Sus principales áreas de investigación son:

• Co-hidropirólisis catalítica de materiales lignocélulosicos/plásticos. 
• Obtención de biocombustibles de segunda generación y productos de alto valor agregado.
• Valorización de residuos, a través de procesos de co-pirólisis, para la obtención de biocombustibles alternativos.
• Pirólisis catalítica de materiales lignocélulosicos.
• Oxidación avanzada de compuestos orgánicos volátiles. 

Proyectos

1. Fortalecimiento del Programa de Doctorado. Proyecto ANID. Ejecución 2023-2025. Director de Proyecto.
2. Fortalecimiento de las capacidades analíticas para el desarrollo de los biomateriales y biocombustibles en las regiones del Bío-Bío y la Araucanía, a tráves de un micropirolizador y ATD acoplados a un GC/MS. Fondequip EQM 170077. 2017-actualidad. Coordinador Científico (Director de Proyecto)
3. Upgrade of bio-oil from biomass pyrolysis: Influence of surface characteristics of natural and modified zeolite. Fondecyt. 2014-2017. Investigador Responsable

Publicaciones (últimos 5 años)

1. Valdebenito, F.; Ramírez-Álvarez, R.; Alexandra Muñoz, M.; Pecchi, G.; Canales, R.; Ormazabal, S.; Muñoz, R.; Alejandro-Martín, S.; Quero, F.; Adam, R.; et al. Biomass Characterization and Solvent Extraction as Tools to Promote Phenol Production from Urban Pruning. Fuel (2024), 362, 130830, doi:https://doi.org/10.1016/j.fuel.2023.130830.
2. Bispo, D.F.; Loeser, T.F.L.; Cardozo-Filho, L.; Romero, R.; Alejandro-Martín, S.; Jegatheesan, J.; dos Santos Freitas, L. Green Solvent-Assisted Hydrothermal Conversion of Biomass Waste into Bio-Oil under Pressurized Conditions. Biomass Convers. Biorefinery (2023), 13, doi:10.1007/s13399-023-05171-z.
3. Venegas-Vásconez, D.; Arteaga-Pérez, L.E.; Aguayo, M.G.; Romero-Carrillo, R.; Guerrero, V.H.; Tipanluisa-Sarchi, L.; Alejandro-Martín, S. Analytical Pyrolysis of Pinus Radiata and Eucalyptus Globulus: Effects of Microwave Pretreatment on Pyrolytic Vapours Composition. Polymers (Basel). (2023), 15, doi:10.3390/polym15183790.
4. Puentes, B.; Vallejo, F.; Alejandro-Martín, S. Synergistic Effects and Mechanistic Insights into the Co-Hydropyrolysis of Chilean Oak and Polyethylene: Unlocking the Potential of Biomass–Plastic Valorisation. Polymers (Basel). (2023), 15, 2747, doi:10.3390/polym15122747.
5. Cerda-Barrera, C.; Fernández-Andrade, K.J.; Alejandro-Martín, S. Pyrolysis of Chilean Southern Lignocellulosic Biomasses: Isoconversional Kinetics Analysis and Pyrolytic Products Distribution. Polymers (Basel). (2023), 15, 2698, doi:10.3390/polym15122698.
6. Cabrera-Barjas, G.; Jimenez, R.; Romero, R.; Valdes, O.; Nesic, A.; Hernández-García, R.; Neira, A.; Alejandro-Martín, S.; de la Torre, A.F. Value-Added Long-Chain Aliphatic Compounds Obtained through Pyrolysis of Phosphorylated Chitin. Int. J. Biol. Macromol. (2023), 238, 124130, doi:10.1016/j.ijbiomac.2023.124130.
