Valorización de CO2 por conversión electrocatalítica con catalizadores bimetálicos usando como soporte grafeno, nanotubos de carbón, carbón activo y negros de carbón.
| dc.contributor.advisor | López Suarez, Franz Edwin | |
| dc.coverage.spatial | Bogotá D.C., Colombia | spa |
| dc.creator | Peña González, Laura Vanessa | |
| dc.creator | Vargas Pinto, Heidy Viviana | |
| dc.date.accessioned | 2019-08-08T15:07:44Z | |
| dc.date.available | 2019-08-08T15:07:44Z | |
| dc.date.created | 2019 | |
| dc.description.abstract | La conversión electroquímica de CO2 a hidrocarburos es una de las propuestas más tentadoras actualmente para la reducción de este gas en el medio ambiente (Centi, Perathoner, Wine, & Gangeri, 2007). Sin embargo, es poco eficiente debido al alto costo energético que se necesita. Debido a esto, se investiga la manera de implementar catalizadores que mejoren la eficiencia de la conversión por medio de celdas electroquímicas. En este estudio se sintetizaron electrocatalizadores de cobre y cobalto usando como soporte grafeno reducido (RG), fabricado a partir de grafito electroquímico. En la síntesis de RG se utilizó el método de Hummer modificado para el proceso de oxidación [(Centi, Quadrelli, & Perathoner, 2013)]. Estos soportes se evaluaron a través de voltametría cíclica y se caracterizaron por medio de SEM, TG, DRX y RAMAN. Obteniéndose el comportamiento electroquímico y su conductividad, así como sus características físico – químicas con el objetivo de analizar su viabilidad como soporte de los electrocatalizadores. Posteriormente, se sintetizaron los electrocatalizadores depositando los metales por medio de una impregnación humedad incipiente. Los electro-catalizadores fueron caracterizados a partir de métodos como difracción de rayos X, microscopia electrónica de barrido (SEM), Termogravimetría (TG) y espectroscopia Raman. | spa |
| dc.description.abstractenglish | The electrochemical conversion of CO2 to hydrocarbons is one of the most tempting proposals currently for the reduction of this gas in the environment (Centi, Perathoner, Wine, & Gangeri, 2007). However, it is inefficient due to the high energy cost that is needed. Because of this, the way to implement catalysts that improve conversion efficiency through electrochemical cells is investigated. In this study, copper and cobalt electrocatalysts were synthesized using reduced graphene (RG) as support, made from electrochemical graphite. In the synthesis of RG, the modified Hummer method was used for the oxidation process [(Centi, Quadrelli, & Perathoner, 2013)]. These supports were evaluated through cyclic voltammetry and were characterized by SEM, TG, DRX and RAMAN. Obtaining the electrochemical behavior and its conductivity, as well as its physical-chemical characteristics in order to analyze its viability as a support for the electrocatalysts. Subsequently, the electrocatalysts were synthesized by depositing the metals by means of an incipient moisture impregnation. Electrocatalysts were characterized by methods such as X-ray diffraction, scanning electron microscopy (SEM), Thermogravimetry (TG) and Raman spectroscopy | spa |
| dc.description.degreename | Ingeniero Químico | spa |
| dc.description.hashtag | #ConversiónElectrocatalítica | spa |
| dc.description.hashtag | #DióxidoDeCarbón | spa |
| dc.description.hashtag | #ElectroQuímica | spa |
| dc.description.rda | Requerimientos de sistema: Adobe Acrobat Reader | spa |
| dc.format.extent | 27 páginas | spa |
| dc.format.mimetype | application/pdf | spa |
| dc.identifier.instname | instname:Universidad de Bogotá Jorge Tadeo Lozano | spa |
| dc.identifier.reponame | reponame:Repositorio Institucional de la Universidad de Bogotá Jorge Tadeo Lozano | spa |
