Oriented Growth and Assembly of Ag@C@Co Pentagonalprism Nanocables and their Highly Active Selected Catalysis Along the Edges for Dehydrogenation
Oriented Growth and Assembly of Ag@C@Co Pentagonalprism Nanocables and their Highly Active Selected Catalysis Along the Edges for Dehydrogenation
复制标题
Ag@C@Co五角柱纳米电缆的定向生长和组装及其沿边缘的高活性选择性脱氢催化
DOI：
10.1002/adfm.201200274
复制
发表时间：
2012-07-10
影响因子：
19
通讯作者：
Peng, Jin
中科院分区：
文献类型：
--
作者：
Sun, Baolei;Wen, Ming;Peng, Jin
Magnetic double-shelled Ag@C@Co pentagonalprism nanocables are fabricated using a synchronous growth and oriented assembly process, in which the second shell of Co is arranged along the edges of Ag@C pentagonalprism nanowires (NWs). The resulting Ag@C@Co pentagonalprism nanocables exhibit an average diameter of 400 nm and consist of Ag core NWs with diameter of 200 nm and C middle layers with a thickness of 10 nm as well as outer Co shells with a thickness of 100 nm. UV-vis absorption spectroscopy shows that the Co shell on Ag@C NWs can damp the surface plasmon resonance (SPR) of the Ag core wires and lead to a red-shifted SPR absorption peak. Additionally, the Ag@C@Co nanocables have the ferromagnetic behavior, which can be controlled by modulating the shell density. The resulting magnetic Ag@C@Co nanocables exert excellent selected catalytic activity along the edges toward the dehydrogenation of ammonia borane aqueous under ambient conditions at room temperature.
