Chemical vapor deposition of graphene on liquid metal catalysts

Ding, Guqiao; Zhu, Yun; Wang, Shumin; Gong, Qian; Sun, Lei; Wu, Tianru; Xie, Xiaoming; Jiang, Mianheng

doi:10.1016/j.carbon.2012.11.018

Cited by 85 publications

(61 citation statements)

References 24 publications

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“…Recently, single-walled carbon nanotubes were demonstrated to growth from liquid Ga and In droplets on silicon substrates14. In 2013, few layer graphene films were found on the surface of a macroscopic molten Ga ball15. Compared with well studied d-block transition metals, p-block elements, the highest energy electron occupies a p-orbital are a virgin territory with respect to graphene growth.…”

mentioning

confidence: 99%

High-mobility graphene on liquid p-block elements by ultra-low-loss CVD growth

Wang

Zeng

Tan

et al. 2013

Sci Rep

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The high-quality and low-cost of the graphene preparation method decide whether graphene is put into the applications finally. Enormous efforts have been devoted to understand and optimize the CVD process of graphene over various d-block transition metals (e.g. Cu, Ni and Pt). Here we report the growth of uniform high-quality single-layer, single-crystalline graphene flakes and their continuous films over p-block elements (e.g. Ga) liquid films using ambient-pressure chemical vapor deposition. The graphene shows high crystalline quality with electron mobility reaching levels as high as 7400 cm2 V−1s−1 under ambient conditions. Our employed growth strategy is ultra-low-loss. Only trace amounts of Ga are consumed in the production and transfer of the graphene and expensive film deposition or vacuum systems are not needed. We believe that our research will open up new territory in the field of graphene growth and thus promote its practical application.

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confidence: 99%

High-mobility graphene on liquid p-block elements by ultra-low-loss CVD growth

Wang

Zeng

Tan

et al. 2013

Sci Rep

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“…Recently, the growth on an LM (pure Ga) surface for the fabrication of multilayer graphene films over just 3–5 min has attracted great interest, as shown in Figure (a). The wettability of gallium on amorphous carbon was tested .…”

Section: The Preparation and Related Applications Of Lm Catalystsmentioning

confidence: 99%

Progress, Mechanisms and Applications of Liquid‐Metal Catalyst Systems

Liang

Wang

Liu

2018

Chemistry A European J

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Among the significant growths of liquid metal (LM) research achieved over the past few years, the field of LM as catalysts offers promising opportunities for material scientists to exploit, and thus, burgeoning progress has been made. This article presents an overview of recent progress in developing LM catalysis, which spans from liquid-phase catalysts, photocatalysts, heterogeneous catalysts, and bimetallic catalysts, to catalysts based on liquid-metal/metal-oxide (LM/MO) frameworks. The different types, preparation methods, and typical applications of LM catalysts are classified and reviewed. Typical catalytic applications of LM systems discussed include the growth of graphene films/nanoribbons/carbon nanotube, photocatalytic degradation of CR or PFOA/splitting of H O/reduction of CO , and catalytic reactions like butane or acetylene dehydrogenation, methanol steam reforming, and reduction of potassium ferricyanide. The prospects, future trends, and challenges of LM catalysts are also mentioned.

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“…Furthermore, liquid Ga was also confirmed to be a good catalytic substrate to synthesize graphene through APCVD, 104 which is not a coincidence. Furthermore, liquid Ga was also confirmed to be a good catalytic substrate to synthesize graphene through APCVD, 104 which is not a coincidence.…”

Section: Liquid Gamentioning

confidence: 99%

Design of catalytic substrates for uniform graphene films: from solid-metal to liquid-metal

et al. 2015

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The controllable synthesis of uniform graphene with a specific layer number is crucial for both fundamental research and emerging applications due to the high sensitivity of the various extraordinary physicochemical properties of graphene to its layer numbers. However, the excessive segregation of extra C, the inactivation of the self-limiting of Cu and the superabundant nucleation at grain boundaries and defect sites render that the controllable synthesis of uniform graphene is still a challenge. By the employment of various solid and liquid metals with quasi-atomically smooth surfaces to avoid defects or grain boundaries, a series of studies have been performed and significant improvements have been achieved in the controllable synthesis of uniform graphene films. In this review, the representative strategies of designing catalytic substrates, including polycrystalline metals, single-crystalline metals, binary metal alloys and liquid metals, are highlighted. The future of the controllable synthesis of uniform graphene is also discussed.

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Chemical vapor deposition of graphene on liquid metal catalysts

Cited by 85 publications

References 24 publications

High-mobility graphene on liquid p-block elements by ultra-low-loss CVD growth

High-mobility graphene on liquid p-block elements by ultra-low-loss CVD growth

Progress, Mechanisms and Applications of Liquid‐Metal Catalyst Systems

Design of catalytic substrates for uniform graphene films: from solid-metal to liquid-metal

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