| dc.identifier.uri | https://hdl.handle.net/20.500.12010/6705 | |
| dc.language.iso | spa | spa |
| dc.publisher | Universidad de Bogotá Jorge Tadeo Lozano | spa |
| dc.publisher.faculty | Facultad de Ciencias Naturales e Ingeniería | spa |
| dc.publisher.program | Ingeniería Química | spa |
| dc.relation.references | Aljabour, A., Coskun, H., Apaydin, D. H., Ozel, F., Hassel, A. W., Stadler, P., … Kus, M. (2018). Nanofibrous cobalt oxide for electrocatalysis of CO2reduction to carbon monoxide and formate in an acetonitrile-water electrolyte solution. Applied Catalysis B: Environmental, 229(August 2017), 163–170. https://doi.org/10.1016/j.apcatb.2018.02.017 | spa |
| dc.relation.references | Anpo, M., Yamashita, H., Ichihashi, Y., & Ehara, S. (1995). Photocatalytic reduction of CO2 with H2O on various titanium oxide catalysts. Journal of Electroanalytical Chemistry, 396(1–2), 21–26. https://doi.org/10.1016/0022-0728(95)04141-A | spa |
| dc.relation.references | Castro, A., Sepúlveda, S., & Cruz, R. (2011). Obtención de grafeno mediante la reducción química del óxido de grafito. Ingenierías, 14(17–18), 35–42. https://doi.org/10.1016/j.synthmet.2012.07.016 | spa |
| dc.relation.references | Centi, G., Perathoner, S., Wine, G., & Gangeri, M. (2007). Electrocatalytic conversion of CO 2 to long carbon-chain hydrocarbons {, 671–678. https://doi.org/10.1039/b615275a | spa |
| dc.relation.references | Centi, G., Quadrelli, E., & Perathoner, S. (2013). Catalysis for CO2 conversion: a key technology for rapid introduction of renewable energy in the value chain of chemical industries, (207890). https://doi.org/10.1039/b000000x | spa |
| dc.relation.references | Chang, Z. Y., Huo, S. J., He, J. M., & Fang, J. H. (2017). Facile synthesis of Cu–Ag bimetallic electrocatalyst with prior C2products at lower overpotential for CO2electrochemical reduction. Surfaces and Interfaces, 6, 116–121. https://doi.org/10.1016/j.surfin.2016.12.002 | spa |
| dc.relation.references | Dikin, D. A., Stankovich, S., Zimney, E. J., Piner, R. D., Dommett, G. H. B., Evmenenko, G., … Diankov, G. (2012). Graphene Oxide Papers Modified by. Carbon, 4(3), 4400–4409. https://doi.org/10.1007/s10853-012-6294-5 | spa |
| dc.relation.references | Huang, J., Guo, X., Wei, Y., Hu, Q., Yu, X., & Wang, L. (2019). A renewable, flexible and robust single layer nitrogen-doped graphene coating Sn foil for boosting formate production from electrocatalytic CO2 reduction. Journal of CO2 Utilization, 33(December 2018), 166–170. https://doi.org/10.1016/j.jcou.2019.05.026 | spa |
| dc.relation.references | Li, Dan; Kaner, R. B. (2008). Graphene-Based Materials as. Science, 320(x). | spa |
| dc.relation.references | Li, Y., Zhou, W., Wang, H., Xie, L., Liang, Y., Wei, F., … Dai, H. (2012). An oxygen reduction electrocatalyst based on carbon nanotubeĝ€ "graphene complexes. Nature Nanotechnology, 7(6), 394–400. https://doi.org/10.1038/nnano.2012.72 | spa |
| dc.relation.references | Liu, W., Miao, Z., Li, Z., Wu, X., Zhou, P., Zhao, J., … Zhuo, S. (2019). Electroreduction of CO 2 catalyzed by Co@N-C materials. Journal of CO2 Utilization, 32(April), 241–250. https://doi.org/10.1016/j.jcou.2019.04.005 | spa |
| dc.relation.references | Malard, L. M., Pimenta, M. A., Dresselhaus, G., & Dresselhaus, M. S. (2009). Raman spectroscopy in graphene. Physics Reports, 473(5–6), 51–87. https://doi.org/10.1016/j.physrep.2009.02.003 | spa |
| dc.relation.references | Marcano, D. C., Kosynkin, D. V, Berlin, J. M., Sinitskii, A., Sun, Z., Slesarev, A., … Tour, J. M. (2010). Improved Synthesis of Graphene Oxide, 4(8), 4806–4814. https://doi.org/10.1021/nn1006368 | spa |
