We Continue the Work of Those
Who Were the First.

  • Electrotechnics
  • Electrical Engineering
  • Light & Lighting
  • Power Engineering
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Current issue

ELEKTRO 2/2019 was released on February 13th 2019. Its digital version will be available on March 11th 2019.

Topic: Electrical appliances – switching, protective, signalling and special

Main Article
Advanced power converter topology
Smart Cities (part 7)

SVĚTLO (Light) 1/2019 was released on February 4th 2019. Its digital version will be available on March 5th 2019.

Fairs and exhibitions
Invitation at LIGHT IN ARCHITECTURE exhibition
Prolight + Sound 2019: keep up with time
The light at For Arch 2018 fair

Public lighting
Lights of towns and communities 2018 – the meeting at the round table

Creating longer-lasting fuel cells

27.09.2017 | Washington University in St. Louis | source.wustl.edu

Fuel cells could someday generate electricity for nearly any device that’s battery-powered, including automobiles, laptops and cellphones. Typically using hydrogen as fuel and air as an oxidant, fuel cells are cleaner than internal combustion engines because they produce power via electrochemical reactions. Since water is their primary product, they considerably reduce pollution.

One issue that impacts the lifetime of the fuel cell is the oxidation, or breakdown, of its central electrolyte membrane. The process leads to formation of holes in the membrane and can ultimately cause a chemical short circuit.

Better fuel-cells

An engineering team at Washington University in St. Louis has developed a new way to take a look at the rate at which oxidation occurs. Using fluorescence spectroscopy inside the fuel cell, they are able to probe the formation of the chemicals responsible for the oxidation, namely free radicals, during operation. The technique could be a game changer when it comes to understanding how the cells break down, and designing mitigation strategies that would extend the fuel cell’s lifetime.

Read more at Washington University in St. Louis

Image Credit: Shutterstock

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