Arc Discharge Carbon Nanoonions Purification by Liquid-Liquid Extraction

Frank J. Chao-Mujica; Juan G. Darias-Gonzalez; Liudy Garcia-Hernandez; Neil Torres-Figueredo; Amira Paez-Rodriguez; Lorenzo Hernandez-Tabares; J. A. I. Diaz-Gongora; Luis F. Desdin-Garcia

arXiv · 1711.09531

Arc Discharge Carbon Nanoonions Purification by Liquid-Liquid Extraction

Frank J. Chao-Mujica·Juan G. Darias-Gonzalez·Liudy Garcia-Hernandez·Neil Torres-Figueredo·Amira Paez-Rodriguez·Lorenzo Hernandez-Tabares·J. A. I. Diaz-Gongora·Luis F. Desdin-Garcia

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Abstract

Carbon nanoonions are novel carbon nanoestructures that have potential applications in fields like electronics and chemical catalysis. Here we report a very simple but effective method of purifying carbon nanoonions produced by submerged arc discharge in water based on the water-toluene liquid-liquid extraction. Purified and non-purified samples were characterized by atomic force microscopy, high resolution transmission electronic microscopy and Brunauer-Emmett-Teller gas adsorption isotherms method. Microscopy results showed a good purification and allowed the assessment of the particles diameter distribution. Specific surface area was measured showing a great increment from (14.7 +- 0.3) m2/g for the non-purified sample to (170 +- 3) m2/g for the purified sample. Average particles diameter was also assessed from the adsorption isotherms; the diameter values obtained by the three techniques were in good agreement being between 20 to 30 nm.

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Frank J. Chao-Mujica, Juan G. Darias-Gonzalez, Liudy Garcia-Hernandez, Neil Torres-Figueredo, Amira Paez-Rodriguez, Lorenzo Hernandez-Tabares, J. A. I. Diaz-Gongora, Luis F. Desdin-Garcia. 2017-11-27. Arc Discharge Carbon Nanoonions Purification by Liquid-Liquid Extraction. https://arxiv.org/abs/1711.09531

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