Waving potential in graphene

Yin, Jun; Zhang, Zhuhua; Li, Xuemei; Yu, Jie; Zhou, Jianxin; Chang, Yaqing; Guo, Wei

doi:10.1038/ncomms4582

Cited by 308 publications

(318 citation statements)

References 30 publications

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“…[17] Since an onlinear response of the induced voltage to the flowing velocityw as observed, momentum transfer and streaming potentialm odels could not be used to interprett he experimental results. [20] Unlike the previous work where the graphene was completely immersedi nt he water,h ere the fluidic nanogenerator was only partly immersed, indicating ad ifferent workingm echanism. But the flowing voltage generation of the graphene was questioned in the next year.…”

Section: Nanogenerators Based On Graphenementioning

confidence: 82%

Generating Electricity from Water through Carbon Nanomaterials

Chen

Peng

2018

Chemistry A European J

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Over the past ten years, electricity generation from water in carbon-based materials has aroused increasing interest. Water-induced mechanical-to-electrical conversion has been discovered in carbon nanomaterials, including carbon nanotubes and graphene, through the interaction with flowing water as well as moisture. In this Concept article, we focus on the basic principles of electric energy harvesting from flowing water through carbon nanomaterials, and summarize the material modification and structural design of these nanogenerators. The current challenges and potential applications of power conversion with carbon nanomaterials are finally highlighted.

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Section: Nanogenerators Based On Graphenementioning

confidence: 82%

Generating Electricity from Water through Carbon Nanomaterials

Chen

Peng

2018

Chemistry A European J

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“…This result was attributed to the absence of molecular reorientation on graphene with a chemically homogenous surface. Recently, Yin et al showed that the droplets of ionic liquid can easily slide on a graphene surface [86] and, in a much more interesting result, they found that the movement of the liquid−solid−gas three-phase boundary on a graphene surface can generate electricity [86,87]. All these results suggest that graphene is a promising material to construct efficient and intelligent channels for liquid flow.…”

Section: Frictional Interaction Between Liquid and 2d Materialsmentioning

confidence: 99%

Friction of low-dimensional nanomaterial systems

et al. 2014

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When material dimensions are reduced to the nanoscale, exceptional physical mechanics properties can be obtained that differ significantly from the corresponding bulk materials. Here we review the physical mechanics of the friction of low-dimensional nanomaterials, including zero-dimensional nanoparticles, onedimensional multiwalled nanotubes and nanowires, and two-dimensional nanomaterials-such as graphene, hexagonal boron nitride (h-BN), and transition-metal dichalcogenides-as well as topological insulators. Nanoparticles between solid surfaces can serve as rolling and sliding lubrication, while the interlayer friction of multiwalled nanotubes can be ultralow or significantly high and sensitive to interwall spacing and chirality matching, as well as the tube materials. The interwall friction can be several orders of magnitude higher in binary polarized h-BN tubes than in carbon nanotubes mainly because of wall buckling. Furthermore, current extensive studies on two-dimensional nanomaterials are comprehensively reviewed herein. In contrast to their bulk materials that serve as traditional dry lubricants (e.g., graphite, bulk h-BN, and MoS 2 ), large-area highquality monolayered two-dimensional nanomaterials can serve as single-atom-thick coatings that minimize friction and wear. In addition, by appropriately tuning the surface properties, these materials have shown great promise for creating energy-efficient self-powered electro-opto-magneto-mechanical nanosystems. State-of-theart experimental and theoretical methods to characterize friction in nanomaterials are also introduced.

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“…However, the dispersion was not stable (easily coagulate) due to the fact that the graphene may be slightly charged in NaCl aqueous solution (Figure S8, Supporting Information). This phenomenon may be closely related with the selective adsorption of Na ions . Due to its uniquely charged feature, the graphene prepared in the present method can be used as adsorbent for the removal of anionic and cationic dye molecules.…”

Section: Resultsmentioning

confidence: 79%

Direct Synthesis of Few‐Layer Graphene on NaCl Crystals

Shi

Chen

et al. 2015

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Chemical vapor deposition is used to synthesize few-layer graphene on micro crystalline sodium chloride (NaCl) powder. The water-soluble nature of NaCl makes it convenient to produce free standing graphene layers via a facile and low-cost approach. Unlike traditional metal-catalyzed or oxygen-aided growth, the micron-size NaCl crystal planes play an important role in the nucleation and growth of few-layer graphene. Moreover, the possibility of synthesizing cuboidal graphene is also demonstrated in the present approach for the first time. Raman spectroscopy, optical microscopy, scanning electron microscopy, transmission electron microscopy, and atomic force microscopy are used to evaluate the quality and structure of the few-layer graphene along with cuboidal graphene obtained in this process. The few-layer graphene synthesized using the present method has an adsorption ability for anionic and cationic dye molecules in water. The present synthesis method may pave a facile way for manufacturing few-layer graphene on a large scale.

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Waving potential in graphene

Cited by 308 publications

References 30 publications

Generating Electricity from Water through Carbon Nanomaterials

Generating Electricity from Water through Carbon Nanomaterials

Friction of low-dimensional nanomaterial systems

Direct Synthesis of Few‐Layer Graphene on NaCl Crystals

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