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6 articles for “Carmen Morant”
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Research ArticleOpen accessIn the author namesSynthesis and Characterization of Cobalt, Iron and Ruthenium Catalysts for the Production of Synthetic DieselDayna M. Ortiz Rodríguez, María del C. Cotto-Maldonado, José Duconge Hernández et al.Fossil fuels are currently the world's leading source of energy. Environmental legislations, the high price of fossil fuels, the concern about the supply of these fuels and technological development, makes it necessary to search for alternative sources of energy. The production of clean liquid fuels, such as synthetic diesel from synthesis gas, by Fischer-Tropsch (FT) method, is considered a very … …American Journal of Engineering and Applied Sciences, Vol. 13, Issue 2 · 29 Apr 2020 · 7,256 accessesView PDFCite
Research ArticleOpen accessIn the author namesReversible Ionizing Radiation Sensors Based on Carbon NanotubesKenneth Fontánez, Abniel Machín, María C. Cotto et al.Vertically Aligned Carbon Nanotubes (VA-CNTs) were grown by Chemical Vapor Deposition (CVD) on a silicon substrate with alternating layers of TiN and SiO2. VA-CNTs were exposed to X-ray radiation to study the change in resistivity later. Preliminary results show an increase in the resistivity of CNTs as a function of radiation exposure time, which means that the structure responds successfully … …American Journal of Engineering and Applied Sciences, Vol. 13, Issue 1 · 3 Feb 2020 · 7,234 accessesView PDFCite
Research ArticleOpen accessIn the author namesDevelopment of Ionizing Radiation Sensors Based on Carbon NanotubesKenneth Fontánez, Abraham García, María del C Cotto-Maldonado et al.SWNTs have been efficiently grown on patterned substrates, for its subsequent application to the development of ionizing radiation sensors. SWNTs before and after exposure to X-rays were characterized by Raman and XPS spectroscopy, revealing the appearance of alterations that have been justified as possibly due to the presence of adsorbed oxygen species. These materials have been used for the fabrication … …American Journal of Engineering and Applied Sciences, Vol. 12, Issue 2 · 29 May 2019 · 7,195 accessesView PDFCite
Research ArticleOpen accessIn the author namesFenton Process for the Degradation of Methylene Blue using Different Nanostructured CatalystsMaría del C Cotto-Maldonado, José Duconge, Carmen Morant, Francisco MárquezIn many places of the world, water is a scarcity resource. The possibility of reusing water increases the relevance of developing different water treatment methods. The goal of this research was to determine if the photo-Fenton processes are efficient for the degradation of organic compounds, as a possible alternative for wastewater treatment. In order to carry out this study, different … …American Journal of Engineering and Applied Sciences, Vol. 10, Issue 2 · 19 Jul 2017 · 8,301 accessesView PDFCite
Research ArticleOpen accessIn the author namesSynthesis and Characterization of Au@TiO2 NWs and their Catalytic Activity by Water Splitting: A Comparative Study with Degussa P25Abniel Machín, María Cotto, José Ducongé et al.Different amount of gold nanoparticles (1, 3, 5, 10 wt%) were deposited on the surface of synthesized titanium oxide nanowires (TiO2 NWs) and Degussa P25 (TiO2-P25). The results evidenced the presence of small and dispersed gold particles on the surface of TiO2 NWs and TiO2-P25 and an increase in the specific surface area of all the composites. The photocatalytic activity … …American Journal of Engineering and Applied Sciences, Vol. 10, Issue 2 · 6 Jun 2017 · 8,431 accessesView PDFCite
Research ArticleOpen accessIn the author namesGraphene Synthesis by Plasma-Enhanced CVD Growth with EthanolTeresa Campo, María Cotto, Francisco Márquez et al.A modified route to synthesize graphene flakes is proposed using the Chemical Vapor Deposition (CVD) technique, by using copper substrates as supports. The carbon source used was ethanol, the synthesis temperature was 950°C and the pressure was controlled along the whole process. In this CVD synthesis process the incorporation of the carbon source was produced at low pressure and 950°C … …American Journal of Engineering and Applied Sciences, Vol. 9, Issue 3 · 27 Jul 2016 · 9,156 accessesView PDFCite