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ISSN Druckformat: 1093-3611
ISSN Online: 1940-4360
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ELECTROCHEMICAL INVESTIGATION OF THE FORMATION OF CARBON NANOTUBES IN MOLTEN SALTS
ABSTRAKT
This paper reports a molten salt electrolytic method for the economical production of carbon nanotubes/particles. The method converts a normal graphite cathode in a bath of molten LiCl, NaCl or KCl into carbon nano-tubes and other nano-particles. The cathode erosion observed after electrolysis, together with cyclic voltammetry, indicates that the conversion must have resulted from the graphite intercalation of the alkali metal that is formed at the cathode during electrolysis. In addition, the electrolytic carbon nanotubes and particles are found to be partially filled with a graphite-non-wetting material that cannot result from the known capillary effect. Logic suggests that the filled material is the cathodically formed alkali metal and therefore argues strongly that the graphite intercalation of alkali metals plays an important role in the formation of the electrolytic carbon nanotubes. An intercalation mechanism for the graphite-nanotube conversion is proposed.
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Chen George Z., Fray Derek J., Voltammetric Studies of the Oxygen-Titanium Binary System in Molten Calcium Chloride, Journal of The Electrochemical Society, 149, 11, 2002. Crossref
-
Xu Qian, Schwandt Carsten, Chen George Z, Fray Derek J, Electrochemical investigation of lithium intercalation into graphite from molten lithium chloride, Journal of Electroanalytical Chemistry, 530, 1-2, 2002. Crossref
-
Siambun Nancy J., Mohamed Harimi, Hu Di, Jewell Daniel, Beng Yeo K., Chen George Z., Utilisation of Carbon Dioxide for Electro-Carburisation of Mild Steel in Molten Carbonate Salts, Journal of The Electrochemical Society, 158, 11, 2011. Crossref
-
Kamali Ali Reza, Fray Derek J., Towards large scale preparation of carbon nanostructures in molten LiCl, Carbon, 77, 2014. Crossref
-
Schwandt C., Dimitrov A.T., Fray D.J., The preparation of nano-structured carbon materials by electrolysis of molten lithium chloride at graphite electrodes, Journal of Electroanalytical Chemistry, 647, 2, 2010. Crossref
-
Ijije Happiness V., Chen George Z., Electrochemical manufacturing of nanocarbons from carbon dioxide in molten alkali metal carbonate salts: roles of alkali metal cations, Advances in Manufacturing, 4, 1, 2016. Crossref
-
Choucair Mohammad, Gong Bin, Stride John A., Engineering solvothermal reactions to produce multi-walled carbon nanotubes, Journal of Nanoparticle Research, 14, 6, 2012. Crossref
-
Schwandt Carsten, Dimitrov Aleksandar T., Fray Derek J., High-yield synthesis of multi-walled carbon nanotubes from graphite by molten salt electrolysis, Carbon, 50, 3, 2012. Crossref
-
Kamali Ali Reza, Divitini Giorgio, Schwandt Carsten, Fray Derek J., Correlation between microstructure and thermokinetic characteristics of electrolytic carbon nanomaterials, Corrosion Science, 64, 2012. Crossref
-
Ge Jianbang, Wang Shuai, Hu Liwen, Zhu Jun, Jiao Shuqiang, Electrochemical deposition of carbon in LiCl–NaCl–Na2CO3 melts, Carbon, 98, 2016. Crossref
-
Kinloch Ian A, Chen George Z, Howes Joanne, Boothroyd Chris, Singh Charanjeet, Fray Derek J, Windle Alan H, Electrolytic, TEM and Raman studies on the production of carbon nanotubes in molten NaCl, Carbon, 41, 6, 2003. Crossref
-
LIU Dong-ren, LI Wang-xing, YANG Zhan-hong, QIU Shi-lin, LUO Ying-tao, Electrochemical investigation on kinetics of potassium intercalating into graphite in KF melt, Transactions of Nonferrous Metals Society of China, 21, 1, 2011. Crossref
-
