Synergistic Effects in Bimetallic Nanoparticles for Low Temperature Carbon Nanotube Growth
Synergistic Effects in Bimetallic Nanoparticles for Low Temperature Carbon Nanotube Growth
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DOI：
10.1002/adma.200801006
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发表时间：
2008-12-17
影响因子：
29.4
通讯作者：
Sankaran, R. Mohan
中科院分区：
文献类型：
--
作者：
Chiang, Wei-Hung;Sankaran, R. Mohan
在大气压微等离子体反应器中合成了尺寸和成分调谐的碳纳米管纳米颗粒，发现其在较低的温度和较高的生长速率下催化碳纳米管（CNT）的生长。动力学研究表明，CNT生长的活化能大大降低与纳米粒子合金，表明固有的催化活性是密切相关的化学组成。
Dimensionally and compositionally tuned bimetallic nanoparticles are synthesized in an atmospheric pressure microplasma reactor and found to catalyze carbon nanotube (CNT) growth at lower temperatures and higher growth rates than monometallic nanoparticles. Kinetic studies show that the activation energy for CNT growth is lowered substantially with nanoparticle alloys, demonstrating that intrinsic catalytic activity is intimately related to chemical composition.