Picture of an optical laser setup illuminated in green laser light.

Junior Research Group "Laser-based synthesis of nanomaterials for energy research" Welcome to the website of the Reichenberger research group

The group of Dr. Sven Reichenberger (middle). For enlarged view, click the image.

LIKELY - Iridiumkatalysatorentwicklung auf Basis oberflächenmodifizierter Keramikträger

Für den Einsatz als anodische Elektroden bei Polymerelektrolytmembran (PEM) Wasserelektrolyseuren müssen korrosionsbeständige Materialien wie z. B. Keramiken genutzt werden. Um die elektrische Leitfähigkeit an der Kontaktfläche zu erhöhen, werden diese im Rahmen des Projekts mit dotiertem Silizium beschichtet. Mittels Laserablation sollen Iridium-Nanopartikel generiert werden, welche als Katalysatormaterial an den oberflächenmodifizierten Keramikträgern eingesetzt werden. Ziel ist es, die Funktionalität der neu entwickelten Elektroden im Elektrolyse-Bereich zu validieren.

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Portrait von Simon Siebeneicher. Lächelnder blonder Mann.

New Vice-Groupleader – Simon Siebeneicher

We are happy to announce that Simon Siebeneicher has become the new vice group leader of the Reichenberger-group. With his new position he will not only greatly support Dr. Sven Reichenberger in the daily business, but also coordinate a task force that will constantly test and evaluate current work flows as well as safety and health regulations. As the talented organizer and optimizer that he provenly is, he will discover remaining potentials for improvement and ensure an ongoing optimization of our work flow and safety strategies. Exploiting his organizational talent even further, he will also coordinate the planning process of our regular group activities in the future.

Perspective of Surfactant-Free Colloidal Nanoparticles in Heterogeneous Catalysis

Top downloaded review article in ChemCatChem

We are happy to announce that the review article "Perspective of Surfactant-Free Colloidal Nanoparticles in Heterogeneous Catalysis" has become one of the top 10 % most downloaded and read articles (2018-2019) in ChemCatChem.

56 mg gold platelet next to a 1 cent coin and a colloid with 58mg of gold inside.
56 mg gold platelet next to a 1 cent coin and a colloid with 58mg of gold inside.

How much Gold is in this bottle? Guessing-Contest

We finished drawing the winners! 
The three closed guesses were given by the following IDs:


If you are one of lucky ones, please mail us under with the subject WissensnachtRuhr and tell us the name with which you participated.

For everyone else: The bottle contained 58.35 mg (0,05835 g) Gold, which, only counting the material costs, is worth about 1,92€. ​We made some tangible comparison photos, you'll find here.

Can you calculate back to this mass (roughly) with this hints given?

Volume: 1 litre
Number of Particles: 721.
Size of nanoparticles (Diameter) d=20 nanometres)

Gold-Nanoparticle-Colloid in a 1 litre bottle
Gold-Nanoparticles in Water.

How much Gold is in this bottle? Guessing-Contest

The drawing of the winners has begun! On the WissensnachtRuhr you were able to enter a contest to estimate the total mass of nanoparticles in a bottle of gold colloid. The three closed guesses will win a prize. 

If anyone wants to play for fun --> This was the contest:
How much Gold (mass) is in the bottle shown on the left?
Volume: 1 litre
Number of Particles: 721.
Size of nanoparticles (Diameter) d=20 nanometres)

We'll announce the correct answers and our winners in this week, so stay tuned!

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Visit us in the NanoEnergieTechnickZentrum (NETZ) on the Wissensnacht Ruhr!

Visit the AG-Marzun on the Wissensnacht Ruhr!

Have you always wanted to know how a laser works? 
Are you wondering how Beethoven sounds like when played on a laser?
Do you know how simple it can be to produce nanoparticles?

Then come visit us on the 28th September in the NETZ on the Wissensnacht Ruhr!
We'll show you lasers and many more exciting topics from the Nano-World in the AG Marzun.

Hint: You can also engrave Pens in our Lab and win at a Nano-Contest ;)

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We receive funding from:

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Contact / Adress

NETZ - NanoEnergieTechnikZentrum
Universität Duisburg-Essen
Carl-Benz-Str. 199
47057 Duisburg
For older Navigation-Devices:
Carl-Benz-Str. 201, 47057 Duisburg

Tel.: 0201 / 183 - 3145
Fax: 0201 / 183 - 3049