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JournalISSN: 0008-6223


About: Carbon is an academic journal. The journal publishes majorly in the area(s): Carbon & Graphene. It has an ISSN identifier of 0008-6223. Over the lifetime, 21830 publication(s) have been published receiving 980610 citation(s). The journal is also known as: element 6 & C. more

Topics: Carbon, Graphene, Carbon nanotube more
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Journal ArticleDOI
01 Jun 2007-Carbon
Abstract: Reduction of a colloidal suspension of exfoliated graphene oxide sheets in water with hydrazine hydrate results in their aggregation and subsequent formation of a high-surface-area carbon material which consists of thin graphene-based sheets. The reduced material was characterized by elemental analysis, thermo-gravimetric analysis, scanning electron microscopy, X-ray photoelectron spectroscopy, NMR spectroscopy, Raman spectroscopy, and by electrical conductivity measurements. more

11,809 citations

Journal ArticleDOI
01 May 2001-Carbon
Abstract: The electrochemical storage of energy in various carbon materials (activated carbons, aerogels, xerogels, nanostructures) used as capacitor electrodes is considered. Different types of capacitors with a pure electrostatic attraction and/or pseudocapacitance effects are presented. Their performance in various electrolytes is studied taking into account the different range of operating voltage (1 V for aqueous and 3 V for aprotic solutions). Trials are undertaken for estimating the role of micro and mesopores during charging the electrical double layer in both kinds of electrolytic solutions for which the electrical conductivity and the size of solvated ions are different. The effect of pseudocapacitance for maximising the total capacitance is especially documented. Carbons chemically modified by a strong oxidation treatment represent a very well defined region of pseudocapacitance properties due to the Faradaic redox reactions of their rich surface functionality. Conducting polymers (polyaniline, polypyrrole, polythiophene derivatives) and oxidised metallic particles (Ru, Mn, Co,…) deposited on the carbons also participate in the enhancement of the final capacity through fast faradaic pseudocapacitance effects. Evaluation of capacitor performance by different techniques, e.g. voltammetry, impedance spectroscopy, charge/discharge characteristics is also discussed. more

3,809 citations

Journal ArticleDOI
Songfeng Pei1, Hui-Ming Cheng1Institutions (1)
01 Aug 2012-Carbon
Abstract: Graphene has attracted great interest for its excellent mechanical, electrical, thermal and optical properties. It can be produced by micro-mechanical exfoliation of highly ordered pyrolytic graphite, epitaxial growth, chemical vapor deposition, and the reduction of graphene oxide (GO). The first three methods can produce graphene with a relatively perfect structure and excellent properties, while in comparison, GO has two important characteristics: (1) it can be produced using inexpensive graphite as raw material by cost-effective chemical methods with a high yield, and (2) it is highly hydrophilic and can form stable aqueous colloids to facilitate the assembly of macroscopic structures by simple and cheap solution processes, both of which are important to the large-scale uses of graphene. A key topic in the research and applications of GO is the reduction, which partly restores the structure and properties of graphene. Different reduction processes result in different properties of reduced GO (rGO), which in turn affect the final performance of materials or devices composed of rGO. In this contribution, we review the state-of-art status of the reduction of GO on both techniques and mechanisms. The development in this field will speed the applications of graphene. (C) 2011 Elsevier Ltd. All rights reserved. more

3,609 citations

Journal ArticleDOI
01 Aug 2006-Carbon
Abstract: The superlative mechanical properties of carbon nanotubes make them the filler material of choice for composite reinforcement. In this paper we review the progress to date in the field of mechanical reinforcement of polymers using nanotubes. Initially, the basics of fibre reinforced composites are introduced and the prerequisites for successful reinforcement discussed. The effectiveness of different processing methods is compared and the state of the art demonstrated. In addition we discuss the levels of reinforcement that have actually been achieved. While the focus will be on enhancement of Young’s modulus we will also discuss enhancement of strength and toughness. Finally we compare and tabulate these results. This leads to a discussion of the most promising processing methods for mechanical reinforcement and the outlook for the future. more

3,534 citations

Journal ArticleDOI
Dongxing Yang1, Aruna Velamakanni1, Gulay Bozoklu2, Sungjin Park1  +7 moreInstitutions (4)
01 Jan 2009-Carbon
Abstract: Several nanometer-thick graphene oxide films deposited on silicon nitride-on silicon substrates were exposed to nine different heat treatments (three in Argon, three in Argon and Hydrogen, and three in ultra-high vacuum), and also a film was held at 70 °C while being exposed to a vapor from hydrazine monohydrate. The films were characterized with atomic force microscopy to obtain local thickness and variation in thickness over extended regions. X-ray photoelectron spectroscopy was used to measure significant reduction of the oxygen content of the films; heating in ultra-high vacuum was particularly effective. The overtone region of the Raman spectrum was used, for the first time, to provide a “fingerprint” of changing oxygen content. more

2,720 citations

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Journal's top 5 most impactful authors

Isao Mochida

165 papers, 5.9K citations

D.D.L. Chung

119 papers, 4.6K citations

Morinobu Endo

116 papers, 5.6K citations

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