Blar i NTNU Open på forfatter "Lein, Hilde Lea"
-
Effects of Oxygen Mobility in La-Fe-Based Perovskites on the Catalytic Activity and Selectivity of Methane Oxidation
Chang, Hui; Bjørgum, Erlend; Mihai, Oana; Yang, Jie; Lein, Hilde Lea; Grande, Tor; Raaen, Steinar; Zhu, Yi-an; Holmen, Anders; Chen, De (Peer reviewed; Journal article, 2020)The mechanism and structure requirements of selective and total oxidation of methane in a chemical looping process are both experimentally and theoretically examined on La1–xSrxFeO3−δ (x = 0, 0.2, and 0.5) and La0.5Sr0.5 ... -
Epoxy based coatings with graphene and graphene oxide additions for antifouling applications
Kyllingstad, Marita (Master thesis, 2021)Prosessen der uønsket marin vekst akkumuleres på marine konstruksjoner kalles biologisk begroing. Forebygging av biologisk begroing er gunstig med hensyn til økonomiske aspekter, miljø, kostnader og vedlikehold for flere ... -
Evaluating characterization methods for new porous functional materials
Ali, Daniel (Doctoral theses at NTNU;2021:312, Doctoral thesis, 2021)This thesis is concerned with the development and evaluation of characterization methods for new porous functional materials. Functionalized one-dimensional silicoaluminophosphates (SAPOs) were chosen as model systems for ... -
Evaluation of surfactant templates for one-pot hydrothermal synthesis of hierarchical SAPO-5
Ali, Daniel; Zeiger, Caren; Azim, Muhammad Mohsin; Lein, Hilde Lea; Mathisen, Karina (Peer reviewed; Journal article, 2020)Hierarchical SAPO-5 molecular sieves were synthesized with three different mesopore structure-directing agents (meso-SDAs) (cetyltrimethylammonium bromide (CTAB), myristyltrimethylammonium bromide (MTMAB) and [3-(trime ... -
First-year university students' perception of chemical bonding and bond energy
Aakre, Iselin Grav; Persson, Rolf Jonas; Lein, Hilde Lea; Eggen, Per-Odd (Peer reviewed; Journal article, 2021) -
Graphene Oxide Coatings for Anti-Fouling Applications
Sandbakk, Stine (Master thesis, 2020)Belegg (coatinger) med grohindrende egenskaper har evnen til å hemme algevekst på konstruksjoner i marine næringer, i skipsfart, offshoreindustri, fiskeoppdrett og vannrensing. I dag brukes kobberoksid i flere relaterte ... -
Hydrophobic Coatings for Anti-Icing Applications
Halvorsen, Aase Marie (Master thesis, 2014)The motivation for developing environmentally friendly and inexpensive solutions for anti-icing is high. The oil industry is heading toward arctic regions and the development of improved anti-icing techniques demands greater ... -
Hydrophobic Coatings for Anti-Icing Applications
Raasok, Ellen-Kristin (Master thesis, 2014)The background for this Master s Thesis is to investigate materials and coatings for use in anti-icing applications. Icing is a problem in many different fields, from aeronautic transport, power lines, and wind turbines ... -
Improvement of surface properties of high pressure laminates
Rusu, Caterina Lesaint (Doctoral theses at NTNU;2018:59, Doctoral thesis, 2018)Laminated flooring is an important part of the decorative laminates market. High pressure laminates in particular are preferred products for flooring due to their outstanding properties such as fire and stain resistance, ... -
Investigating the use of dip-coating and angle dependent dip-coating for deposition and synthesis of CZTS thin films for use in PV applications
Simensen, Vincent (Master thesis, 2019)CZTS thin films were synthesized, with fluorine doped tin oxide (FTO) on soda-lime glass (SLG) as a substrate, by means of dip-coating and angle dependent dip-coating. The experimental procedure involved using thiourea as ... -
Mechanical Properties and Phase Stability of Oxygen Permeable Membranes La0.5Sr0.5Fe1-xCoxO3-δ
