There is intense interest in graphene in fields such as physics, chemistry, and materials science, among others. Interest in graphene's exceptional physical properties, chemical tunability, and potential for applications has generated thousands of publications and an accelerating pace of research, making review of such research timely. Here is an overview of the synthesis, properties, and applications of graphene and related materials (primarily, graphite oxide and its colloidal suspensions and materials made from them), from a materials science perspective.

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Graphene and Graphene Oxide: Synthesis, Properties, and Applications

Approaches, Derivatives and Applications Vasilios Georgakilas,† Michal Otyepka,‡ Athanasios B. Bourlinos,‡ Vimlesh Chandra, Namdong Kim, K. Christian Kemp, Pavel Hobza,‡,§,⊥ Radek Zboril,*,‡ and Kwang S. Kim* †Institute of Materials Science, NCSR “Demokritos”, Ag. Paraskevi Attikis, 15310 Athens, Greece ‡Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacky University Olomouc, 17. listopadu 12, 771 46 Olomouc, Czech Republic Center for Superfunctional Materials, Department of Chemistry, Pohang University of Science and Technology, San 31, Hyojadong, Namgu, Pohang 790-784, Korea Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, v.v.i., Flemingovo naḿ. 2, 166 10 Prague 6, Czech Republic

Functionalization of Graphene: Covalent and Non-Covalent Approaches, Derivatives and Applications

Graphene based materials: Past, present and future

Recent advances in graphene based polymer composites

Graphene has emerged as a subject of enormous scientific interest due to its exceptional electron transport, mechanical properties, and high surface area. When incorporated appropriately, these atomically thin carbon sheets can significantly improve physical properties of host polymers at extremely small loading. We first review production routes to exfoliated graphite with an emphasis on top-down strategies starting from graphite oxide, including advantages and disadvantages of each method. Then solvent- and melt-based strategies to disperse chemically or thermally reduced graphene oxide in polymers are discussed. Analytical techniques for characterizing particle dimensions, surface characteristics, and dispersion in matrix polymers are also introduced. We summarize electrical, thermal, mechanical, and gas barrier properties of the graphene/polymer nanocomposites. We conclude this review listing current challenges associated with processing and scalability of graphene composites and future perspectives f...

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Graphene/Polymer Nanocomposites

Multiresidue Pesticide Analysis in Cabbage and Cauliflower Using Gas Chromatography Tandem Mass Spectrometry (GC‐MS/MS)

Effect of hydroxy gas addition on performance and exhaust emissions in variable compression spark ignition engine

The exclusive formation of 1-substitutcd-6-a-oximino-ethylindoles 3a-d from the reaction of 3,6-diacetylindoles with hydroxylamine reveals the chemoselectivity of C 6 -acetyl function over that of C 3 -acetyl function towards the nucleophilic attack of hydroxylamine. These monooximes 3a-d are stirred with methanesulphonyl chloride in dry pyridine at room temperature to give the novel 5-substituted-7-acetyl-3,6-dimelhyloxazolo[4,5-f]indoles 5a-d in good yields. The structures of all these newly synthesised compounds have been confirmed by their spectral and analytical data and they have been screened for antibacterial and antifungal activities.

Synthesis and Antimicrobial Activity of Novel Linearly Fused 5-Substituted-7-acetyl-2,6-dimethyloxazolo[4,5-f]indoles.

Ternary structured magnesium cobalt oxide/graphene/polycarbazole nanohybrids for high performance electrochemical supercapacitors

In this study electricity generation was evaluated in a two chambered microbial fuel cell. Performance of microbial fuel cells using two bacteria, Klebsiella pneumoniae and Bacillus coagulans and using three different electrodes namely graphite blocks, carbon cloth and graphite sheet was studied. The device was operated under anaerobic condition in the anode chamber and parameters were recorded for a period of 48 hours. The performance of MFC was analyzed by the measurement of open circuit voltage, polarization curves, impedance curves and cyclic voltammetry. Among different combinations of electrode tested, carbon cloth electrode produced high power density (80 mW/m2). Graphite block gave much high power compared to sheet. Finally, performance was compared with Shewanellaputrefaciens. The current study explores the applicability of carbon electrode for MFC applications.

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Anjanapura V. Raghu

Papers

Multiresidue Pesticide Analysis in Cabbage and Cauliflower Using Gas Chromatography Tandem Mass Spectrometry (GC‐MS/MS)

Effect of hydroxy gas addition on performance and exhaust emissions in variable compression spark ignition engine

Synthesis and Antimicrobial Activity of Novel Linearly Fused 5-Substituted-7-acetyl-2,6-dimethyloxazolo[4,5-f]indoles.

Ternary structured magnesium cobalt oxide/graphene/polycarbazole nanohybrids for high performance electrochemical supercapacitors

Influence of carbon based electrodes on the performance of the microbial fuel cell