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Showing result 1 - 5 of 14 essays matching the above criteria.

1. 1. SFEER Hydrogen Permeation : Finding a suitable coating for the PA6 liner

   University essay from Uppsala universitet/Institutionen för materialvetenskap

   Author : Elsa Friis; Klara Karlsson; Rebecka Damgren; Emma Åkesson; Malin Johansson; [2023]
   Keywords : Hydrogen permeation; PA6; coating; hydrogen permeation barrier; polymer hydrogen permeation; permeation; protective coating; hydrogen embrittlement;

   Abstract : Water Stuff & Sun are developing a hydrogen battery based on a technology called SFEER’s. The SFEER’s are spherical high-pressure gas storage containers that are the size of a tennis ball. They consist of a carbon fiber-shell that is lined on the inside with a polymer called PA6. READ MORE

3. 2. Application of electrodes with redox mechanisms for the desalination of water

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

   Author : Pablo Moreno Cerezo; [2023]
   Keywords : Activated Carbon Cloth ACC ; Capacitive Deionization CDI ; Cyclic Voltammetry CV ; Electrochemistry; Polyaniline PANI ; Prussian Blue PB and Redox Reactions; Aktivt koltyg ACC ; Kapacitiv avjonisering CDI ; Cyklisk voltammetri CV ; Elektrokemi; Polyanilin PANI ; Preussisk blå PB och Redoxreaktioner;

   Abstract : Capacitive deionization is a promising technology for purification and desalination of brackish water with great advantages over current technologies due to its low operating cost and high-water recovery ratio. Most of the system studied relies on the adsorption/desorption capacity of activated carbon electrodes due to its high surface area. READ MORE

4. 3. BCP Lithography Defined Arrays of InAs NWs Grown Using MOVPE with Au Seeds

   University essay from Lunds universitet/Lunds Tekniska Högskola; Lunds universitet/Fasta tillståndets fysik

   Author : Björn Landeke-Wilsmark; [2022]
   Keywords : Physics and Astronomy;

   Abstract : In this report we outline a detailed process flow for a quick and inexpensive implementation of large dense arrays of InAs nanowires (NWs) grown in the reactive ion etching/etched (RIE) pores of a SiO2/SiNx mask on top of an InAs/Si(111) substrate. The self-assembled (hexagonally close-packed) pattern of poly(methyl-methacrylate) (PMMA) cylinders in a poly(styrene) (PS) matrix adopted by a linear diblock poly(styrene-block-methyl-methacrylate) P(S-b-MMA) block-copolymer (BCP) was transferred to the dielectric stack (consisting of a ≈10 nm plasma enhanced chemical vapour deposition/deposited (PECVD) SiNX layer topped by a thin atomic layer deposition/deposited (ALD) SiO2 film) using a two-step RIE procedure. READ MORE

5. 4. Template-assisted Electrodeposition and Model Electrodes Studied by Electron Microscopy and High Energy X-ray Diffraction

   University essay from Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

   Author : Hanna Sjö; [2022]
   Keywords : Physics and Astronomy;

   Abstract : There is a great interest in studying detailed changes at electrode surfaces during electrochemical processes to better understand the electrochemical reactions at the electrode surface-liquid interface and improve the electrode efficiency. The Au(110) surface has a known (1$\times$2) missing row reconstruction in vacuum conditions, which can change into higher-order (1$\times$3), (1$\times$5), and (1$\times$7) depending on environment. READ MORE

6. 5. Dendrite suppression during electrodeposition on lithium metal through molecular level design

   University essay from KTH/Kemi

   Author : Lukas Lekberg; [2022]
   Keywords : Dendrite; Density functional theory; Solid lithium battery;

   Abstract : Här undersöks en strategi som behandlar dendrittillväxt på en solid litiumanod i ett litiumbatteri. Med hjälp av täthetfunktionalsteori adsorberades fyra flytande kristaller på litiumytan vilket ledde till en gränsskiktsstabilisering. Denna stabilisering har i en tidigare rapport länkats till dendrittillväxt i en fasfältsmodell. READ MORE