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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

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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