An Electrochemical Method for the Production of Graphite Oxide

Parker, Andrew James; Dickinson, James; Boxall, Colin; Joyce, Malcolm J.

doi:10.1149/05314.0023ecst

Cited by 6 publications

(3 citation statements)

References 13 publications

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“…Secondly, the method is relatively simple such that a scale-up to industrial production levels could be comparatively straightforward. Moreover, thirdly, hazardous chemicals and the lack of necessity for temperature control and makes the electrochemical production of GO more environmentally friendly [126,148,150,167].…”

Section: Electrochemical Exfoliation Of Graphitementioning

confidence: 99%

Graphene preparation and graphite exfoliation

Moosa¹,

Abed²

2021

Turk J Chem

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The synthesis of Graphene is critical to achieving its functions in practical applications. Different methods have been used to synthesis graphene, but graphite exfoliation is considered the simplest way to produce graphene and graphene oxide. In general, controlling the synthesis conditions to achieving the optimum yield, keeping the pristine structure to realize on-demand properties, minimum layers with the smallest lateral size, and minimum oxygen content are the most obstacles experienced by researchers. Each application requires a specific graphene model, graphene oxides GO, or even graphene intercalated compounds (GIC) depending on synthesis conditions and approach. This paper reviewed and summarized the most researches in this field and focusing on exfoliation methods.

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Section: Electrochemical Exfoliation Of Graphitementioning

confidence: 99%

Graphene preparation and graphite exfoliation

Moosa¹,

Abed²

2021

Turk J Chem

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“…There are several works that suggest using alkaline media to exfoliate graphite anodes, with the product being predominantly graphite oxide. Parker et al 69 applied +60 V between a graphite foil anode and a steel rod cathode in 1 M NaOH solution. Chang et al 70 used standard aqueous ammonium hydroxide solution and applied +10 V for ca.…”

Section: A Kinlochmentioning

confidence: 99%

How to get between the sheets: a review of recent works on the electrochemical exfoliation of graphene materials from bulk graphite

et al. 2015

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Since the beginning of the 'graphene era' post-2004, there has been significant interest in developing a high purity, high yield, and scalable fabrication route toward graphene materials for both primary research purposes and industrial production. One suitable approach to graphene production lies in the realm of electrochemical exfoliation, in which a potential difference is applied between a graphite anode/cathode in the presence of an electrolyte-containing medium. Herein we review various works on the electrochemical fabrication of graphene materials specifically through the use of electrochemical intercalation and exfoliation of a graphite source electrode, focusing on the quality and purity of products formed. We categorise the most significant works in terms of anodic and cathodic control, highlighting the merits of the respective approaches, as well as indicating the challenges associated with both procedures.

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“…Therefore, scientists are pursuing the development of a wide variety of technologies for synthesizing high-quality low-cost graphene in large quantities. Graphite oxide or aggregated graphene oxide is an oxygenated graphene lattice with the functional groups on their basal planes and edges and is mostly used as a precursor in the production of graphene [3][4]. Although Hummers' or Improved Hummers' method is widely used to synthesize GO sheets, because of the usage of strong acids and oxidizing mixtures, it may cause impurities/ defects in the final products [5].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Graphene Oxide Through Ultrasonic Assisted Electrochemical Exfoliation

Aksoy

Anaklı

2019

Open Chemistry

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We report a ‘green’, simple and efficient approach for the production of graphene oxide (GO) by ultrasonic assisted electrochemical exfoliation of graphite rods, and by using Improved Hummers’ graphene oxide (IGO) as an electrolyte. The effects of applied bias, electrolyte concentration and the duration of the electrochemical exfoliation on the quality of the GO nanosheets were investigated. The produced graphene oxide with a high yield (> 48%), and the lowest defect was obtained in the ultrasonic assisted electrochemical exfoliation performed at 0.05% IGO mass percent in DI water and 50 V applied bias for 1 hour at room temperature. The structural, morphological and physical properties of the obtained nanostructures were analyzed by XRD, Raman, FESEM, STEM techniques and thermal conductivity analysis, respectively. The characteristic Raman bands were observed at 1354 cm-1 and 1590 cm-1 for the prepared GO nanosheets. The produced graphene oxides exhibited a lateral dimension of 3-7 μm revealed by field emission scanning electron microscopy (FESEM). It was observed that the thermal conductivity enhancement of 14.95% was obtained for GO, which was higher than the other IGO nanofluid (7.64%) with respect to DI water at 20oC.

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An Electrochemical Method for the Production of Graphite Oxide

Cited by 6 publications

References 13 publications

Graphene preparation and graphite exfoliation

Graphene preparation and graphite exfoliation

How to get between the sheets: a review of recent works on the electrochemical exfoliation of graphene materials from bulk graphite

Synthesis of Graphene Oxide Through Ultrasonic Assisted Electrochemical Exfoliation

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