Search for dissertations about: "Electrochemical activities"

Showing result 1 - 5 of 25 swedish dissertations containing the words Electrochemical activities.

  2. 1. On the operation of light-emitting electrochemical cells

    Author : E. Mattias Lindh; Ludvig Edman; Thomas Wågberg; Thomas Lanz; Sebastian Reineke; Umeå universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Artificial Light; Organic Electronics; Light-emitting Electrochemical Cells; Electrochemical Doping; Thin-film Optical Model; Optical Modes;

    Abstract : We are in the midst of a technological revolution that permeates nearly all human activities; artificial light is one of the most visible contributors in this societal change. If more efficient, green, and versatile light sources can be developed, they might improve the life of millions of people around the world while causing minimal damage to our climate and environment. READ MORE

  4. 2. Conducting Redox Polymers for Electrode Materials : Synthetic Strategies and Electrochemical Properties

    Author : Xiao Huang; Adolf Gogoll; Martin Sjödin; Maria Strømme; David Mecerreyes; Berit Olofsson; Fredrik Björefors; Tom Lindfors; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Organic electrode material; Energy storage; Conducting redox polymer; Polythiophene; Terephthalate; PEDOT; Chemistry with specialization in Organic Chemistry; Kemi med inriktning mot organisk kemi;

    Abstract : Organic electrode materials represent an intriguing alternative to their inorganic counterparts due to their sustainable and environmental-friendly properties. Their plastic character allows for the realization of light-weight, versatile and disposable devices for energy storage. READ MORE

  5. 3. Contingency in high-school students’ reasoning about electrochemical cells : Opportunities for learning and teaching in school science

    Author : Karim Hamza; Per-Olof Wickman; Gregory J. Kelly; Stockholms universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; electrochemistry; laboratory work; concept mapping; high-school; learning; teaching; pragmatism; practical epistemology analysis; contingency; discourse; misconceptions; alternative ideas; curricular materials; Subject didactics; Ämnesdidaktik; naturvetenskapsämnenas didaktik; Science Education;

    Abstract : The thesis takes its departure from the extensive literature on students’ alternative ideas in science. Although describing students’ conceptual knowledge in many science areas, the literature offers little about how this knowledge enters into the science learning process. READ MORE

  6. 4. Electrochemical evaluation of new materials in polymer electrolyte fuel cells

    Author : Björn Eriksson; Carina Lagergren; Göran Lindbergh; Rakel Lindström; Piotr Zelenay; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fuel cell; Pt-REM; Alloy catalyst; Multi walled carbon nanotubes; Bipolar plates; Water transport; Bränslecell; Pt-REM; Legerad katalysator; Flerväggade kolnanorör; Bipolära plattor; Vattentransport; Chemical Engineering; Kemiteknik;

    Abstract : Polymer electrolyte fuel cells (PEFC) convert the chemical energy in hydrogen to electrical energy and heat, with the only exhaust being water. Fuel cells are considered key in achieving a sustainable energy sector. The main obstacles to wide scale commercialization are cost and durability. READ MORE

  7. 5. Decontamination of Mercury from Aqueous Systems via Electrochemical PtHg4 Alloy Formation

    Author : Vera Roth; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Mercury; Platinum; Alloy Formation; Electrochemistry; Mercury Removal;

    Abstract : Mercury is worldwide a severe heavy metal pollutant and a serious threat to human health and ecosystems. Mercury can be released into the environment by various natural processes; however, mercury pollution has been significantly amplified by human activities such as mining, production of fertilizers, waste incineration and disposal. READ MORE