期刊
NANO LETTERS
卷 18, 期 10, 页码 6334-6339出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.8b02657
关键词
Carbon nanotube; catalysis; chemTEM; transmission electron microscopy; metal cluster
类别
资金
- China Scholarship Council (CSC)
- Graphene Flagship
- DFG SPP Graphene
- DFG
- Ministry of Science, Research and the Arts (MWK) of Baden-Wuerttemberg
- ERC
- EPSRC
- EPSRC [EP/K005138/1, EP/R024790/1, EP/L014696/1] Funding Source: UKRI
Subnanometer Re clusters confined in a single walled carbon nanotube are activated by the 80 keV electron beam to promote the catalytic growth of a new carbon nanotube. Transmission electron microscopy images the entire process step-by-step, with atomic resolution in real time, revealing details of the initial nucleation followed by a two-stage growth. The atomic dynamics of the Re cluster correlate strongly with the nanotube formation process, with the growth accelerating when the catalyst becomes more ordered. In addition to the nanotube growth catalyzed by Re nanoclusters, individual atoms of Re released from the nanocluster play a role in the nanotube formation.
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