{"id":3207,"date":"2020-03-13T09:31:28","date_gmt":"2020-03-13T09:31:28","guid":{"rendered":"https:\/\/www.gyanvihar.org\/journals\/?p=3207"},"modified":"2020-03-13T09:31:28","modified_gmt":"2020-03-13T09:31:28","slug":"synthesis-and-characterization-of-graphene-oxide-go-for-cathode-material-in-li-s-battery","status":"publish","type":"post","link":"https:\/\/www.gyanvihar.org\/journals\/synthesis-and-characterization-of-graphene-oxide-go-for-cathode-material-in-li-s-battery\/","title":{"rendered":"SYNTHESIS AND CHARACTERIZATION OF GRAPHENE OXIDE (GO) FOR CATHODE MATERIAL IN LI-S BATTERY"},"content":{"rendered":"

Volume 6, Issue 1, 2020, pp. 19-23<\/em><\/strong><\/p>\n

Tarun Patodia1,2<\/sup>, S. Katyayan1<\/sup>, Balram Tripathi2, a)<\/sup><\/h2>\n

\u00a0<\/strong>1<\/sup><\/strong> Department of Physics, Suresh Gyan Vihar University, Jaipur<\/strong>.
\n<\/strong>2<\/sup><\/strong>Department of Physics, S.S. Jain Subodh P.G.(Auto.) College, Rambagh Circle, Jaipur<\/strong><\/p>\n

a)<\/sup><\/strong>balramtripathi1181@gmail.com<\/a><\/strong><\/p>\n

\n

ABSTRACT<\/strong><\/p>\n

In this study, GO has been synthesized by Hummer’s technique. XRD, FESEM, Raman and FT-IR spectrophotometer have been used for characterization of GO. XRD spectra confirms crystalline structure of GO. Raman spectra confirms the electronic structure of GO. FESEM image showing layered surface of GO. Due to its dramatic properties GO would be useful as cathode material for Li-S battery.<\/p>\n

Keywords:<\/strong> Graphene oxide, Layered surface, Cathode<\/p>\n

1.INTRODUCTION<\/strong><\/p>\n

Graphene has a remarkable molecule thick structure, magnificent conducting, mechanical, and warm characteristics [1]. Subsequently, investigation for its use in energy storage devices & gadgets, catalysis, sensors, and vitality transformation and capacity and so on. For these reasons, the large scale manufacturing of such materials at minimum expenses is fundamental prerequisites [2-6].<\/p>\n

\u00a0Moreover, GO is processable and can be manufactured or self-collected into naturally visible materials having controlled structures for pragmatic applications [7]. GO is the forerunner of rGO; therefore, it assists in controlling the different characteristics of rGO [8-13]. Schafhaeul discussed GO in 1840 [14] followed the same by Brodie in 1859 [15]. In this technique, graphite was mixedwith KClO3<\/sub> and responded in raging HNO3<\/sub> at 60\u00baCelsius for 92 hrs. Staudenmaier modified Brodie technique by supplanting around two thirds of raging HNO3<\/sub> with concentrated H2<\/sub>SO4<\/sub> and including KClO3<\/sub> in different parts. This little alteration empowers the general response in a solitary vessel; along these lines rearranging the blend strategy for 4 days [16]. The most significant technique for the combination of GO was created by Hummers what’s more, Offeman in 1958 (Hummers strategy) [17]. In this method, graphite oxidation was accomplished by treatment of graphite powders in a concentrated H2<\/sub>SO4<\/sub> arrangement containing KMnO4<\/sub>, 0.5 equivalent load of NaNO3<\/sub>. The Hummers strategy, at least, has three significant points of interest over past strategies as the response can be finished inside a couple hours. KClO3<\/sub> was supplanted by KMnO4 <\/sub>to improve the response security, staying away from the development of unstable ClO2<\/sub> and the utilization of NaNO3<\/sub> as opposed to smoldering HNO3<\/sub> wipes out the arrangement of corrosive mist [18].<\/p>\n

For a protected situation, it is required to give more consideration for the advancement of lithium sulfur battery having high energy density and good cycle life. Presently, carbon materials have been progressively tried for upgradation in cathode materials for lithium sulfur batteries [19-20]. Sheets of graphene oxide comprise carbon molecules having sp3<\/sup> arrangement mostly and is a coated compound improved by C, H, O in factor proportion to make GO hydrophilic and henceforth frames watery colloids by straightforward arrangement procedure to encourage a gathering of naturally visible structure [21-22]. It is likewise nature biocompatible utilized in vitality capacity, bio sensor and malady discovery and so forth. Conduction capacity of GO relies upon oxidation and amalgamation in compound. Likewise, epoxide bunches containing oxygen permit GO to scattered in water and other natural solvents. Sheets of GO are precisely solid films having a huge number of little pieces. Functionalization of GO can be done from multiple points of view contingent upon the wanted application like additives for electrode material of Lithium sulfur batteries, fuel cell, sensors or as medication conveyance material [23-25].<\/p>\n