7. Fernández-Andrade, K. J.; Fernández-Andrade, A. A.; Zambrano-Intriago, L. A.; Arteaga-Perez, L. E.; Alejandro-Martin, S.; Baquerizo-Crespo, R. J.; Luque, R.; Rodríguez-Díaz, J. M.. Microwave-assisted MOF@biomass layered nanomaterials: Characterization and applications in wastewater treatment. Chemosphere (2023), 314, 137664, doi:10.1016/j.chemosphere.2022.137664.
8. Osorio-Vargas, P.; Lick, I.D.; Pizzio, L.R.; Alejandro-Martín, S.; Casas-Ledón, Y.; Poblete, J.; Casella, M.L.; Arteaga-Pérez, L.E. Using Tungstophosphoric Acid-Modified CeO2, TiO2, and SiO2 Catalysts to Promote Secondary Reactions Leading to Aromatics during Waste Tire Pyrolysis. Mol. Catal. (2022), 531, 112682, doi:https://doi.org/10.1016/j.mcat.2022.112682.
9. Guillermo Reyes, Claudia Marcela Pacheco, Estefania Isaza-Ferro, Amaidy González, Eva Pasquier, Serguei Alejandro-Martín, Luis E Arteaga-Pérez, Romina Romero, Isabel Carrillo-Varela, Regis Medonça, Colleen Flanigan, Orlando J Rojas, Upcycling agro-industrial blueberry waste into platform chemicals and structured materials for application in marine environments, Green Chemistry (2022). https://pubs.rsc.org/en/Content/ArticleLanding/2022/GC/D2GC00573E.
10. J. Vergara-Figueroa, F. Cerda-Leal, S. Alejandro-Martin, W. Gacitúa, Evaluation of the PLA-nZH-Cu Nanocomposite Film on the Micro-Biological, Organoleptic and Physicochemical Qualities of Packed Chicken Meat, Foods. 11 (2022) 546. https://doi.org/10.3390/foods11040546.
11. Alejandro-Martín, S.; Valdés, H.; Zaror, C., Catalytic Ozonation of Toluene over Acidic Surface Transformed Natural Zeolite: A Dual-Site Reaction Mechanism and Kinetic Approach, Catalysts, 11, 958 (2021). https://doi.org/10.3390/catal11080958.
12. J. Vergara-Figueroa, S. Alejandro-Martin, F. Cerda-Leal, W. Gacitúa, Dual electrospinning of a nanocomposites biofilm: Potential use as an antimicrobial barrier, Mater. Today Commun. 25 (2020) . https://doi.org/10.1016/j.mtcomm.2020.101671.
13. G.Reyes, M.J.Lundahl, S. Alejandro-Martín, L.E. Arteaga-Pérez, C. Oviedo, A.W.T. King, O.J. Rojas, Coaxial Spinning of All-Cellulose Systems for Enhanced Toughness: Filaments of Oxidized Nanofibrils Sheathed in Cellulose II regenerated from a Protic Ionic Liquid, Biomacromolecules. 21 (2020) 878-891. https://doi.org/10.1021/acs.biomac.9b01559.
14. J. Vergara-Figueroa, S. Alejandro-Martín, H. Pesenti, F. Cerda, A. Fernández-Pérez, W. Gacitúa, Obtaining Nanoparticles of Chilean Natural Zeolite and its Ion Exchange with Copper Salt (Cu2+) for Antibacterial Applications, Materials (Basel). 12 (2019) 2202. https://doi.org/10.3390/ma12132202.
15. S. Alejandro-Martín, A. Montecinos Acaricia, C. Cerda-Barrera, H. Diaz Pérez, Influence of Chemical Surface Characteristics of Ammonium-Modified Chilean Zeolite on Oak Pyrolysis, Catalysts. 9 (2019) 465. https://doi.org/10.3390/catal9050465
16. S. Alejandro-Martín, H. Valdés, M.-H. Manero, C. Zaror, Catalytic Ozonation of Toluene Using Chilean Natural Zeolite: The Key Role of Brønsted and Lewis Acid Sites, Catalysts. 8 (2018) 211. https://doi.org/10.3390/catal8050211.