Now showing items 1-20 of 54

    • Aggregate expansivity due to sulfied oxidation - I. Reaction system and rate model 

      Casanova Hormaechea, Ignasi; Agulló Fité, Luís; Aguado de Cea, Antonio (Aggregate expansivity due to sulfied oxidation - I. Reaction system and rate model, 1996)
      Article
      Open Access
      Oxidation and hydration of sulfides in aggregate materials can yield to expansive reactions that affect the durability of concrete. This process is, in principle, independent from the potential alkali-aggregate reactivity, ...
    • Amorphous carbon modified nano-sized tungsten carbide as a gas diffusion electrode catalyst for the oxygen reduction reaction 

      Liu, Zhiwei; Li, Ping; Zhai, Fuqiang; Wan, Qi; Volinsky, Alex A.; Qu, Xuanhui (2015-01-01)
      Article
      Open Access
      Nanostructured tungsten carbide with high surface area and containing amorphous carbon is prepared by a low temperature combustion synthesis method. The nanostructured tungsten carbide is used as the catalyst in a gas ...
    • Aromatic stacking interactions govern catalysis in aryl-alcohol oxidase 

      Ferreira, Patricia; Hernández-Ortega, Aitor; Lucas, Fatima; Carro, Juan; Herguedas, Beatriz; Borrelli, Kenneth W.; Guallar, Víctor; Martínez, Angel T.; Medina, Milagros (FEBSPress, 2015-02-23)
      Article
      Open Access
      Aryl-alcohol oxidase (AAO, EC 1.1.3.7) generates H2O2 for lignin degradation at the expense of benzylic and other π system-containing primary alcohols, which are oxidized to the corresponding aldehydes. Ligand diffusion ...
    • Assessment of a sulfite/iron/UV-A system in urban wastewater disinfection 

      Guerra Rodríguez, Sonia; Cediel, Nerea; Rodríguez Hurtado, Encarnación; Rodríguez Chueca, Jorge (OmniaScience, 2021-03)
      Conference report
      Open Access
    • Asymmetric sulfoxidation by engineering the heme pocket of a dye-decolorizing peroxidase 

      Linde, Dolores; Cañellas, Marina; Coscolín, Cristina; Davó-Siguero, Irene; Romero, Antonio; Lucas, Fátima; Ruiz-Dueñas, Francisco J.; Guallar, Víctor; Martínez, Ángel T. (Royal Society of Chemistry, 2016-05-23)
      Article
      Open Access
      The so-called dye-decolorizing peroxidases (DyPs) constitute a new family of proteins exhibiting remarkable stability. With the aim of providing them new catalytic activities of biotechnological interest, the heme pocket ...
    • Avaluació de sistemes d'electrodiàlisi per aplicacions industrials 

      Pérez Maroto, Raül (Universitat Politècnica de Catalunya, 2021-01-13)
      Bachelor thesis
      Restricted access - author's decision
      La presència d’ions nitrogenats a les aigües d’arreu del món augmenta a mesura que passa el temps des de que es té coneixement de l’existència de dits ions. De la mateixa manera augmenta el control mediambiental i les ...
    • Avocado seed: A comparative study of antioxidant content and capacity in protecting oil models from oxidation 

      Segovia Gómez, Francisco José; Hidalgo López, Gádor Indra; Villasante Dueñas, Juliana; Ramis Juan, Xavier; Almajano Pablos, María Pilar (2018-09-21)
      Article
      Open Access
      Increasingly, consumers want products containing little or no synthetic compounds. Avocado seeds, which are a residue of the food industry, could be used to obtain extracts with high antioxidant power. In the present study, ...
    • Bioadsorció de Pb(II) mitjançant pell de taronja químicament modificada 

      Fortes Hernández, Sandra (Universitat Politècnica de Catalunya, 2016-05)
      Bachelor thesis
      Restricted access - author's decision
    • Caracterización físico-térmica del proceso de degradación durante la transformación de un film de LLDPE destinado a la fabricación de bolsas 

      Ballestar de las Heras, Ricardo Luis; Pradas Bello, Celia; Cañavate Ávila, Francisco Javier; Colom Fajula, Xavier (2021-09-29)
      Article
      Open Access
      Con este estudio se pretende analizar el comportamiento que presenta un LLDPE comercial, que se utiliza para la fabricación de bolsas, frente al proceso de degradación termo-oxidativa que sufre cada vez que se somete a un ...
    • CO Total and Preferential Oxidation over Stable Au/TiO2 Catalysts Derived from Preformed Au Nanoparticles 

      Jiménez Divins, Nuria; López López, Eduardo; Angurell Purroy, Inmaculada; Neuberg, Stefan; Zapf, Ralf; Kolb, Gunther; Llorca Piqué, Jordi (2020-09-07)
      Article
      Open Access
      CO preferential oxidation (PROX) is an effective method to clean reformate H2 streams to feed low-temperature fuel cells. In this work, the PROX and CO oxidation reactions were studied on preformed Au nanoparticles (NPs) ...
    • Comportament a alta temperatura d'aliatges de titani per aplicacions en el sector aeroespacial 