Here we report modified Hummer\u2019s method using charcoal activated in place of graphite flakes for synthesis of GO having different stirring time and temperature. Further X-ray diffraction analysis, FT-IR, Raman spectroscopy, and FESEM were used for characterization of synthesised graphene oxide.<\/p>\n

    \n
  1. EXPERIMENTAL SECTION<\/strong><\/li>\n<\/ol>\n

    \u00a0<\/strong>2.1. Materials<\/strong><\/p>\n

    Charcoal activated (Rankem), Sulphuric acid (98.08%, Fisher scientific), Sodium nitrate (Rankem), Ice cubes, Potassium permanganate (>99%, CDH), distilled water, Hydrochloric acid (35.0%, Rankem) and hydrogen peroxide (30% Rankem) used for synthesis of Graphene oxide.<\/p>\n

    2.2. GO Preparation<\/strong><\/p>\n

    Hummer\u2019s method [26-27] was used in which 3 gm Charcoal activated powder was mixed into 50mL concentrated sulphuric acid and 2gm of sodium nitrate in a 1000mL flask placed in an ice-bath (0-8\u00baC) with 2 hrs stirring with help of magnetic stirrer, then\u00a0 6 gm of potassium permanganate (KMnO4<\/sub>) as a oxidising agent was added moderately to suspension obtained in such a manner that temp should not be increased more than 10\u00baC and stir the suspension for 1 hrs and ice bath is then removed\u00a0 and kept stirring for 2hrs with temp below 35\u00baC until it becomes pasty brownish.100mL distilled water was then loaded into suspension and heated at 95\u00baC for 30 minutes as a result brown colour occurs again deionized water is mixed in the suspension and stirring is further allowed for half hour. Finally, 20 mL H2<\/sub>O2<\/sub> was added and stirred for 1 hr appearance of yellow colour indicates the formation of graphene oxide and washed with distilled water and hydrochloric acid to remove metal impurities several times till pH value reaches 7 and dried under vacuum for 24 hrs.<\/p>\n

      \n
    1. RESULTS AND DISCUSSION<\/strong><\/li>\n<\/ol>\n

      3.1. X-Ray Diffraction (XRD)<\/strong><\/p>\n

      \"\"<\/p>\n

      Figure 1. XRD spectrum of GO<\/strong><\/p>\n

      \u00a0<\/strong>XRD plot of synthesized GO has been recorded using panalytical\u2019s powder X-Ray diffractometer having CuK\u03b1 as source (\u03bb=1.5406 \u0202) within 2\u019f=5\u00b0<\/sup>-40\u00b0 at the scan speed 1\u00b0\/min. Powder X-ray software has been used for analysing the structure and Debye Scherer [28] formula(eq.1) used to calculate the crystallite size which on further calculation comes out 30 nm and d-spacing obtained 8.6135nm with help of Braggs law.<\/p>\n

      \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0D=k\u03bb\/\u03b2cos\u03b8\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026………………\u2026.(1)<\/p>\n

      Where k is scherrer constant (0.9), \u03bb is X-ray wavelength (.15406nm), \u03b8 is Bragg diffraction angle, \u03b2 is FWHM of the XRD peak at diffraction angle \u03b8.<\/p>\n

      Occurrence of hydroxyl, epoxy and carbonyl groups in GO [29]. GO synthesised showed a very strong peak at 2 = 10.9\u00ba, which is in agreement with previous studies [30-31]. XRD results initially confirms synthesis of GO.<\/p>\n

      3.2. Fourier Transform Infrared Spectroscopy (FT-IR) Analysis<\/strong><\/p>\n

      \"\"<\/p>\n

      Figure 2. FT-IR spectrum of GO<\/strong><\/p>\n

      FT-IR measurements have been performed by using Bruker alpha spectrometer with Zinc Selenide crystal to investigate the functional and structural groups. Results obtained showed adsorption bands for the aromatic C=C (1531 cm\u22121<\/sup>), carboxyl C=O (1689 cm\u22121<\/sup>), alkoxy C\u2013O (1027 cm\u22121<\/sup>), epoxy C\u2013O (1173 cm\u22121<\/sup>), and hydroxy \u2013OH (3391 cm\u22121<\/sup>) groups. Groups containing oxygen, such as C=O and C\u2013O, reveals that graphite has been oxidized into GO [32-37].<\/p>\n

