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Vehicle efficiency

Vehicle efficiency. Donatas Kveselys Florian Bergmann. Need to improve tires. Car tires account for 20% fuel consumption Estimated wear off 40,000km. Fig. 1: Tires magic triangle. Nanotech tire performance enhancement.

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Vehicle efficiency

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  1. Vehicle efficiency DonatasKveselys Florian Bergmann

  2. Need to improve tires • Car tires account for 20% fuel consumption • Estimated wear off 40,000km Fig. 1: Tires magic triangle

  3. Nanotech tire performance enhancement • Nanoprene – made from polymerized styrene and butadiene. Particle size 50nm • Reduced wear, better grip, maintained rolling resistance • Nanosize silica particles • Enhanced rolling resistance and wet traction

  4. Enhancing fuel itself • NanoTech Fuel Additive - stable, three dimensional lattice structure consisting of nano-clusters, evenly distributed within the fuel in a tank.

  5. Already available H2OIL additive Fig. 2: F2-21 additive

  6. Advantages • Fuel Saving up to 25% • Increased engine power • Large reduction of emissions

  7. Efficency loss in fuel cell sluggish oxygen reduction at the cathode is one main reason for efficiency loss => catalyst?

  8. Finding catalyst for cathode Properties: • Good eletronic conductivity • Chemical and structural stability during oxygen adsorption and reduction • Suitable operating temperature • High uptake of oxygen • Ability to decompose intermediate products as H2O2 • Chemical compatibility to electrolyte • Tollerant to contaminants (e.g. COx, NOx, SOx) => suitable catalyst?

  9. Todays solution: Platinum (Pt) Pt with carbon support: • Fulfils many conditions (e.g. conductivity, operating temperature) ...but... • is very sensitive to contamiants • is very expensive => alternative?

  10. Tomorrows solution: N-CNT? Nitrogen doped Carbon Nano tubes: • metal-free electrode • much better electrocatalytic activity • long-term operation stability • tolerance to CO-poisioning • High surface area • Good thermal stability

  11. Progress First (vertically aligned) N-doped CNT was synthesized in 2009 still in fundamental Research

  12. Conclusion • There are still many possibilities to improve efficiency... • ...which are in different states of development • As car industry is interested we reckon a quick progress

  13. References • Nanotechnology in automotive tires. Tires magic triangle, http://www.nanopinion.eu/sites/default/files/briefing_no.23_nanotechnology_in_automotive_tyres.pdf • Nanotechnology Additive Reduces Tire Wear, http://www.nanowerk.com/news/newsid=4106.php • NanoTech Fuel AdditiveH2OIL, http://www.h2oil.com/en/technology.php • Ph.D. Dissertation „Graphene Based Electrode Materials for Solar Cell and Electrochemical Oxygen Reduction“ by Qi Su, 2012/04/02, N-CNThttp://d-nb.info/1024517586/34 • Physical Chemistry Letters „Vertically Aligned Carbon Nanotube Arrays Co-doped with Phosphorus and Nitrogen as Efficient Metal-Free Electrocatalysts for Oxygen Reduction“ by Dingshan Yu, Yuhua Xue, and Liming Dai, 2012/09/17, http://engineering.case.edu/centers/afosrcasemuri/sites/engineering.case.edu.centers.afosrcasemuri/files/Yu-2012-Vertically%20aligned%20carbon%20nanotube.pdf • Alkalinecell, http://commons.wikimedia.org/wiki/File:Alkalinecell_deutsch.png

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