      Margalef Solé, Josep (Universitat Politècnica de Catalunya, 2017-10)
      Bachelor thesis
      Open Access
      En aquest treball s’estudien els fenòmens d’oxidació que tenen lloc en l’aliatge de titani Ti-6Al-4V quan és sotmet a tractaments tèrmics cíclics a elevades temperatures, per tal de simular condicions en servei que pot ...
    • Computer-aided laccase engineering: toward biological oxidation of arylamines 

      Santiago, Gerard; de Salas, Felipe; Lucas, Fatima; Monza, Emanuele; Acebes, Sandra; Martinez, Ángel T.; Camarero, Susana (ACS Publications, 2016-07-08)
      Article
      Open Access
      Oxidation of arylamines, such as aniline, is of high industrial interest and laccases have been proposed as biocata-lysts to replace harsh chemical oxidants. However, the reaction is hampered by the redox potential of the ...
    • Corn starch and gelatin-based films added with guabiroba pulp for application in food packaging 

      Malherbi, Naiane Miriam; Schmitz, Ana Camila; Grando, Remili Cristiani; Bilck, Ana Paula; Velasco Perero, José Ignacio; Matta Fakhouri, Farayde (Elsevier Ltd, 2019-03-01)
      Article
      Open Access
      The guabiroba pulp (GP) has natural antioxidant compounds, such as phenolic compounds and ascorbic acid. The aim of this work was to produce an active biodegradable film based on blends of gelatin (GEL) and corn starch ...
    • Degradation and mineralization of Bisphenol A by the photo fenton process 

      Navarro Jordà, Marina; Graells Sobré, Moisès; Pérez Moya, Montserrat (2014)
      Conference lecture
      Open Access
      Bisphenol A (BPA; 2,2-bis (4-hydroxyphenyl) propane) is an industrial organic chemical basically used in the plastics industry as a monomer for producing epoxy resins and polycarbonates [1,2]. It is also a well-known endocrine ...
    • Effect of Neem (Azadirachta indica L.) on lipid oxidation in raw chilled beef patties 

      Ouerfelli, Manel; Villasante Dueñas, Juliana; Ben Kâab, Leila Bettaieb; Almajano Pablos, María Pilar (2019-08-01)
      Article
      Open Access
      The aim of this study was to determine the total polyphenol content, radical scavenging and antimicrobial activities of Azadirachta indica (A. indica) and to evaluate their effect on shelf-life stability of raw beef patties ...
    • Effects of external global noise on the catalytic CO oxidation on Pt (110) 

      Bodega, Pablo S.; Alonso Muñoz, Sergio; Rotermund, H. H. (American Institute of Physics (AIP), 2009-02-26)
      Article
      Open Access
      Oxidation reaction of CO on a single platinum crystal is a reaction-diffusion system that may exhibit bistable, excitable, and oscillatory behavior. We studied the effect of a stochastic signal artificially introduced into ...
    • Efficient operation of photo-Fenton process for the treatment of emerging contaminants in water solutions 

      Yamal Turbay, Evelyn (Universitat Politècnica de Catalunya, 2013-10-24)
      Doctoral thesis
      Open Access
      The growth of population density in some areas of the planet and the increasing fast advances in technology and energy issues, have resulted in a remarkable increment in the necessity for goods and services, with a subsequent ...
    • Eliminación del herbicida cianazina en agua mediante métodos de oxidación avanzada 

      Cairol Esteller, Albert (Universitat Politècnica de Catalunya, 2009-06-18)
      Master thesis (pre-Bologna period)
      Open Access
      Aquest projecte pretén contribuir a millorar la qualitat de l’aigua contaminada amb l’herbicida Cianazina que té una gran aplicació en l’agricultura actual. A l’actualitat hi ha un elevat número d’estudis que tracten de ...
    • Elucidating the chemical nature of laccase-modified alkyl gallates 

      Cusola Aumedes, Oriol; Valls Vidal, Cristina; Vidal Lluciá, Teresa; Roncero Vivero, María Blanca (Universidade de Aveiro, 2018)
      Conference lecture
      Restricted access - publisher's policy
      In the present work we investigated the chemical changes undergone by enzyme-oxidized lauryl gallate (LG, dodecyl 3,4,5,-trihydroxybenzoate) by using Fourier transform infrared (FTIR) spectroscopy, and an oxidation mechanism ...
    • Entwicklung von Platin-MMC Elektrodenwerkstoffen für Zündkerzen 

      Yedra Cardona, Lluís (Universitat Politècnica de Catalunya / Universität Saarlandes, 2008)
      Master thesis (pre-Bologna period)
      Restricted access - confidentiality agreement