钼
纳米线
材料科学
金属
石墨
电解
纳米
氢
电极
氧化物
聚苯乙烯
纳米技术
产量(工程)
复合材料
化学工程
冶金
化学
聚合物
有机化学
物理化学
工程类
电解质
作者
Michael Zäch,Kwok H. Ng,Reginald M. Penner
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:2000-12-15
卷期号:290 (5499): 2120-2123
被引量:586
标识
DOI:10.1126/science.290.5499.2120
摘要
Metallic molybdenum (Mo(o)) wires with diameters ranging from 15 nanometers to 1.0 micrometers and lengths of up to 500 micrometers (0.5 millimeters) were prepared in a two-step procedure. Molybdenum oxide wires were electrodeposited selectively at step edges and then reduced in hydrogen gas at 500 degrees C to yield Mo(o). The hemicylindrical wires prepared by this technique were self-uniform, and the wires prepared in a particular electrodeposition (in batches of 10(5) to 10(7)) were narrowly distributed in diameter. Wires were obtained size selectively because the mean wire diameter was directly proportional to the square root of the electrolysis time. The metal nanowires could be embedded in a polystyrene film and lifted off the graphite electrode surface. The conductivity and mechanical resiliency of individual embedded wires were similar to those of bulk molybdenum.
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