Blar i Institutt for materialteknologi på tittel
Viser treff 2150-2169 av 2503
-
Supported Iridium-Ruthenium Mixed Oxide Catalysts for Oxygen Evolution: Synthesis of Mixed Oxides by the Microwave Polyol Method. Composition Dependency of the Catalytic Activities of Mixed Oxides for the OER in PEM Water Electrolysis
(Master thesis, 2013)In this work the microwave polyol synthesis method have been shown as an advantageous method for producing ATO supported IrO2, RuO2 and iridium-ruthenium mixed oxides, allowing for faster synthesis than the normal polyol ... -
Surface Diffusion of Oxygen Transport Membrane Materials Studied by Grain-Boundary Grooving
(Journal article; Peer reviewed, 2016)Mass transport mechanism responsible for grain-boundary grooving during thermal annealing of polished ceramics of Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF) and La2NiO4+δ (LN) was revealed by atomic force microscopy. Surface diffusion ... -
Surface passivation properties of HfO2 thin film on n-Type crystalline Si
(Journal article, 2017)Atomic layer deposited hafnium oxide is shown to provide good surface passivation of low resistivity, n-type crystalline Si wafers after a low temperature anneal. The surface passivation is related to a fixed negative ... -
Surface processing and analysis of crystalline silicon solar cell materials
(Doctoral theses at NTNU;2023:251, Doctoral thesis, 2023) -
Surface reactivity and cation non-stoichiometry in BaZr1-xYxO3-δ (x=0-0.2) exposed to CO2 at elevated temperature
(Journal article; Peer reviewed, 2019)The reactivity of BaZr1−xYxO3−δ (x = 0–0.2) ceramics under 1 atm CO2 at 650 °C for up to 1000 h was investigated in order to elucidate possible degradation processes occurring when the material is applied as a proton-conducting ... -
Surface Treatment of Graphite for the Mitigation of Lithium Plating in Fast Charging Lithium-Ion Batteries
(Master thesis, 2022)Grafittanoden har vært det foretrukne valget for bruk i litium-ionbatterier (LIB-er) siden de ble kommersialisert i 1991, på grunn av dens lave kostnad, råmaterialtilgjengelighet, relativt høye energi- og effekttetthet og ... -
Surface treatment of high performance multicrystalline silicon wafers
(Master thesis, 2018)This master thesis investigates the properties of high performance multicrystalline silicon, and the production line of black multicrystalline silicon solar cells with PERC architecture. Possible solutions to achieve ... -
Sustainability in alumina production from bauxite
(Chapter, 2016)Alumina (Al2O3) is the main material used for the aluminum production, which is originated from bauxite ore through hydrothermal processes. Although bauxite conversion to alumina can be done through a few competitive ... -
Sustainable Cathode Production for Lithium-Ion Batteries
(Bachelor thesis, 2021)De siste årene har litiumionebatterier (LIB) inntatt en sentral rolle i energilagring for elektrifiseringen av transportsektoren. Det gjenstår fortsatt omfattende utvikling for at produksjonen skal bli bærekraftig. Det ... -
Sustainable use of Bio-ash from the Biozin Project
(Bachelor thesis, 2023)Biozin Holding AS er et selskap som har som mål å produsere avansert, bærekraftig biodrivstoff ved hjelp av IH2 teknologi. Dette biodrivstoffet lages ved å utnytte skogsrester og biprodukter fra sagbruksindustrien, og i ... -
Swelling properties of bioresponsive hydrogels: Swelling kinetics, and transport mechanisms in a hydrogel for signal transducing
(Master thesis, 2013)An oligonucleotide grafted acrylamide-bis-acrylamide based hydrogel was tested as a signal transducer. The sensing strand was conjugated with Iowa black that quenched the signal from the Alexa fluor 488 conjugated at the ... -
Synergistic effect between molybdenum back contact and CIGS absorber in the degradation of solar cells
(Peer reviewed; Journal article, 2024)The stability of molybdenum (Mo) back contact and Cu (InxGa(1-x)Se2(CIGS) absorber layers interfaces relevant for CIGS-based solar cells was investigated using accelerated aging test, considering humidity and temperature ... -
Synergistic Effect of Bimetallic MOF Modified Separator for Long Cycle Life Lithium-Sulfur Batteries
(Journal article; Peer reviewed, 2023)Severe polysulfide dissolution and shuttling are the main challenges that plague the long cycle life and capacity retention of lithium-sulfur (Li-S) batteries. To address these challenges, efficient separators are designed ... -
Synergistic effects of Cd, Si and Cr additions on precipitation strengthening and thermal stability of dispersoids in AA3003 alloy
(Peer reviewed; Journal article, 2022)The thermally stable Mn-rich dispersoids in Al alloys were recently reported to have a significant dispersion strengthening effect. Further improvements in the dispersion strengthening and thermal stability of Mn-rich ... -
Synergistic strengthening by nano-sized α-Al (Mn, Fe) Si and Al3Zr dispersoids in a heat-resistant Al–Mn–Fe–Si–Zr alloy
(Peer reviewed; Journal article, 2021)Strengthening by dispersoids in Al alloys has been limited by either low number density or low volume fraction of dispersoids. In the present work, the influence of an addition of 0.28 wt% Zr on precipitation hardening ... -
Syntese av referanse standarder for kvartære ammonium stoffer (QUATS)
(Bachelor thesis, 2022)I dette prosjektet ble elleve kvartære ammonium stoffer (QUATS) syntetisert for bruk som referansestandarder. ˚Atte av disse stoffene tilhører gruppen dialkyldimetylammonium klorider (DDACs) og tre tilhører gruppen ... -
Syntese og karakterisering av katalysatorer for vannelektrolyse.: Effekt av bærestrukturer og synteseforhold på den katalytiske aktiviteten
(Master thesis, 2011)I denne masteroppgaven ble det syntetisert iridiumbaserte katalysatorer på en bærerstruktur for oksygenutviklingsreaksjonen i en PEM vannelektrolysør, ved hjelp av en polyolmetode. Katalysatorpulverne ble karakterisert ved ... -
Syntetisering av NMC111-katoder til Litium-ionbatterier
(Master thesis, 2019)Å oppnå Li-ion batterier (LIBer) med høy energy tetthet, avhenger blandt annet av pulveregenskapene til det aktive katodemateriale. Det er under syntesen av dette pulveret de ekstrinsike og intrinsike egenskapene blir ... -
Synthesis and Characterisation of NMC622 Cathodes for Lithium-Ion Batteries
(Master thesis, 2019)Effektive batterier med høy kapasitet blir stadig viktigere i samfunnet, hvor folk blir mer og mer avhengig av bærbare elektroniske enheter og elektriske kjøretøy. På bakgrunn av dette har Glencore Nikkelverk AS startet ... -
Synthesis and characterisation of textured lead-free piezoelectric ceramics
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:139, Doctoral thesis, 2014)Lead-based piezoelectric ceramics are applied extensively in electromechanical devices. While lead-free alternatives are available, their performance and/or reliability have not yet been developed to the extent that they ...