Direct formation of wafer-scale single-layer graphene films on the rough surface substrate by PECVD

Guo, Liangchao; Zhang, Zhenyu; Sun, Hongyan; Dang, Dai; Cui, Junfeng; Li, Mingzheng; Xu, Yang; Xu, Mingsheng; Du, Yanyan; Jiang, Nan; Huang, Feng; Lin, Cheng‐Te

doi:10.1016/j.carbon.2017.12.023

Cited by 67 publications

(41 citation statements)

References 46 publications

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“…This can be attributed to two main functions of plasma during the PECVD process. One is to provide the activation energy for methane decomposition, so as to increase carbon atom concentration and accelerate graphene growth [21]. The other is to bombard the graphene surface to produce defects.…”

Section: Resultsmentioning

confidence: 99%

“…Meanwhile, the dewetting of Ni film occurred on quartz surface along with some evaporation of Ni atom. Afterwards, saturated C atoms precipitated out of Ni, nucleated, and grew into defect-containing graphene [21,32]. Finally, the Ni/G electrode was fabricated with a graphene-clad Ni particle structure.…”

Section: Resultsmentioning

confidence: 99%

“…The preparation of the Ni/G electrode was based on the PECVD process in a tube furnace (BTF-1200C-II-SL, AnHui BEQ Equipment Tech.) [21]. Briefly, a 1-mm-thick quartz slide has been used as an electrode substrate.…”

Section: Preparation Of β-Cyclodextrin/ni/g Electrodementioning

confidence: 99%

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β-Cyclodextrin-Immobilized Ni/Graphene Electrode for Electrochemical Enantiorecognition of Phenylalanine

et al. 2020

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In this work, a Ni/graphene (Ni/G) electrode was designed and fabricated by plasma-enhanced chemical vapor deposition (PECVD) for the ultrasensitive recognition of d-and l-phenylalanine. Through a single-step PECVD process, the Ni/G electrode can achieve better hydrophilicity and larger catalytic surface area, which is beneficial for the electrochemical recognition of bio-objects. After surface modification with β-cyclodextrin, the Ni/G electrode can distinguish d-phenylalanine from l-phenylalanine according to a 0.09 V peak shift in differential pulse voltammetry tests. Moreover, this Ni/G electrode achieved a detection limit as low as 1 nM and a wide linear range from 1 nM to 10 mM toward l-phenylalanine, with great storage stability and working stability.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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β-Cyclodextrin-Immobilized Ni/Graphene Electrode for Electrochemical Enantiorecognition of Phenylalanine

et al. 2020

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“…36 In the CVD method, copper (Cu) and nickel (Ni) foils are widely used as a growth template for coating the graphene by using carbon sources such as C 2 H 2 , CH 4 , and C 2 H 4 for graphene synthesis. 57 Liu et al 58 reported that a novel layer-by-layer sandwiched graphene/PANI nanorods/carbon nanotube (G/PANI/CNT) heterostructures exhibited intimate interface contacts, fully network-structured CNT coating, dual physical supports, and synergistic effects, which can effective host the electrochemical properties of PANI with the electrolyte and restrain the volumetric changes of PANI. 54 Thanh et al 55 stated that high-quality gold nanoparticle-encapsulated few-layered graphene nano-hybrids were prepared by the CVD method and these nanoparticles were used as highly sensitive nonenzymatic glucose sensor.…”

Section: Introductionmentioning

confidence: 99%

“…Guo and coworkers showed that transfer-free single-layer graphene films with 2.5 inch in diameter on quartz substrate could be obtained with the growth temperature of 700°C, which is 250°C lower via plasma enhanced chemical vapor deposition (PECVD). 57 Liu et al 58 reported that a novel layer-by-layer sandwiched graphene/PANI nanorods/carbon nanotube (G/PANI/CNT) heterostructures exhibited intimate interface contacts, fully network-structured CNT coating, dual physical supports, and synergistic effects, which can effective host the electrochemical properties of PANI with the electrolyte and restrain the volumetric changes of PANI. 59 In the present study, N-doped, B-doped, S-doped fewlayer graphene were produced via CVD method on the 35 graphene prepared previously on Cu foil.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of in situ N‐, S‐, and B‐doped few‐layer graphene by chemical vapor deposition technique and their superior glucose electrooxidation activity

2019

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Summary At present, N‐, S‐, and B‐doped grapheme‐modified indium tin oxide (ITO) electrodes are produced and doping method effect on the glucose electrooxidation is investigated. Firstly, few‐layer graphene is produced by chemical vapor deposition (CVD) method. Then, N, S, and B doping is carried out after graphene produced by CVD to prepare N‐doped, B‐doped, and S‐doped few‐layer graphene. N, S, and B doping is carried out by two different ways as (a) doping after synthesis of few‐layer graphene and (b) in situ doping during few‐layer graphene production. These materials are characterized by X‐ray diffraction, scanning electron microscopy‐energy (SEM), Raman spectroscopy, and X‐ray photoelectron spectroscopy (XPS). One could note that graphene and nitrogen networks are clearly visible from SEM images. Raman spectra show that B, N, and S are doped on few‐layer graphene/ITO successfully. XPS results of graphene, N‐doped graphene, and in situ N‐doped graphene reveal that graphene and nitrogen atoms used in the preparation of the electrodes obtain mainly in their elemental state. Then, these N‐, S‐, B‐doped and in situ N‐, S‐, B‐doped few‐layer graphene materials are coated onto indium tin oxide (ITO) to obtain N‐, S‐, B‐doped and in situ N‐, S‐, B‐doped ITO electrodes for glucose (C6H12O6) electrooxidation. C6H12O6 electrooxidation measurements are investigated with cyclic voltammetry, chronoamperometry, and electrochemical impedance spectroscopy measurements. As a result, in situ N‐doped few‐layer graphene/ITO electrode displays the best C6H12O6 electrooxidation activity with 9.12 mA.cm−2 current density compared with other N‐, S‐, B‐doped graphene and in situ doped S and B grapheme‐modified ITO electrodes. Furthermore, this current density value for in situ N‐doped few‐layer graphene/ITO is highly above the values reported in the literature. In situ N‐doped few‐layer graphene/ITO electrode is a promising electrode for C6H12O6 electrooxidation because it exhibits the best electrocatalytic activity, stability, and resistance compared with other electrodes.

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Graphene‐ Based Metal and Metal Oxide Nanocomposites

Thakur

Jain

Kumar

et al. 2020

Metal Oxide Nanocomposites

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Direct formation of wafer-scale single-layer graphene films on the rough surface substrate by PECVD

Cited by 67 publications

References 46 publications

β-Cyclodextrin-Immobilized Ni/Graphene Electrode for Electrochemical Enantiorecognition of Phenylalanine

β-Cyclodextrin-Immobilized Ni/Graphene Electrode for Electrochemical Enantiorecognition of Phenylalanine

Synthesis of in situ N‐, S‐, and B‐doped few‐layer graphene by chemical vapor deposition technique and their superior glucose electrooxidation activity

Graphene‐ Based Metal and Metal Oxide Nanocomposites

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