For Publishers
DiscoveryMetadataPeer reviewHostingPublishing
For Researchers
JoinPublishReviewCollect
Register
Blog
About
Search
Advanced search
My ScienceOpen
Search
For Publishers
For Researchers
Blog
About
289
views
26
references
 Top references
cited by
18
    
0 reviews
 Review
0
comments
 Comment
0
recommends
+1 Recommend
0 collections
    0
    shares
      491
      similar
       All similar
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Reduced graphene oxide aerogel with high-rate supercapacitive performance in aqueous electrolytes

      research-article

      Read this article at

      ScienceOpenPublisherPMC
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Reduced graphene oxide aerogel (RGOA) is synthesized successfully through a simultaneous self-assembly and reduction process using hypophosphorous acid and I 2 as reductant. Nitrogen sorption analysis shows that the Brunauer-Emmett-Teller surface area of RGOA could reach as high as 830 m 2 g −1, which is the largest value ever reported for graphene-based aerogels obtained through the simultaneous self-assembly and reduction strategy. The as-prepared RGOA is characterized by a variety of means such as scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Raman spectroscopy, and X-ray photoelectron spectroscopy. Electrochemical tests show that RGOA exhibits a high-rate supercapacitive performance in aqueous electrolytes. The specific capacitance of RGOA is calculated to be 211.8 and 278.6 F g −1 in KOH and H 2SO 4 electrolytes, respectively. The perfect supercapacitive performance of RGOA is ascribed to its three-dimensional structure and the existence of oxygen-containing groups.

          Related collections

          Most cited references26

          • Record: found
          • Abstract: not found
          • Article: not found

          Deoxygenation of Exfoliated Graphite Oxide under Alkaline Conditions: A Green Route to Graphene Preparation

          Xiaobin Fan, Wenchao Peng, Yang Li … (2008)
          Article 0 comments Cited 379 times – based on 0 reviews     Review now
            Bookmark
            • Record: found
            • Abstract: found
            • Article: not found

            Freestanding three-dimensional graphene/MnO2 composite networks as ultralight and flexible supercapacitor electrodes.

            Yongmin He, Wanjun Chen, Xiaodong Li … (2013)
            A lightweight, flexible, and highly efficient energy management strategy is needed for flexible energy-storage devices to meet a rapidly growing demand. Graphene-based flexible supercapacitors are one of the most promising candidates because of their intriguing features. In this report, we describe the use of freestanding, lightweight (0.75 mg/cm(2)), ultrathin (<200 μm), highly conductive (55 S/cm), and flexible three-dimensional (3D) graphene networks, loaded with MnO(2) by electrodeposition, as the electrodes of a flexible supercapacitor. It was found that the 3D graphene networks showed an ideal supporter for active materials and permitted a large MnO(2) mass loading of 9.8 mg/cm(2) (~92.9% of the mass of the entire electrode), leading to a high area capacitance of 1.42 F/cm(2) at a scan rate of 2 mV/s. With a view to practical applications, we have further optimized the MnO(2) content with respect to the entire electrode and achieved a maximum specific capacitance of 130 F/g. In addition, we have also explored the excellent electrochemical performance of a symmetrical supercapacitor (of weight less than 10 mg and thickness ~0.8 mm) consisting of a sandwich structure of two pieces of 3D graphene/MnO(2) composite network separated by a membrane and encapsulated in polyethylene terephthalate (PET) membranes. This research might provide a method for flexible, lightweight, high-performance, low-cost, and environmentally friendly materials used in energy conversion and storage systems for the effective use of renewable energy.
            Article 0 comments Cited 346 times – based on 0 reviews     Review now
              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              Raman spectroscopy of amorphous, nanostructured, diamond-like carbon, and nanodiamond.

              Andrea Ferrari, John Robertson (2004)
              Raman spectroscopy is a standard characterization technique for any carbon system. Here we review the Raman spectra of amorphous, nanostructured, diamond-like carbon and nanodiamond. We show how to use resonant Raman spectroscopy to determine structure and composition of carbon films with and without nitrogen. The measured spectra change with varying excitation energy. By visible and ultraviolet excitation measurements, the G peak dispersion can be derived and correlated with key parameters, such as density, sp(3) content, elastic constants and chemical composition. We then discuss the assignment of the peaks at 1150 and 1480 cm(-1) often observed in nanodiamond. We review the resonant Raman, isotope substitution and annealing experiments, which lead to the assignment of these peaks to trans-polyacetylene.
              Article 0 comments Cited 338 times – based on 0 reviews     Review now
                Bookmark
                All references

                Author and article information

                Journal
                Journal ID (nlm-ta): Nanoscale Res Lett
                Journal ID (iso-abbrev): Nanoscale Res Lett
                Title: Nanoscale Research Letters
                Publisher: Springer
                ISSN (Print): 1931-7573
                ISSN (Electronic): 1556-276X
                Publication date Collection: 2013
                Publication date (Electronic): 21 May 2013
                Volume: 8
                Issue: 1
                Page: 247
                Affiliations
                [1 ]School of Chemical Engineering, Shandong University of Technology, Zibo 255049, People’s Republic of China
                [2 ]School of Science, State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, People’s Republic of China
                Article
                Publisher ID: 1556-276X-8-247
                DOI: 10.1186/1556-276X-8-247
                PMC ID: 3686611
                PubMed ID: 23692674
                SO-VID: 082ddc50-6d41-461d-bbd8-b009490ffdfa
                Copyright © Copyright ©2013 Si et al.; licensee Springer.
                License:

                This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                Date received : 6 April 2013
                Date accepted : 7 May 2013
                Categories
                Subject: Nano Express

                ScienceOpen disciplines: Nanomaterials
                Keywords: supercapacitor,reduced graphene oxide aerogel,current density,cyclic voltammetry
                Data availability:
                ScienceOpen disciplines: Nanomaterials
                Keywords: supercapacitor, reduced graphene oxide aerogel, current density, cyclic voltammetry

                Comments

                Comment on this article

                scite_

                Similar content491

                See all similar

                Cited by18

                See all cited by

                Most referenced authors735

                See all reference authors