Lein, Hilde Lea (Doktoravhandlinger ved NTNU, 1503-8181; 2005:51, Doctoral thesis, 2005)Ceramic membranes made from mixed oxygen-ionic and electronic conducting perovskite oxides can selectively separate oxygen from air at elevated temperatures. These membranes have several potential applications that require ... -
Metallic Interconnects for Solid Oxide Fuel Cells: High Temperature Corrosion and Protective Spinel Coatings
Talic, Belma (Doctoral thesis at NTNU;2016:221, Doctoral thesis, 2016)Metallic Interconnects for Solid Oxide Fuel Cells: Increasing the share of renewable energy is important in the effort to limit global warming. The challenge with increased dependence on renewable energy sources such ... -
A novel approach for the evaluation of ice release performance of coatings using static friction measurements
Lein, Hilde Lea; Diget, Jakob Stensgaard; Öberg Hed, Kim; Martinsen, Morten (Peer reviewed; Journal article, 2020)Atmospheric icing on structures and equipment represents a challenge for operation and safety. Passive ice removal by ice-phobic coatings has received much attention over the last decades. The current state-of-the-art ... -
Novel Coatings with low adhesion to ice
Martinsen, Morten (Doctoral theses at NTNU;2022:70, Doctoral thesis, 2022)Atmospheric icing can be a nuisance during the winter season in the Northern hemisphere, both in everyday life and for critical infrastructure. The strong adhesive forces between ice and organic coatings typically employed ... -
Optimizing Microalgae Biomass Production; Using Nanomaterials for Enhanced Light Transport
Tjønneland, Maren Valestrand (Master thesis, 2020)Den lave utnyttelsen av lys i nåværende fotobioreaktorer er en stor utfordring når det kommer til å gjøre industriell produksjon av mikroalger økonomisk lønnsomt. En lovende strategi for å forbedre den volumetriske ... -
Pinpointing basic sites formed upon incorporation of iron in hierarchical SAPO-11 using catalytic model reactions
Ali, Daniel; Li, Zhihui; Azim, Muhammad Mohsin; Lein, Hilde Lea; Mathisen, Karina (Peer reviewed; Journal article, 2022)By utilizing previously established catalytic model reactions, a method for probing the topological location of transition metal sites incorporated in hierarchical silicoaluminophosphates (SAPOs) is presented. For the first ... -
Preparation of (La0.8Sr0.2)0.995CoO3-based Inks for Ink-Jet Printing of Thin Films in Solid Oxide Fuel Cells (SOFCs)
Rogstad, Daniel Tevik (Master thesis, 2017)Lanthanum Strontium Cobalt oxide (LSC) is a mixed ionic-electronic conductor (MIEC) ceramic suited for use as cathode material in Solid Oxide Fuel Cells (SOFCs). Extensive research is conducted on producing the cathode in ... -
Preparation of Inks for Inkjet Printing of Thin Films in Solid Oxide Fuel Cells
Stornes, Espen (Master thesis, 2016)Solid oxide fuel cell technology can achieve high efficiency when producing electric power. To produce these fuel cells with a high quality and a low cost, inkjet printing can be utilized. This technique is highly dependent ... -
Processing of thin film ceramic membranes for oxygen separation
Gurauskis, Jonas; Lohne, Ørjan Fossmark; Lein, Hilde Lea; Wiik, Kjell (Journal article; Peer reviewed, 2012)Processing of dense and thin ceramic membrane layers for high temperature selective oxygen separation is addressed in this study. Mixed oxygen-ionic and electronic conducting perovskite oxide system based on La0.2Sr0.8Fe ... -
Protective Spinel Coatings for Metallic Interconnects in Solid Oxide Fuel Cells
Bø, Fredrik Hornkjøl (Master thesis, 2014)Solid oxide fuel cells (SOFC) are one of the most effective ways to produce electrical energy and are seen as the most promising energy producer from a variety of fuels. To produce a sufficient amount of energy, several ...