Sökning: "Chemical monitoring"
Visar resultat 1 - 5 av 370 avhandlingar innehållade orden Chemical monitoring.
1. Green aromatics for a bio-based economy - Valorization of biomass derived model compounds over zeolites studied by online analysis
Sammanfattning : In the strive towards sustainable chemical production, its carbon-based products can no longer be produced from fossil resources but need to be manufactured from a renewable feedstock. Simple aromatic building blocks like benzene, toluene and xylenes (BTX) can be obtained by catalytic valorization of biomass derived platform molecules such as furans provided efficient catalysts can be formulated. LÄS MER
2. Synthesis of Nanoparticles and Organometallic Complexes for Gas Sensing
Sammanfattning : Currently metal nanoparticles (NPs) are a subject of interest regarding many applications, in particular chemical gas sensing, as the associated environmental issues are of substantial importance. Metal NPs are attractive due to their fascinating optical properties and primarily, localized surface plasmon resonance (LSPR) which strongly depends on size and shape of NPs. LÄS MER
3. Dynamics of Enzyme Immobilization in Mesoporous Silica Particles
Sammanfattning : The focus of this thesis is placed on the dynamic behavior of proteins in confining environments which is studied as a scientific challenge for a deeper understanding of the immobilization mechanism and a better designing of enzyme immobilization in porous materials. Enzymes are immobilized in porous materials to improve the enzyme activity and simplify their purification from the product solution in biocatalytic applications. LÄS MER
4. Catalytic tar cleaning of biomass-derived gas with simultaneous catalyst regeneration
Sammanfattning : Tar cleaning of raw gas from biomass gasification is a necessary operation before the gas can be used as feedstock for synthetic fuels. The technology for gas cleaning that is commercially available today (scrubber systems), is associated with problems like heat penalties and loss of the chemically stored energy within the tars. LÄS MER
5. Chemical Doping of Conjugated Polymers for Thermoelectric Applications
Sammanfattning : The ongoing development of interconnected and wearable small devices, which together make up the so-called Internet of Things, is driving a rising need for autonomous and on-site energy supplies. Heat, an abundant and often wasted energy source, can be harnessed through thermoelectric generators that can directly convert heat into electricity. LÄS MER