| dc.relation.references | Mistry, H., Reske, R., Strasser, P., & Roldan Cuenya, B. (2017). Size-dependent reactivity of gold-copper bimetallic nanoparticles during CO2electroreduction. Catalysis Today, 288, 30–36. https://doi.org/10.1016/j.cattod.2016.09.017 | spa |
| dc.relation.references | Park, S., & Ruoff, R. S. (2009). Chemical methods for the production of graphenes. Nature Nanotechnology, 4(4), 217–224. https://doi.org/10.1038/nnano.2009.58 | spa |
| dc.relation.references | Press, A. I. N. (2007). A comparison of Latin American energy-related CO 2 emissions from 1970 to 2001, 35, 586–596. https://doi.org/10.1016/j.enpol.2006.01.003 | spa |
| dc.relation.references | Ryn, G., Ek, D., & Bj, W. (2011). Large scale graphene oxide. Langmuir, 6(1), 35–39. | spa |
| dc.relation.references | Savitha, M. B., Jayarama, A., & Pinto, R. (2017). Electrocatalytic reduction of CO 2 into useful chemicals-A Brief Review. Sahyadri International Journal of Research, 3(1), 18–36. Retrieved from http://sijr.in/articles/june2017/4.pdf | spa |
| dc.relation.references | Shao, G., Lu, Y., Wu, F., Yang, C., Zeng, F., & Wu, Q. (2012). Graphene oxide: The mechanisms of oxidation and exfoliation. Journal of Materials Science, 47(10), 4400–4409. https://doi.org/10.1007/s10853-012-6294-5 | spa |
| dc.relation.references | Singh, S., Gautam, R. K., Malik, K., & Verma, A. (2017). Ag-Co bimetallic catalyst for electrochemical reduction of CO 2 to value added products. Biochemical Pharmacology, 18, 139–146. https://doi.org/10.1016/j.jcou.2017.01.022 | spa |
| dc.relation.references | Stankovich, S., Dikin, D. A., Piner, R. D., Kohlhaas, K. A., Kleinhammes, A., Jia, Y., … Ruoff, R. S. (2007). Synthesis of graphene-based nanosheets via chemical reduction of exfoliated graphite oxide. Carbon, 45(7), 1558–1565. https://doi.org/10.1016/j.carbon.2007.02.034 | spa |
| dc.relation.references | Wang, C., Cao, M., Jiang, X., Wang, M., & Shen, Y. (2018). A catalyst based on copper-cadmium bimetal for electrochemical reduction of CO2to CO with high faradaic efficiency. Electrochimica Acta, 271, 544–550. https://doi.org/10.1016/j.electacta.2018.03.156 | spa |
| dc.relation.references | Xin, Y., Liu, J. G., Zhou, Y., Liu, W., Gao, J., Xie, Y., … Zou, Z. (2011). Preparation and characterization of Pt supported on graphene with enhanced electrocatalytic activity in fuel cell. Journal of Power Sources, 196(3), 1012–1018. https://doi.org/10.1016/j.jpowsour.2010.08.051 | spa |
| dc.rights.accessrights | info:eu-repo/semantics/openAccess | spa |
| dc.rights.local | Abierto (Texto Completo) | spa |
| dc.subject | Conversión electroquímica | spa |
| dc.subject | Electrocatalizadores | spa |
| dc.subject.lemb | Electroconversión de CO2 | spa |
| dc.subject.lemb | Química | spa |
| dc.subject.lemb | Soluciones (Química) | spa |
| dc.subject.lemb | Efectos ambientales | spa |
| dc.subject.lemb | Dioxido de carbono | spa |
| dc.title | Valorización de CO2 por conversión electrocatalítica con catalizadores bimetálicos usando como soporte grafeno, nanotubos de carbón, carbón activo y negros de carbón. | spa |
| dc.type.driver | info:eu-repo/semantics/bachelorThesis | spa |
| dc.type.hasversion | info:eu-repo/semantics/acceptedVersion | spa |
| dc.type.local | Trabajo de grado | spa |
Archivos
Bloque original
1 - 1 de 1
Cargando...
- Nombre:
- Trabajo de grado..pdf
- Tamaño:
- 2.34 MB
- Formato:
- Adobe Portable Document Format
- Descripción:
- Ver PDF
Bloque de licencias
1 - 2 de 2
Cargando...
- Nombre:
- license.txt
- Tamaño:
- 2.87 KB
- Formato:
- Item-specific license agreed upon to submission
- Descripción:
Cargando...
- Nombre:
- Formato de autorizacion de publicacion utadeo.jpg
- Tamaño:
- 868.47 KB
- Formato:
- Joint Photographic Experts Group/JPEG File Interchange Format (JFIF)
- Descripción:
