3D Graphene Foam as a Monolithic and Macroporous Carbon Electrode for Electrochemical Sensing

Dong, Xiaochen; Wang, Xuewan; Wang, Lianhui; Song, Hao; Zhang, Hua; Huang, Wei; Chen, Peng

doi:10.1021/am300459m

Cited by 298 publications

(208 citation statements)

References 34 publications

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“…Using Equation (3), a specific capacitance of 813 Fg -1 was obtained at a low current of 3 mA from the discharge curve for NF-G/NiO, which is closer to the specific capacitance that was obtained from the CV at a scan rate of 2 mVs -1 . These values are higher than those previously reported for G/NiO composites [34], but similar to those that Dong et al [30] reported at a scan rate of 5 mVs -1 for graphene foam/NiO composite where the nickel template was etched away. This can be attributed to the high conductivity of 3D graphene sheets and the successful loading of NF-G/NiO by the SILAR method, resulting in improved electrochemical performance of the composite.…”

Section: Methodssupporting

confidence: 87%

Chemical adsorption of NiO nanostructures on nickel foam-graphene for supercapacitor applications

et al. 2013

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Few-layer graphene was synthesized on a nickel foam template by chemical vapour deposition (CVD). The resulting three-dimensional (3D) graphene was loaded with nickel oxide nanostructures using the successive ionic layer adsorption and reaction (SILAR) technique. The composites were characterized and investigated as electrode material for supercapacitors. Raman spectroscopy measurements on the sample revealed that the 3D graphene consisted of mostly few layers, while X-ray diffractometry (XRD) and scanning electron microscopy (SEM) revealed the presence of nickel oxide. The electrochemical properties were investigated using cyclic voltammetry, electrochemical impedance spectroscopy and potentiostatic charge-discharge in aqueous KOH electrolyte. The novelty of this work is the use of the 3D porous cell structure of the nickel foam which allows for the growth of highly conductive graphene and subsequently provides support for uniform adsorption of the NiO onto the graphene. The NF-G/NiO electrode material showed excellent properties as a pseudocapacitive device with a high specific capacitance value of 783 Fg -1 at a scan rate of 2 mVs -1 . The device also exhibited excellent cycle stability, with 84% retention of the initial capacitance after 1,000 cycles. The results demonstrate that composites made using 3D graphene are versatile and show considerable promise as electrode materials for supercapacitor applications.

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Section: Methodssupporting

confidence: 87%

Chemical adsorption of NiO nanostructures on nickel foam-graphene for supercapacitor applications

et al. 2013

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“…[ 98 ] Among these conductive materials, graphene is an emerging conductive material because of its extraordinary properties such as electrical conductivity, exceptionally high specifi c surface area, and electrochemical potential window. [ 99 ] It has been demonstrated that graphene-based substrates are not only biocompatible but also can improve neural cell growth. When investigate the effects of graphene on the electrical activity of neuronal networks, the study of graphene for tissue regeneration has provided further outstanding surprises.…”

Section: Improving Neural Electrical Performance After Electrical Stimentioning

confidence: 99%

Graphene‐Based Materials in Regenerative Medicine

Ding

Liu

Fan

2015

Adv Healthcare Materials

141

102

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Graphene possesses many unique properties such as two-dimensional planar structure, super conductivity, chemical and mechanical stability, large surface area, and good biocompatibility. In the past few years, graphene-based materials have risen as a shining star on the path of researchers seeking new materials for future regenerative medicine. Herein, the recent research advances made in graphene-based materials mostly utilizing the mechanical and electrical properties of graphene are described. The most exciting findings addressing the impact of graphene-based materials on regenerative medicine are highlighted, with particular emphasis on their applications including nerve, bone, cartilage, skeletal muscle, cardiac, skin, adipose tissue regeneration, and their effects on the induced pluripotent stem cells. Future perspectives and emerging challenges are also addressed in this Review article.

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“…Determination of dopamine, ascorbic acid and uric acid concentration is crucial, because the concentration level of these molecules in human body is closely linked to the health status. Graphene film-based electrodes as electrochemical sensors have shown high performance towards the analysis of dopamine, ascorbic acid and uric acid [104][105][106][107][108][109][110]. For example, Xia and co-workers developed a multifunctional electrochemical sensor based on N-doped graphene (NG), which can be used to simultaneously determine AA, DA and UA [105].…”

Section: Electrochemical Sensors Technologymentioning

confidence: 99%

Graphene-Paper Based Electrochemical Sensors

Zhang¹,

Halder²,

Cao³

et al. 2017

Electrochemical Sensors Technology

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Graphene paper as a new form of graphene-supported nanomaterials has received worldwide attention since its first report in 2007. Due to their high flexibility, lightweight and good electrical conductivity, graphene papers have demonstrated the promising potential for crucial applications in electrochemical sensors and energy technologies among others. In this chapter, we present some examples to overview recent advances in the research and development of two-dimensional (2D) graphene papers as new materials for electrochemical sensors. The chapter covers the design, fabrication, functionalization and application evaluations of graphene papers. We first summarize the mainstream methods for fabrication of graphene papers/membranes, with the focus on chemical vapour deposition techniques and solution-processing assembly approaches. A large portion of this chapter is then devoted to the highlights of specific functionalization of graphene papers with polymer and nanoscale functional building blocks for electrochemical-sensing purposes. In terms of electrochemical-sensing applications, the emphasis is on enzyme-graphene and nanoparticle-graphene paper-based systems for the detection of glucose. We finally conclude this chapter with brief remarks and outlook.

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3D Graphene Foam as a Monolithic and Macroporous Carbon Electrode for Electrochemical Sensing

Cited by 298 publications

References 34 publications

Chemical adsorption of NiO nanostructures on nickel foam-graphene for supercapacitor applications

Chemical adsorption of NiO nanostructures on nickel foam-graphene for supercapacitor applications

Graphene‐Based Materials in Regenerative Medicine

Graphene-Paper Based Electrochemical Sensors

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