Pub Date : 2020-04-17DOI: 10.5772/intechopen.92258
R. Rudrapati
Graphene research has fast-tracked exponentially since 2004 when graphene was isolated and characterized by Scotch Tape method by Geim and Novoselov and found unique electronic properties in it. Graphene is considered a promising material for industrial application based on the intensive laboratory-scale research in the fields of physics, chemistry, materials science, and engineering, over the last decade. The number of academic research publications related to various aspects of production, material properties, and applications of graphene has got increased substantially. With such a massive curiosity in graphene, it is imperious for both experts and the layman to keep up with both current graphene technology and the history of graphene technology. In the present study, focus has been given to addresses the disseminating graphene research with production, properties, and applicatory approach. The concluding remarks have been drawn from the present work.
{"title":"Graphene: Fabrication Methods, Properties, and Applications in Modern Industries","authors":"R. Rudrapati","doi":"10.5772/intechopen.92258","DOIUrl":"https://doi.org/10.5772/intechopen.92258","url":null,"abstract":"Graphene research has fast-tracked exponentially since 2004 when graphene was isolated and characterized by Scotch Tape method by Geim and Novoselov and found unique electronic properties in it. Graphene is considered a promising material for industrial application based on the intensive laboratory-scale research in the fields of physics, chemistry, materials science, and engineering, over the last decade. The number of academic research publications related to various aspects of production, material properties, and applications of graphene has got increased substantially. With such a massive curiosity in graphene, it is imperious for both experts and the layman to keep up with both current graphene technology and the history of graphene technology. In the present study, focus has been given to addresses the disseminating graphene research with production, properties, and applicatory approach. The concluding remarks have been drawn from the present work.","PeriodicalId":415101,"journal":{"name":"Graphene Production and Application","volume":"31 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133783262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-11-20DOI: 10.5772/intechopen.89685
Thiago Gabry Barbosa, A. E. F. Oliveira, A. Pereira
In this work, we described the development an electrochemical sensor based on electroreduction of graphene oxide (rGO) on a glassy carbon electrode (GCE) for simultaneous determination of l-Dopa and benserazide. For the elaboration of the GCE/rGO, the developed methodology was based on the electrochemical technique: multiple pulse amperometry (MPA). The MPA was more stable and efficient for the formation of rGO film, under optimum conditions (pH 6.00; concentration of rGO 2.00 mg mL; time 450 s; potentials −0.60, −0.70, −0.80, −0.90, −0.95, −1.00, −1.10, −1.20, and – 1.30 V). After the film was formed, the cyclic voltammetry was used to detect LD and BZ in real samples and optimized conditions 0.05 mol L PBS (pH 5.50). The linear range for the LD is 25–425 μmol L and the BZ of 5–80 μmol L. The limit of detection calculated was 17.10 (LD) and 2.99 (BZ) μmol L.
{"title":"An Electrochemical Sensor Based on Electroreduction of Graphene Oxide on a Glassy Carbon Electrode Using Multiple Pulse Amperometry for Simultaneous Determination of L-Dopa and Benserazide","authors":"Thiago Gabry Barbosa, A. E. F. Oliveira, A. Pereira","doi":"10.5772/intechopen.89685","DOIUrl":"https://doi.org/10.5772/intechopen.89685","url":null,"abstract":"In this work, we described the development an electrochemical sensor based on electroreduction of graphene oxide (rGO) on a glassy carbon electrode (GCE) for simultaneous determination of l-Dopa and benserazide. For the elaboration of the GCE/rGO, the developed methodology was based on the electrochemical technique: multiple pulse amperometry (MPA). The MPA was more stable and efficient for the formation of rGO film, under optimum conditions (pH 6.00; concentration of rGO 2.00 mg mL; time 450 s; potentials −0.60, −0.70, −0.80, −0.90, −0.95, −1.00, −1.10, −1.20, and – 1.30 V). After the film was formed, the cyclic voltammetry was used to detect LD and BZ in real samples and optimized conditions 0.05 mol L PBS (pH 5.50). The linear range for the LD is 25–425 μmol L and the BZ of 5–80 μmol L. The limit of detection calculated was 17.10 (LD) and 2.99 (BZ) μmol L.","PeriodicalId":415101,"journal":{"name":"Graphene Production and Application","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127657552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-17DOI: 10.5772/intechopen.89631
A. Dmitriev
Most existing materials may not satisfy all the fundamental requirements of modern civilization. This chapter summarizes the latest advances in the study of hybrid graphene nanocomposites and their application as thermal interface materials and some functional energy materials, in particular, for thermal management of energy and electronic devices. The main properties of hybrid graphene nanocomposites are described. The main attention is paid to the thermal properties of such materials, in particular, thermal conductivity and the possibilities of its growth due to various changes in the morphology and other properties of nanocomposites. The technology of obtaining a new nanocomposite based on mesoscopic microspheres, polymers, and graphene flakes is considered.