      3.3 Raman Spectroscopy Analysis<\/strong><\/p>\n

      \"\"<\/p>\n

      Figure 3. Raman spectrum of GO<\/strong><\/p>\n

      Raman measurements have been performed in the backscattering geometry using 514.5 nm line (power5200 mW) from an argon ion laser was used for observation of structural modification via oxidation process.Fig.3 reveal two characteristic bands at 1352 cm-1<\/sup> (D band) and1590 cm-1<\/sup> (G band) for GO [38]. From plot we can observe that broadening of both bands implies that average size of sp2<\/sup> domain is more [35]. Relative intensity ratio ID<\/sub>\/IG <\/sub>obtained after oxidation is 0.56. Further GO isn’t an absolutely sp2<\/sup> framework yet an exceptionally scattered one with a critical sp3<\/sup> content. Along these lines, in spite of the standard sp2<\/sup> materials, the abatement of deformities in GO would create an expansion of the D\/G proportion. This is on the grounds that there would be more sp2<\/sup> C particles encompassing the deformities [39].<\/p>\n

      3.4 Field Emission Scanning Electron Microscope (FESEM)Analysis<\/strong><\/p>\n

      \"\"<\/strong><\/p>\n

      \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Figure 4. FE-SEM image of GO<\/strong><\/p>\n

      \n

      Surface morphology of the synthesized GO has been analysed by FE-SEM (JSM-7100F) as shown in image (Fig. 4) confirms some agglomerated layered structure of graphene oxide.<\/p>\n

        \n
      1. CONCLUSION<\/strong><\/li>\n<\/ol>\n

        The particle size of synthesized GO obtained from XRD spectrum is of the order of 30 nm. The bonding behaviour obtained from FT-IR showing the aromatic C=C (1531 cm\u22121<\/sup>), carboxyl C=O (1689 cm\u22121<\/sup>), alkoxy C\u2013O (1027 cm\u22121<\/sup>), epoxy C\u2013O (1173 cm\u22121<\/sup>), and hydroxy \u2013OH (3391 cm\u22121<\/sup>) groups. Raman spectra shows ratio of ID<\/sub>\/IG <\/sub>is of the order of 0.56. FESEM image shows ridged surface of graphene oxide. Based on these evidences authors suggests that graphene oxide would be useful as an additive material for electrode of Li-S battery.<\/p>\n

        ACKNOWLEDGEMENT<\/strong><\/p>\n

        This work is financially supported by the grant from SERB-DST New Delhi under ECR scheme (Grant No. ECR\/000655\/2017). The author would also thank to Dr. A. S. Verma (Department of Physics, BanasthaliVidyapith, India) for XRD characterization, Dr. V. Kulshrestha (Department of Physics, CSIR-Bhavnagar, India) for FESEM analysis, Dr. S. K. Jain (School of Basics Science, Manipal University Jaipur, India) for FTIR spectroscopy of the composites prepared.<\/p>\n

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            Volume 6, Issue 1, 2020, pp. 19-23 Tarun Patodia1,2, S. Katyayan1, Balram Tripathi2, a) \u00a01 Department of Physics, Suresh Gyan Vihar University, Jaipur. 2Department of Physics, S.S. Jain Subodh P.G.(Auto.) College, Rambagh Circle, Jaipur a)balramtripathi1181@gmail.com ABSTRACT In this study, GO has been synthesized by Hummer’s technique. XRD, FESEM, Raman and FT-IR spectrophotometer have been used […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18,82],"tags":[],"class_list":["post-3207","post","type-post","status-publish","format-standard","hentry","category-journal-of-environment-science-and-technology","category-volume-6-issue-1-2020-journal-of-environment-science-and-technology"],"yoast_head":"\nresearch journal - Research Journal<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.gyanvihar.org\/journals\/synthesis-and-characterization-of-graphene-oxide-go-for-cathode-material-in-li-s-battery\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SYNTHESIS AND CHARACTERIZATION OF GRAPHENE OXIDE (GO) FOR CATHODE MATERIAL IN LI-S BATTERY - research journal\" \/>\n<meta property=\"og:description\" content=\"Volume 6, Issue 1, 2020, pp. 19-23 Tarun Patodia1,2, S. Katyayan1, Balram Tripathi2, a) \u00a01 Department of Physics, Suresh Gyan Vihar University, Jaipur. 2Department of Physics, S.S. Jain Subodh P.G.(Auto.) College, Rambagh Circle, Jaipur a)balramtripathi1181@gmail.com ABSTRACT In this study, GO has been synthesized by Hummer’s technique. 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