Search for dissertations about: "Chemical Sensor"

Showing result 11 - 15 of 198 swedish dissertations containing the words Chemical Sensor.

  2. 11. Interaction of CO and methane with platinum, Low-temperature oxidation and sensor response mechanisms

    Author : Elin Becker; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CO; Low-temperature activity; XAS; In situ spectroscopy; Environmental catalysis; Support material; Periodic operation; XANES; Chemical sensors;

    Abstract : The aim of this thesis project was to increase the understanding of the mechanisms for low-temperature oxidation of carbon monoxide and methane over supported platinum catalysts. In situ spectroscopic methods together with mass spectrometry were used to study the catalysts during both steady state and transient conditions. READ MORE

  4. 12. Conjugated Polymer-based Conductive Fibers for Smart Textile Applications

    Author : Tariq Bashir; Högskolan i Borås; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; electro-active fibers; poly 3; 4-ethylenedioxythiophene PEDOT ; viscose; polyester; chemical vapor deposition CVD process; electrical characterizations; smart textiles; stretch sensor; Organic Electronics; Smart Textiles; textile yarns; Textiles and Fashion General ; Textil och mode generell ;

    Abstract : Electrically conductive or electro-active fibers are the key components of smart and interactive textiles, which could be used in medical, sports, energy, and military applications in the near future. The functionalization of high-performance textile yarns/fibers with conjugated polymers can produce conductive fibers with better electro-mechanical properties, which is difficult with commonly used spinning techniques. READ MORE

  5. 13. Polymer-Nanoparticle Hybrid Materials for Plasmonic Hydrogen Detection

    Author : Iwan Darmadi; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; hydrogen; nanofabrication; hybrid material; nanocomposite; polymer; alloy; sensor; nanoplasmonic; palladium;

    Abstract : Plasmonic metal nanoparticles and polymer materials have independently undergone rapid development during the last two decades. More recently, it has been realized that combining these two systems in a hybrid or nanocomposite material comprised of plasmonically active metal nanoparticles dispersed in a polymer matrix leads to systems that exhibit fascinating properties, and some first attempts had been made to exploit them for optical spectroscopy, solar cells or even pure art. READ MORE

  6. 14. Solving Analytical Challenges with Thin Layer Electrochemistry

    Author : Alexander Wiorek; Gaston A. Crespo; Maria Cuartero; Gregoire Herzog; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Thin Layer Electrochemistry; Polyaniline; Carbon nanotubes; Ion-selective electrodes; Ionophores; Electrochemical Sensors; Alkalinity; Deionization; Chemical Imaging; Tunnskiktselektrokemi; polyanilin; kolnanorör; jonselektiva elektroder; jonoforer; elektrokemiska sensorer; Alkalinitet; avjonisering; chemical imaging; Kemi; Chemistry;

    Abstract : The decentralization of chemical sensing to attain environmental-related information is today highly desirable to increase the knowledge on biological or geological events as well as effluents. The current state of the field moves toward submersible probes; chemical sensors implemented into submersible devices for quantifying analytes over extended times. READ MORE

  7. 15. Aspects of Flexographic Print Quality and Relationship to some Printing Parameters

    Author : Johanna Johnson; Lars Järnström; Magnus Lestelius; Peter Rättö; Erik Blohm; Jouko Peltonen; Karlstads universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Flexography; Print Quality; Liner; Board; Newsprint; Water-borne ink; Dynamic Pressure; Plate Properties; Wetting; Chemical engineering; Kemiteknik; Chemical Engineering; Kemiteknik;

    Abstract : Flexographic printing is a common printing method in the packaging field. The printing method is characterized primarily by the flexible printing plate and the low viscosity inks which make it suitable for use on almost any substrate. READ MORE