Vehicle efficiency
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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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Vehicle efficiency

Vehicle efficiency

DonatasKveselys

Florian Bergmann


Need to improve tires

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

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


Enhancing fuel itself

Enhancing fuel itself

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


Already available h2oil additive

Already available H2OIL additive

Fig. 2: F2-21 additive


Advantages

Advantages

  • Fuel Saving up to 25%

  • Increased engine power

  • Large reduction of emissions


Efficency loss in fuel cell

Efficency loss in fuel cell

sluggish oxygen reduction at the cathode is one main reason for efficiency loss

=> catalyst?


Finding catalyst for cathode

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?


Todays solution platinum pt

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?


Tomorrows solution n cnt

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


Progress

Progress

First (vertically aligned) N-doped CNT was synthesized in 2009

still in fundamental Research


Conclusion

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


References

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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