Sökning: "anodes"

Visar resultat 1 - 5 av 47 avhandlingar innehållade ordet anodes.

  1. 1. Efficiency and Selectivity in the Chlorate Process

    Författare :Aleksandra Lindberg; Ann Cornell; Susanne Holmin; Eva Blomberg; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; electrolysis; chlorate process; anodes; cathodes; selectivity; chromate; chromium VI ; DSA; HER; OER; ClER; oxygen; chlorate; hypochlorite; electrocatalysis; catalysis; Chemical Engineering; Kemiteknik;

    Sammanfattning : This licentiate thesis presents experimental studies concerning two parts of the electrochemical cell in the chlorate process: a cathode and an anode.Newly synthesized MnOx electrodes were investigated for the cathodic reaction, hydrogen evolution reaction (HER) in the chlorate process. LÄS MER

  3. 2. Photoelectrochemical Processes on Fe2O3 Based Model Anodes

    Författare :Beniamino Iandolo; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Near- field Enhancement; Hydrogen; Hematite; Water Splitting; Flatband Potential; Surface States.; Localized Plasmons; Nanoparticles;

    Sammanfattning : One possibility to partially satisfy the ever-increasing energy needs of modern society, without compromising the Earth’s environment through e.g. global warming, consists in harvesting solar energy and storing it as hydrogen produced from water splitting. This can potentially be achieved on a large scale using photoelectrochemical (PEC) cells. LÄS MER

  4. 3. A scalable furnace technique to grow silicon nanoparticles for high-performance Li-ion battery anodes

    Författare :Rohan Patil; Jonas Örtegren; Shizhao Xiong; Mittuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Li Ion Battery; Aerogel-Based Anodes; Novel Method; silicon nanoparticles; Nanographite; High Capacity;

    Sammanfattning : Lithium-ion batteries are one of the key technologies to address the global climate challenge. Higher battery capacity could also be seen as indirectly influencing the entire value chain. One way to increase capacity is to add silicon to the graphite anode, since silicon can store much more lithium ions than graphite. LÄS MER

  5. 4. Methanol and formic acid oxidising anodes in zinc electrowinning

    Författare :Maria Wesselmark; Göran Lindbergh; Magali Boutonnet; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical engineering; Kemiteknik;

    Sammanfattning : Electrowinning is an energy demanding process, in which the electrolysis accounts for the major part of the energy consumption. The anodic reaction in the electrolysis of zinc from sulphate based electrolytes is oxygen evolution, which has a standard potential of 1.23 V at 25 ºC. LÄS MER

  7. 5. Strontium Titanate-based Anodes for Solid Oxide Fuel Cells

    Författare :Peter Blennow Tullmar; Centrum för analys och syntes; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Kondenserade materiens egenskaper:elektronstruktur; spectroscopy; relaxation; magnetic resonance; supraconductors; magnetic and optical properties; electrical; Condensed matter:electronic structure; fasjämvikt; egenskaper termiska och mekaniska ; kristallografi; phase equilibria; Kondenserade materiens egenskaper:struktur; Condensed matter:stucture; thermal and mechanical properties; crystallography; infiltration; surfactant; ceria; Gd-doped ceria; redox stability; SOFC; ceramic anode; XRD; XANES; electrochemical impedance spectroscopy; defect chemistry; Nb-doped SrTiO3; electron microscopy; egenskaper elektriska; magnetiska och optiska ; supraledare; magnetisk resonans; spektroskopi; Inorganic chemistry; Oorganisk kemi; Electrochemistry; Elektrokemi; Energy research; Energiforskning; Composite materials; Kompositmaterial; Ceramic materials and powders; Keramiska material och pulver;

    Sammanfattning : The purpose for this work has been to develop new robust fuel electrodes for solid oxide fuel cells (SOFC). The aim was to find suitable ceramic materials or composites with promising properties for the use as SOFC anodes. LÄS MER