Carbide-Forming Groups IVB-VIB Metals: A New Territory in the Periodic Table for CVD Growth of Graphene

Early transition metals, especially groups IVB-VIB metals, can form stable carbides, which are known to exhibit excellent “noble-metal-like” catalytic activities. We demonstrate herein the applications of groups IVB-VIB metals in graphene growth using atmospheric pressure chemical vapor deposition t...

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Bibliographic Details
Published in:Nano letters 2014-07, Vol.14 (7), p.3832-3839
Main Authors: Zou, Zhiyu, Fu, Lei, Song, Xiuju, Zhang, Yanfeng, Liu, Zhongfan
Format: Article
Language:English
Subjects:
Carbides
Carbon
Catalysis
Catalysts
Catalytic methods
Chemical vapor deposition
Chemical vapor deposition (including plasma-enhanced cvd, mocvd, etc.)
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Fullerenes and related materials
diamonds, graphite
Graphene
Materials science
Methods of deposition of films and coatings
film growth and epitaxy
Methods of nanofabrication
Periodic table
Physics
Specific materials
Transition metals
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Summary:Early transition metals, especially groups IVB-VIB metals, can form stable carbides, which are known to exhibit excellent “noble-metal-like” catalytic activities. We demonstrate herein the applications of groups IVB-VIB metals in graphene growth using atmospheric pressure chemical vapor deposition technique. Similar to the extensively studied Cu, Ni, and noble metals, these transition-metal foils facilitate the catalytic growth of single- to few-layer graphene. The most attractive advantage over the existing catalysts is their perfect control of layer thickness and uniformity with highly flexible experimental conditions by in situ converting the dissolved carbons into stable carbides to fully suppress the upward segregation/precipitation effect. The growth performance of graphene on these transition metals can be well explained by the periodic physicochemical properties of elements. Our work has disclosed a new territory of catalysts in the periodic table for graphene growth and is expected to trigger more interest in graphene research.
ISSN:1530-6984
1530-6992
DOI:10.1021/nl500994m