{"title":"Hybrid Graphene Nanocomposites: Thermal Interface Materials and Functional Energy Materials","authors":"A. Dmitriev","doi":"10.5772/intechopen.89631","DOIUrl":"https://doi.org/10.5772/intechopen.89631","url":null,"abstract":"Most existing materials may not satisfy all the fundamental requirements of modern civilization. This chapter summarizes the latest advances in the study of hybrid graphene nanocomposites and their application as thermal interface materials and some functional energy materials, in particular, for thermal management of energy and electronic devices. The main properties of hybrid graphene nanocomposites are described. The main attention is paid to the thermal properties of such materials, in particular, thermal conductivity and the possibilities of its growth due to various changes in the morphology and other properties of nanocomposites. The technology of obtaining a new nanocomposite based on mesoscopic microspheres, polymers, and graphene flakes is considered.","PeriodicalId":415101,"journal":{"name":"Graphene Production and Application","volume":"2017 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128071564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-10-15DOI: 10.5772/intechopen.89636
E. Hernández‐Hernández, P. J. Hernández‐Belmares, M. A. Ceniceros-Reyes, O. Rodríguez-Fernández, P. González‐Morones
The synthesis of graphite oxide (GrO) by oxidation of graphite has been carried out by different procedures. In this chapter, we describe a simple synthesis route based on Hummers’ method without the usage of NaNO 3 achieving nearly the same outcomes, and this methodology is directed toward high-quality scale production of GrO with similar properties compared with GrO obtained with traditional and improved Hummers’ methods. The GrO was obtained in a series of batch reactions and characterized by different techniques, and the results showed identical interlayer d-space , type and content of oxygen functionalities, and I D /I G ratio. The high reproducibility of this methodology offers an efficient alternative for the large-scale production of graphene oxide.
采用不同的工艺方法对石墨进行氧化合成氧化石墨(GrO)。在本章中，我们描述了一种基于Hummers方法的简单合成路线，而不使用NaNO 3获得几乎相同的结果，该方法旨在高质量地大规模生产GrO，与传统的和改进的Hummers方法获得的GrO具有相似的性质。通过一系列间歇反应得到GrO，并采用不同的技术对其进行了表征，结果表明层间D -空间、氧官能团的类型和含量以及I - D /I - G比相同。该方法的高重复性为氧化石墨烯的大规模生产提供了一种有效的替代方法。
{"title":"Graphite Oxide: A Simple and Reproducible Synthesis Route","authors":"E. Hernández‐Hernández, P. J. Hernández‐Belmares, M. A. Ceniceros-Reyes, O. Rodríguez-Fernández, P. González‐Morones","doi":"10.5772/intechopen.89636","DOIUrl":"https://doi.org/10.5772/intechopen.89636","url":null,"abstract":"The synthesis of graphite oxide (GrO) by oxidation of graphite has been carried out by different procedures. In this chapter, we describe a simple synthesis route based on Hummers’ method without the usage of NaNO 3 achieving nearly the same outcomes, and this methodology is directed toward high-quality scale production of GrO with similar properties compared with GrO obtained with traditional and improved Hummers’ methods. The GrO was obtained in a series of batch reactions and characterized by different techniques, and the results showed identical interlayer d-space , type and content of oxygen functionalities, and I D /I G ratio. The high reproducibility of this methodology offers an efficient alternative for the large-scale production of graphene oxide.","PeriodicalId":415101,"journal":{"name":"Graphene Production and Application","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123727235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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