Essays about: "aqueous solution"

Showing result 1 - 5 of 63 essays containing the words aqueous solution.

  1. 1. The effect of material properties on PEM fuel cell catalysts on durable oxidation reduction activity

    University essay from KTH/Kemiteknik

    Author : Xiaoling Jiang; [2023]
    Keywords : PEM fuel cell; catalyst; ORR activity; particle size; degradation; PEM-bränslecell; katalysator; syrgasreduktionsaktivitet; partikelstorlek; åldring;

    Abstract : I detta examensarbete utforskas påverkan av partikelstorleken hos Pt-katalysatorer på kolbärare på syrereduktionen i polymerelektrolytmembran (PEM)-bränsleceller. Den elektrokemiskt aktiva ytarean, aktiviteten för syrereduktion och tillhörande degraderingshastigheter för de undersökta katalysatorerna beräknas och jämförs. READ MORE

  3. 2. Membrane-less porous walls electrolyzer for electrochemical ammonia synthesis

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Francesco Gelain; [2023]
    Keywords : electrochemical ammonia synthesis EAS ; nitrate reduction; green ammonia; energy storage; hydrogen carrier.; elektrokemisk ammoniaksyntes; nitratreduktion; ammoniak; grön ammoniak; energilagring; vätgasbärare.;

    Abstract : n a world of unsustainable growth and increasingly catastrophic climate events, the quest for sustainability is open. Electrochemical ammonia synthesis (EAS) represents an eco-friendly means for green ammonia production. READ MORE

  4. 3. Biocatalysis in Pickering emulsions

    University essay from Lunds universitet/Bioteknik (master); Lunds universitet/Bioteknik (CI)

    Author : Christine Vera Isabel Schmidt; [2023]
    Keywords : Enzymes; Pickering emulsion; Amine Transaminases; Green Chemistry; Stereoselectivity; Biotechnology; Biology and Life Sciences;

    Abstract : Employing enzymes as catalysts in the production of chiral amines that are both used as building blocks and active pharmaceutical ingredients might be promising due to milder reaction conditions compared to non-biological catalysts, exclusion of heavy metals, high selectivity towards substrates and precision in chirality of the products. Transaminases are attractive for the use in this process. READ MORE

  5. 4. Electrosynthesis of persulfate and hydrogen gas with boron doped diamond as the anode material

    University essay from KTH/Kemiteknik

    Author : Sandra Shneker; Tsion Abebaw Kebede; Vera Lindbäck; [2022]
    Keywords : Boron-doped diamond; persulfate; flow cell; electrosynthesis; current efficiency;

    Abstract : The efficiency of boron-doped diamond electrodes (BDD) has been investigated by electrolysis of an aqueous solution containing sodium sulfate. A Synthesis StarterKit from Condias was used, which contained the BDD anode with an active surface area of 3.14 cm2, and electrosynthesis was performed in a batch mode reactor. READ MORE

  6. 5. Computational Cyclic Voltammetry of Supercapacitors

    University essay from Uppsala universitet/Strukturkemi

    Author : Albert Pettersson; [2022]
    Keywords : ;

    Abstract : As the demand on electrochemical energy storage devices grows, more complex technologies are required, hence an improved knowledge on the microscopical level is needed. This can be achieved by using computational tools, in particular molecular simulations. READ MORE