidic medium. The nanostructures displayed composition-dependent properties, and compared with commercial Ru₅₀Pt₅₀/C, the as-synthesized Ru₅₆Pt₄₄ ultrathin nanowire network exhibited enhanced stability.