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Det svenska elnätet är i behov av stora investeringar och flexibilitetsåtgärder för att upprätthålla ökad efterfrågan på energi och effekt, samt ökad andel variabel förnybar elproduktion. Ett sådant tillvägagångssätt är det ökade införandet av effekttariffer för småkunder bland svenska nätoperatörer som syftar till att uppmuntra slutkonsumenter att utjämna last. Med batterilagring i hemmet kan konThe Swedish grids are in need of large investments and flexibility measures in order to sustain increased power and energy demand and increased penetration of intermittent renewable electricity production. One such measure is the larger introduction of power tariffs among Swedish network operators for their small customer segment, intended to incentivize end consumers to level out load. With resid

Coherent harmonic generation can be obtained by means of frequency up-conversion of a high-power external laser focused into the first undulator of an optical klystron. The standard configuration is based on a single-pass device, where the seed laser is synchronized with an electron beam entering the first undulator of the optical klystron after being accelerated using a linear accelerator. As an

We focus our research on polymers for energy and sustainability. The activities span across macromolecular design, synthesis and characterization, polymer self-assembly, and material structure and properties. We are especially motivated by the global challenges concerning energy and sustainability that drive the research for new multifunctional and high-performing polymer materials. This requires

https://www.cas.lu.se/research/polymer-science-and-technology/jannasch-group - 2026-06-05

Iridium pincer complexes are among the most versatile catalysts for bond‑activation chemistry, yet their performance is often governed as much by off-cycle speciation and inhibition as by intrinsic reactivity. This thesis investigates how pincer ligand design influences the structure, dynamics, and catalytic behaviour of iridium complexes and their relevance to acceptorless dehydrogenation.InitialIridium pincer complexes are among the most versatile catalysts for bond‑activation chemistry, yet their performance is often governed as much by off-cycle speciation and inhibition as by intrinsic reactivity. This thesis investigates how pincer ligand design influences the structure, dynamics, and catalytic behaviour of iridium complexes and their relevance to acceptorless dehydrogenation.Initial

Vi vet att laddade partiklar sänder ut elektromagnetisk strålning då de tvingas följa en krökt bana. Denna strålning kallas synkrotronstrålning, och upptäcktes i mitten av 1900-talet. Sedan dess har denna typ av strålning funnit tillämpningar inom flera forskningsområden såsom kemi, biologi, medicin och materialvetenskap. För att uppfylla de växande kraven på vissa strålningsegenskaper, är partike

Coherent radiation from a relativistic electron beam is a valuable way to overcome the present limitations of conventional lasers and synchrotron radiation light sources. The typical scheme has electrons, directly from a linac, in a single-pass interaction with a laser pulse in the presence of a static undulator magnetic field. We demonstrate that a storage-ring free-electron laser can also achiev

Longitudinal coupled-bunch instabilities are driven by monopole higher-order modes (HOMs) in the active and passive radio-frequency (rf) cavities at the MAX IV 3 GeV electron storage ring. By combining different beam and rf-based techniques, we have performed a systematic survey of the properties of these resonant modes as a function of cavity temperatures and fundamental mode frequency. This info