Synthesis of large-scale undoped and nitrogen-doped amorphous graphene on MgO substrate by chemical vapor deposition

Zhao, Jianwei; Zhu, Guoyin; Huang, Wen; He, Zhi Min; Feng, Xiang; Ma, Yanwen; Dong, Xiaochen; Fan, Quli; Wang, Lianhui; Hu, Zheng; Lü, Yinong; Huang, Wei

doi:10.1039/c2jm33209d

Cited by 51 publications

(39 citation statements)

References 40 publications

(49 reference statements)

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“…Meanwhile, the upshift of the G-band of ≈8 cm −1 is observed, further confi rming the increase of defects after 100 000 cycles. [ 36,53 ] These phenomena are consistent with the following TEM results of electrode with various cycle times.…”

Section: Morphology and Structuresupporting

confidence: 93%

Nitrogen‐Doped Carbon Membrane Derived from Polyimide as Free‐Standing Electrodes for Flexible Supercapacitors

Dong

Zhang

et al. 2015

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Nitrogen-doped carbon materials have attracted great interest in the energy storage due to the better electrochemical performances than the pristine carbon materials. In this work, a heterocyclic polyimide containing benzopyrrole and benzimidazole rings is carbonized to fabricate the free-standing and flexible carbon membrane (CarbonPI ) with a high packing density (0.89 cm(-3)), in which the location of nitrogen atoms in the doped configurations is easily controlled. XPS analysis indicates that quaternary nitrogen is the predominant nitrogen-doped configurations. The high content of nitrogen effectively improves the wettability of the electrode materials. The CarbonPI membrane exhibits excellent volumetric capacitance (159.3 F cm(-3) at 1 A g(-1)), high rate capability (127.5 F cm(-3) at 7 A g(-1)), and long cycle life. TEM images reveal the very slight change of the microstructure of graphitic nanosheet of CarbonPI during the long charge/discharge cycles.

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Section: Morphology and Structuresupporting

confidence: 93%

Nitrogen‐Doped Carbon Membrane Derived from Polyimide as Free‐Standing Electrodes for Flexible Supercapacitors

Dong

Zhang

et al. 2015

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“…A continuous and completely disordered 2D network of sp 2 ‐hybridized carbon [Zachariasen carbon monolayer (Z‐CM)] can satisfy all the requirements of 2D glass. Because Z‐CM does not exist in nature, various synthetic approaches have been developed . However, in most cases, their disordering and continuity do not satisfy the requirements above.…”

Section: Direct Growth Of Graphene On the Surface Of Ge And Its Applimentioning

confidence: 99%

Graphene on Group‐IV Elementary Semiconductors: The Direct Growth Approach and Its Applications

et al. 2019

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Since the first development of large‐area graphene synthesis by the chemical vapor deposition (CVD) method in 2009, CVD‐graphene has been considered to be a key material in the future electronics, energy, and display industries, which require transparent, flexible, and stretchable characteristics. Although many graphene‐based prototype applications have been demonstrated, several important issues must be addressed in order for them to be compatible with current complementary metal‐oxide‐semiconductor (CMOS)‐based manufacturing processes. In particular, metal contamination and mechanical damage, caused by the metal catalyst for graphene growth, are known to cause severe and irreversible deterioration in the performance of devices. The most effective way to solve the problems is to grow the graphene directly on the semiconductor substrate. Herein, recent advances in the direct growth of graphene on group‐IV semiconductors are reviewed, focusing mainly on the growth mechanism and initial growth behavior when graphene is synthesized on Si and Ge. Furthermore, recent progress in the device applications of graphene with Si and Ge are presented. Finally, perspectives for future research in graphene with a semiconductor are discussed.

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“…Depending on the carbon source graphene was grown in different scale and layer thickness on SiO 2 , Al 2 O 3 etc. Graphene has been also prepared through CVD method directly on various oxides surfaces, such as MgO,− SiO 2 , Al 2 O 3 , ZrO 2 , and HfO 2 , however in most of the cases this direct method produces graphene films with relatively poor quality.…”

Section: Preparation Strategies For Graphene‐coated Metal Oxide Supportsmentioning

confidence: 99%

A Brief Review of the Synthesis and Catalytic Applications of Graphene‐Coated Oxides

Luo

Zafeiratos

2017

ChemCatChem

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The potential applications of graphene‐based materials in catalysis have been intensively studied owing to the unique 2D structure of graphene and its superior physicochemical properties. Recently, graphene‐coated oxide composites have been fabricated and tested as catalysts or catalytic supports, demonstrating a significant improvement on the catalytic performance. This article briefly reviews the recent progress in the design and fabrication of graphene‐coated oxides including wet transfer, chemical vapor deposition and self‐assembly methods. The applications of these materials in catalysis as well as the role of graphene in the modification of oxide properties and the enhancement of catalytic activity are also discussed.

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Synthesis of large-scale undoped and nitrogen-doped amorphous graphene on MgO substrate by chemical vapor deposition

Cited by 51 publications

References 40 publications

Nitrogen‐Doped Carbon Membrane Derived from Polyimide as Free‐Standing Electrodes for Flexible Supercapacitors

Nitrogen‐Doped Carbon Membrane Derived from Polyimide as Free‐Standing Electrodes for Flexible Supercapacitors

Graphene on Group‐IV Elementary Semiconductors: The Direct Growth Approach and Its Applications

A Brief Review of the Synthesis and Catalytic Applications of Graphene‐Coated Oxides

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