Sökning: "copper I oxide"

Visar resultat 26 - 30 av 30 avhandlingar innehållade orden copper I oxide.

1. 26. Environmental and health aspects of corrosion– importance of chemical speciation

   Författare :Yolanda Hedberg; Inger Odnevall Wallinder; Anna Karin Borg Karlsson; Susanna Wold; KTH; []
   Nyckelord :;

   Sammanfattning : During the last decades, the interest in corrosion of metals and alloys from an environmental and health perspective has increased rapidly as a consequence of stricter environmental and human exposure legislations, their extensive use as implant materials and an increasing understanding related to occupational and/or daily exposure to airborne particles. Corrosion-induced metal release, however, needs to be understood in detail and to include knowledge related to chemical speciation, i. LÄS MER

3. 27. Density Functional Theory Studies of Small Supported Gold Clusters and Related Questions : What a Difference an Atom Makes

   Författare :Martin Amft; Natalia Skorodumova; Olle Eriksson; Hannu Häkkinen; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Gold clusters; CO oxidation; graphene; spin-orbit coupling; van der Waals interactions; thermally excited vibrations; Condensed matter physics; Kondenserade materiens fysik; Physics with spec. in Atomic; Molecular and Condensed Matter Physics; Fysik med inriktning mot atom- molekyl- och kondenserande materiens fysik;

   Sammanfattning : During the last decades the specific manipulation of matter on the (sub-) nanometer scale, also known as nanoscience, became possible by technologies such as the scanning tunneling microscope. Nanocatalysts, i.e. catalytic active structures of up to a few nanometers in size, belong to this rather new class of materials. LÄS MER

4. 28. Magmatic and hydrothermal processes in relation to the formation of the Aitik Cu-Au deposit, Northern Sweden

   Författare :Christina Wanhainen; Luleå tekniska universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Malmgeologi; Ore Geology;

   Sammanfattning : Aitik is a disseminated Cu-Au deposit with an annual production of 18 million metric tons of ore containing 0.38 percent copper and 0.22 parts per million gold. It is situated in northern Sweden in 1. LÄS MER

5. 29. Development of a methanol reformer for fuel cell vehicles

   Författare :Bård Lindström; KTH; []
   Nyckelord :methanol; fuel cell vehicles; reforming; catalysis; partial oxidation; steam reforming; combined reforming;

   Sammanfattning : Vehicles powered by fuel cells are from an environmentalaspect superior to the traditional automobile using internalcombustion of gasoline. Power systems which are based upon fuelcell technology require hydrogen for operation. The ideal fuelcell vehicle would operate on pure hydrogen stored on-board. LÄS MER

7. 30. Carbon nanomaterial-based interconnects, integrated capacitors and supercapacitors

   Författare :Muhammad Amin; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; carbon nanotubes; Integrated capacitors; vertically aligned carbon nanofibers; Interconnects; PECVD; Interdigitated micro-supercapacitors;

   Sammanfattning : The constant miniaturization and steady performance improvement of electronics devices have generated innovative ideas such as internet of thing (IoT), which also includes devices with integrated energy sources. The high performance is conceived by the high density of the devices on a chip leading to a high density of interconnects, to connect these devices to outside world. LÄS MER