Essays about: "high temperature al2o3"

Showing result 1 - 5 of 19 essays containing the words high temperature al2o3.

  1. 1. On the stability of current collectors in high-voltage lithium-ion batteries containing LiFSI electrolytes

    University essay from Uppsala universitet/Oorganisk kemi

    Author : Kevin Carlö; [2023]
    Keywords : LiFSI; high-voltage; anodic dissolution; corrosion; aluminum; current collector; electrolyte; battery;

    Abstract : The increasing energy demand requires a transition from fossil fuels to renewable resources. Lithium-ion batteries (LIBs) offer a promising solution as efficient energy storage devices. However, the aluminum current collector (CC) in LIBs is susceptible to anodic dissolution above 3 V vs. READ MORE

  3. 2. Chelating agents in NiMo sulfided catalysts and the effect of nitrogen compounds on hydrodearomatization and hydrodenitrogenation reactions

    University essay from KTH/Kemiteknik

    Author : Lilla Lukovicsová; [2022]
    Keywords : hydrotreating; NiMo Al2O3; HDN; HDA; trickle-bed microreactor; Type I and II hydrotreating catalysts; Hydrering; NiMo Al2O3; HDN; HDA; porlbädd reaktor; Typ I och II hydrering katalysatorer;

    Abstract : Hydrering är en viktig process för att producera produkter med önskade egenskaper samt att uppfylla de lagliga krav som existerar med avseende på miljö och hälsa. Reaktionerna som sker vid hydreringen är katalytiska vilket innebär att förstå sam utnyttja de mest lämpliga katalysatorerna är av yttersta vikt. READ MORE

  4. 3. Characterisation of GaN HEMTs on Different Substrates for Power Electronics Applications

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Hithiksha Krishna Murthy; [2022]
    Keywords : Gallium nitrate; High Mobility Electron Transistor; Silicon carbide; Silicon; Sapphire; substrates; power electronics;

    Abstract : GaN-based High Electron Mobility Transistors (HEMT) are appealing because of their large breakdown field, high saturation velocity, and superior thermal conductivity. They work at high temperature without much degradation. HEMTs have a few drawbacks despite many positives. The cost of developing GaN HEMTs on a native substrate is high. READ MORE

  5. 4. Investigating and Fabricating High-K (Al2O3) and Ferroelectric (HfO2) MIM-Capacitors for use in BEOL Fabrication Applications

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Thomas Hackett; [2021]
    Keywords : atomic layer deposition ALD ; ferroelectric; metal-insulator-metal MIM capacitors; low thermal budget; rapid thermal annealing RTA ;

    Abstract : Integration of high-K Metal-Insulator-Metal (MIM) capacitors in the Back-end-of-line (BEOL) is a topic of interest for the further development of the process at KTH Royal Institute of Technology. MIM-capacitors benefit from having constant capacitance values over a range of voltages and/or frequencies. READ MORE

  6. 5. Sensor concepts for Industry 4.0

    University essay from Lunds universitet/Industriell Produktion

    Author : Daniel Le; [2021]
    Keywords : Fluorescence; alumina; ruby; piezo-spectroscopic effect; Technology and Engineering;

    Abstract : The next industrial revolution has been denoted by Industry 4.0 and is the continuation of the process of knowledge acquisition and further control over the entire production process which has been evolving since the beginning of the industrialization. A paramount driver of Industry 4.0 is the smart sensor. READ MORE