Sökning: "Platinum Alumina"

Visar resultat 1 - 5 av 31 avhandlingar innehållade orden Platinum Alumina.

1. 1. Low-Temperature Oxidation of CO and Volatile Organic Compounds over Supported Platinum Catalysts

   Författare :Karl Arnby; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; hexamethyldisiloxane; alumina; catalytic deactivation; environmental catalysis; platinum; volatile organic compounds; carbon monoxide; low-temperature activity;

   Sammanfattning : The catalytic oxidation of carbon monoxide (CO) and volatile organic compounds (VOC) is important for the reduction of harmful emissions from both vehicles and from stationary sources. Both these applications suffer from poor catalytic efficiency at lower temperatures. LÄS MER

3. 2. Platinum Nanoparticles Prepared in Water-in-Oil Microemulsions -Particle Formation, Support Interaction and Catalytic Activity

   Författare :Hanna Härelind Ingelsten; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; platinum; lean NO reduction; aluminium silicate; catalytic activity; silica; w o microemulsion; hydrocarbons; alumina; nanoparticle formation; catalyst preparation;

   Sammanfattning : .... LÄS MER

4. 3. Catalysis for Lean NOx Reduction - Aspects of Catalyst Synthesis and Surface Acidity

   Författare :Hanna Härelind Ingelsten; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; lean NOx reduction; silica; alumina; FTIR; surface acidity; model catalysts; platinum; HZSM-5; w o microemulsion; aluminum-silicate; hydrocarbon;

   Sammanfattning : From both economic and environmental perspectives it is desirable to reduce the consumption of fossil fuels. One route to increase the fuel efficiency for vehicles is operation in oxygen excess. However, a major problem with this technique is the lean environment, which obstructs catalytic reduction of nitrogen oxides (NOx) to harmless nitrogen. LÄS MER

5. 4. Methods of studying coke formation

   Författare :Mikael Larsson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; hydrogen; propane dehydrogenation; platinum; coke; catalysis; catalyst deactivation; deuterium; temperature-programmed oxidation; TPO; tin; alumina;

   Sammanfattning : .... LÄS MER

7. 5. Promoting catalytic oxidation for emission abatement using make-up gases

   Författare :Martin Petersson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; alumina; catalytic oxidation; sulfur dioxide; propane; platinum; ozone; promotion; carbon monoxide;

   Sammanfattning : .... LÄS MER