Essays about: "polarization curves"

Showing result 1 - 5 of 13 essays containing the words polarization curves.

  1. 1. Development of MOKE spectrometer

    University essay from Uppsala universitet/Materialfysik

    Author : Sebastian Åberg; [2023]
    Keywords : MOKE; Spectroscopy;

    Abstract : The magneto-optical Kerr effect (MOKE) describes the change in polarization of light reflected from a magnetic surface. This change is proportional to the magnetization and depends on the wavelength of light. Because of these properties, MOKE has found use as a tool to probe magnetism in matter. READ MORE

  3. 2. Hydrogen Fuel Cell Lifetime Simulation in Marine Applications

    University essay from KTH/Kraft- och värmeteknologi

    Author : Yifeng Zhong; [2022]
    Keywords : maritime transportation; FEMFC; lifetime simulation; degradation mechanism; empirical relationship; semi-empirical approach; sjötransport; PEM-bränsleceller; livslängdssimulering; nedbrytningsmekanism; empiriskt samband; semi-empiriskt tillvägagångssätt;

    Abstract : Maritime transportation emits about 3% of global greenhouse gas, International Maritime Organization (IMO) aims to reduce shipping’s emissions by 50% with respect to 2008 levels. Proton exchange membrane fuel cells (PEMFCs) are considered among the most promising clean technologies for decarbonizing the maritime sector. READ MORE

  4. 3. Model on degradation of PEM fuel cells in marine applications

    University essay from KTH/Kemiteknik

    Author : Erik Östling; [2021]
    Keywords : Proton exchange membrane fuel cell PEMFC ; marine applications; durability; lifetime prediction; empirical model; PEM bränsleceller; marina tillämpningar; hållbarhet; livslängdsberäkning; empirisk modell;

    Abstract : Sjöfarten står för 3 % av världens totala växthusgaser och är idag högst beroende av fossila bränslen. Ett alternativ för att gå över till en fossilfri flotta är användning av bränsleceller och vätgas som drivmedel. READ MORE

  5. 4. Corrosion studies on multicomponent TiZrNbTa thin films

    University essay from Uppsala universitet/Strukturkemi

    Author : Asker Jarlöv; [2020]
    Keywords : Corrosion resistance; Multicomponent thin-film; High entropy alloy; TiZrNbTa; Bipolar plates; Magnetron sputtering;

    Abstract : The goal of this work was to evaluate the electrochemical properties of TiZrNbTa thin films deposited by magnetron sputtering using an industrial physical vapor deposition system. Samples were deposited on both Si(001) and 316L stainless steel. READ MORE

  6. 5. Investigation of Governing Physics in a PEM Electrolyzer

    University essay from Lunds universitet/Kemiteknik (CI)

    Author : Kian Hajireza; [2020]
    Keywords : chemical engineering; electrochemistry; polymer-electrolyte membrane; electrolysis; hydrogen production; COMSOL; physics-based mode; multiphase transport; kemiteknik; Technology and Engineering;

    Abstract : Hydrogen gas is an energy source that has an energy density (per mass) that is three times as large than the energy density of natural gas. This qualifies hydrogen gas as a prime candidate for the fuel of tomorrow. One of the main research areas for hydrogen include the production of it as there are a vast amount of methods of hydrogen production. READ MORE