Browsing by Subject "Oxidation"
Now showing items 1-20 of 60
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Aggregate expansivity due to sulfied oxidation - I. Reaction system and rate model
(Aggregate expansivity due to sulfied oxidation - I. Reaction system and rate model, 1996)
Article
Open AccessOxidation 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
(2015-01-01)
Article
Open AccessNanostructured 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 ... -
Assessment of a sulfite/iron/UV-A system in urban wastewater disinfection
(OmniaScience, 2021-03)
Conference report
Open Access -
Asymmetric sulfoxidation by engineering the heme pocket of a dye-decolorizing peroxidase
(Royal Society of Chemistry, 2016-05-23)
Article
Open AccessThe 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
(Universitat Politècnica de Catalunya, 2021-01-13)
Bachelor thesis
Restricted access - author's decisionLa 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
(2018-09-21)
Article
Open AccessIncreasingly, 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
(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
(2021-09-29)
Article
Open AccessCon 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
(2020-09-07)
Article
Open AccessCO 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) ... -
Comparison of the electrolytic, ultrasounds and chemical cleaning in corroded naval steel
(SARTI, 2021)
Article
Open AccessOxygen, salt and water are key factors afecting metal deterioration and leading to corrosion in a marine environment. Prolonged corrosion may compromise the use of the materials and this may have an important economic ... -
Comportament a alta temperatura d'aliatges de titani per aplicacions en el sector aeroespacial
(Universitat Politècnica de Catalunya, 2017-10)
Bachelor thesis
Open AccessEn 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 ... -
Corn starch and gelatin-based films added with guabiroba pulp for application in food packaging
(Elsevier Ltd, 2019-03-01)
Article
Open AccessThe 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
(2014)
Conference lecture
Open AccessBisphenol 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
(2019-08-01)
Article
Open AccessThe 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)
(American Institute of Physics (AIP), 2009-02-26)
Article
Open AccessOxidation 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 ... -
Elucidating the chemical nature of laccase-modified alkyl gallates
(Universidade de Aveiro, 2018)
Conference lecture
Restricted access - publisher's policyIn 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
(Universitat Politècnica de Catalunya / Universität Saarlandes, 2008)
Master thesis (pre-Bologna period)
Restricted access - confidentiality agreement -
Environment related surface phenomena and their influence on properties of Ti-6Al-4V and Ti-6Al-2Sn-4Zr-2Mo : oxidation at elevated temperature and corrosion during chemical treatment
(Universitat Politècnica de Catalunya, 2016-09-29)
Doctoral thesis
Open Access
Covenantee: Luleå tekniska universitetThis thesis covers investigation of the surface phenomena of Ti-6Al-4V and Ti-6Al-2Sn-4Zr-2Mo alloys related with oxidation at elevated temperature and corrosion during chemical treatment in hydrofluoric-nitric acid (HF/HNO3) ... -
Estudi de la interacció metall-suport en catalitzadors Au/CeO2 a través de les reaccions d'oxidació de CO i CO-PrOx per a la purificació d'hidrogen
(Universitat Politècnica de Catalunya, 2017-09)
Open AccessL’hidrogen, en un món on cada vegada s’utilitzen menys recursos amb contingut de carboni, es perfila com a actor principal en el marc energètic, i cada vegada serà més explotat com a al·limentació en les PEMFC (Polymer ... -
Estudi per la modificació funcional de biofilms de nanocel·lulosa mitjançant ozó
(Universitat Politècnica de Catalunya, 2020-01-15)
Bachelor thesis
Open AccessEl siguiente estudio tiene como principal objetivo oxidar la nanocelulosa fibrilar (NFC) mediante ozono con el fin de obtener un biofilm con propiedades funcionales avanzadas. En primer lugar, se aplica varias veces el ...