Dimitrov Aleksandar T, Chen George Z, Kinloch Ian A, Fray Derek J, A feasibility study of scaling-up the electrolytic production of carbon nanotubes in molten salts, Electrochimica Acta, 48, 1, 2002. Crossref
-
Zou Xiang‐yu, Xie Hong‐wei, Zhai Yu‐chun, Lang Xiao‐chuan, Direct Synthesis of High Purity Silicon Wires by Electrorefining in Molten KF‐NaF Eutectic, Chinese Journal of Chemical Physics, 26, 1, 2013. Crossref
-
Xu Qian, Schwandt Carsten, Fray Derek J, Electrochemical investigation of lithium and tin reduction at a graphite cathode in molten chlorides, Journal of Electroanalytical Chemistry, 562, 1, 2004. Crossref
-
Das Gupta Rajshekar, Schwandt Carsten, Fray Derek J., Preparation of tin-filled carbon nanotubes and nanoparticles by molten salt electrolysis, Carbon, 70, 2014. Crossref
-
Kamali Ali Reza, Schwandt Carsten, Fray Derek J., On the oxidation of electrolytic carbon nanomaterials, Corrosion Science, 54, 2012. Crossref
-
Dimitrov Aleksandar T., Tomova Ana, Grozdanov Anita, Popovski Orce, Paunović Perica, Electrochemical production, characterization, and application of MWCNTs, Journal of Solid State Electrochemistry, 17, 2, 2013. Crossref
-
Kamali Ali Reza, Schwandt Carsten, J. Fray Derek, Effect of the graphite electrode material on the characteristics of molten salt electrolytically produced carbon nanomaterials, Materials Characterization, 62, 10, 2011. Crossref
-
Liu Dongren, Yang Zhanhong, Li Wangxing, Qiu Shilin, Luo Yingtao, Electrochemical intercalation of potassium into graphite in KF melt, Electrochimica Acta, 55, 3, 2010. Crossref
-
Terrones M., Carbon nanotubes: synthesis and properties, electronic devices and other emerging applications, International Materials Reviews, 49, 6, 2004. Crossref
-
Fray D. J., Innovative electrochemical processing using molten salts, Mineral Processing and Extractive Metallurgy, 115, 1, 2006. Crossref
-
Akinwolemiwa Bamidele, Yu Linpo, Hu Di, Jin Xianbo, Slattery John M., Chen George Z., Highlights from liquid salts for energy and materials – Faraday Discussion, Ningbo, China, 11–13 May 2016, Chemical Communications, 52, 85, 2016. Crossref
-
Rezaei Asma, Kamali Ali Reza, Green production of carbon nanomaterials in molten salts, mechanisms and applications, Diamond and Related Materials, 83, 2018. Crossref
-
Abbasloo Soodeh, Ojaghi-Ilkhchi Mehdi, Mozammel Mahdi, Reduction of Carbon Dioxide to Carbon Nanostructures in Molten Salt: The Effect of Electrolyte Composition, JOM, 71, 6, 2019. Crossref
-
Dimitrov Aleksandar T., Tomova Ana, Grozdanov Anita, Paunović Perica, Production, Purification, Characterization, and Application of CNTs, in Nanotechnological Basis for Advanced Sensors, 2011. Crossref
-
Ren Zhifeng, Lan Yucheng, Wang Yang, Growth Techniques of Carbon Nanotubes, in Aligned Carbon Nanotubes, 2012. Crossref
-
Kamali Ali Reza, Mechanisms Involved in the Electrolytic Fabrication of Carbon Nanostructures, in Green Production of Carbon Nanomaterials in Molten Salts and Applications, 2020. Crossref
-
Kamali Ali Reza, Cathodic Exfoliation of Graphite in Molten Salt Electrolytes, in Green Production of Carbon Nanomaterials in Molten Salts and Applications, 2020. Crossref
-
Terrones Mauricio, Science and Technology of the Twenty-First Century: Synthesis, Properties, and Applications of Carbon Nanotubes, Annual Review of Materials Research, 33, 1, 2003. Crossref
-
Zhao Hengpeng, Song Qiushi, Chen Denghui, Xie Hongwei, Ning Zhiqiang, Self-redox reaction of carbon in molten salt for anode materials of lithium/sodium-ion batteries, Journal of Alloys and Compounds, 909, 2022. Crossref
-
ZHOU Xin-yu, DOU Zhi-he, ZHANG Ting-an, YAN Ji-sen, YAN Jian-peng, Preparation of low-oxygen Ti powder from TiO2 through combining self-propagating high temperature synthesis and electrodeoxidation, Transactions of Nonferrous Metals Society of China, 32, 10, 2022. Crossref