Sökning: "nanotubes"

Visar resultat 1 - 5 av 218 avhandlingar innehållade ordet nanotubes.

1. 1. Nanotubes for Battery Applications

   Författare :Sara Nordlinder; Kristina Edström; Torbjörn Gustafsson; M. Stanley Whittingham; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Inorganic chemistry; vanadium oxide; nanotubes; lithium battery; Li-ion battery; XRD; PES; electrochemistry; Oorganisk kemi; Inorganic chemistry; Oorganisk kemi;

   Sammanfattning : Nanomaterials have attracted great interest in recent years, and are now also being considered for battery applications. Reducing the particle size of some electrode materials can increase battery performance considerably, especially with regard to capacity, power and rate capability. LÄS MER

3. 2. Spin stripes in nanotubes

   Författare :Alex Kleiner; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; magnetic field; spin stripes; nanotubes; energy gap; hybridization;

   Sammanfattning : .... LÄS MER

4. 3. Cellulose–Assisted Dispersion of Carbon Nanotubes : From Colloids to Composites

   Författare :Alireza Hajian; Lars Berglund; Milo Shaffer; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Nanocelluloses; Carbon nanotubes; Composites; Colloids; Fiber- och polymervetenskap; Fibre and Polymer Science;

   Sammanfattning : It is a challenge to disperse nanoparticles to obtain a nanostructured composite. This thesis aims at providing a new route to fabricate carbon nanotube (CNT) composites and suggests mechanisms for nanocellulose–CNT interactions. This route is based on unmodified CNT dispersed in water with the help of nanocellulose. LÄS MER

5. 4. Dispersing Carbon Nanotubes: Towards Molecular Understanding

   Författare :Ricardo M. Ferreira Fernandes; Istvan Furo; Eduardo Marques; Philippe Poulin; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; carbon nanotubes; dispersion; surfactants; polymers; adsorption; liquid crystals; nuclear magnetic resonance; self-diffusion; Kemi; Chemistry;

   Sammanfattning : Carbon nanotubes (CNTs) exhibit unique and fascinating intrinsic electrical, optical, thermal or mechanical properties that lead to a plethora of potential applications in composite materials, electronics, energy storage, medicine, among others. However, the manipulation of nanotubes is not trivial and there are significant difficulties to overcome before achieving their full potential in applications. LÄS MER

7. 5. Low temperature growth of carbon nanotubes

   Författare :Staffan Dittmer; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; acetylene; iron catalyst; low temperature growth; electric field alignment; chemical vapor deposition; tungsten electrodes; ethylene; on-clip growth; localised resistive heating; carbon nanotubes;

   Sammanfattning : .... LÄS MER