Search for dissertations about: "Astrid Pundt"

Found 2 swedish dissertations containing the words Astrid Pundt.

2. 1. Synthesis and Characterisation of Potential Hydrogen Storage Materials

   Author : Emil Johansson; Björgvin Hjörvarsson; Astrid Pundt; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physics; Hydrogen; adsorption; absorption; thermodynamics; thin films; carbon nanostructures; Fysik; Physics; Fysik;

   Abstract : The dissociative and non-dissociative hydrogen uptake in carbon nanostructures and metallic films were investigated by measurements and analysis of solubility isotherms. The total, non-dissociative, uptake for multi-walled nano-barrels and amorphous nanoporous carbon was determined to be 6.2 and 4.2 wt. READ MORE

4. 2. Thermodynamics of Hydrogen in Confined Lattice

   Author : Xin Xiao; Hjörvarsson Björgvin; Max Wolff; Astrid Pundt; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; thermodynamics hydrogen superlattice;

   Abstract : Three of the most important questions concerning hydrogen storage in metals are how much hydrogen can be absorbed, how fast it can be absorbed (or released) and finally how strongly the hydrogen is bonded. In transition metals hydrogen occupies interstitial sites and the absorption as well as desorption of hydrogen can be fast. READ MORE