Supplier Spotlight

Video Exclusives

The next-gen valvetrain?

gtr

Camcon Automotive has developed a digitally controlled intelligent valve operation, which it states can significantly increases engine economy and flexibility.


EV lap records

gtr

NIO showcases its blistering Nurburgring Nordschleife lap time, as it topples the existing record.


Click here/on image to watch video

Web Exclusives

« back to listing

Researchers make progress on fuel cell catalyst efficiency

European researchers have revealed their findings on a new platinum-based catalyst for fuel cell applications.

 

Researchers from the Technical University of Munich in collaboration with other institutions throughout France and the Netherlands have revealed their findings on a new platinum-based catalyst for fuel cell applications.

The group says that the platinum catalyst, which helps produce oxygen as part of the fuel cell’s operation, is a key component of the engine, but that only a few particularly exposed areas of the platinum, the so-called active centers, are catalytically active.

The research set out to determine what makes particular areas of the catalyst active. The group says that a common method used in developing catalysts and in modeling the processes that take place on their surfaces is computer simulation, but as the number of atoms increases, quantum chemical calculations quickly become extremely complex.

The team has developed a new methodology, which it calls ‘coordination-activity plots’, to correlate geometric and adsorption properties. In order to validate the accuracy of their new methodology, the researchers computationally designed a new type of platinum catalyst for fuel cell applications. The model catalysts were prepared experimentally using three different synthesis methods. In all three cases, the catalysts showed up to three and a half times greater catalytic activity.

“This work opens up an entirely new way for catalyst development: the design of materials based on geometric rationales which are more insightful than their energetic equivalents,” says group scientist Federico Calle-Vallejo. “Another advantage of the method is that it is based clearly on one of the basic principles of chemistry: coordination numbers. This significantly facilitates the experimental implementation of computational designs.”

“With this knowledge, we might be able to develop nanoparticles that contain significantly less platinum or even include other catalytically active metals,” says Professor Aliaksandr S. Bandarenka, tenure track professor at the Technical University of Munich. “And in future we might be able to extend our method to other catalysts and processes, as well.”

The research was funded by the European Union’s Fuel Cells and Hydrogen Initiative, the Netherlands Organization for Scientific Research, the German Research Council, the Cluster of Excellence Nanosystems Initiative Munich and Ruhr Explores Solvation, and the Helmholtz Energy Alliance.

October 20, 2015

 

20 October 2015

Read Latest Issue

International Engine of the Year Awards
Read Latest Issue
Read Latest Issue

Web Exclusive Articles

Engines on test: Toyota 2ZR-FE
A new body, which brings increased strength and lighter weight to the party alongside those looks, plug-in capability, and a solar roof mean that whilst familiar, there's an awful lot of all-new in the 2017 Toyota Prius
Read Now

Lowering Friction in timing chain drive systems
DSM Engineering Plastics outlines the importance of timing chain drive systems in the overall role of the IC engine, and as regulators continue to press for more efficient engines timing chains are the one area that can yield further gains
Read Now

Engines on test: Lexus 2UR-GSE 5.0-liter V8
The 5.0-liter, naturally aspirated Lexus GS F is most definitely party up front, business out back; much like a reverse mullet. Only the Japanese super sedan carries it off with much, much more class - and dignity
Read Now


Supplier Spotlight

Supplier SpotlightClick here for listings and information on leading suppliers covering all aspects of the engine technology industry. Want to see your company included? Contact aboobaker.tayub@ukimediaevents.com for more details.

فروشگاه اینترنتی فروشگاه اینترنتی سیستم همکاری در فروش کانال تلگرام چت روم دانلود فیلم مرکز خرید ایرانیان

Submit your industry opinion

Industry BlogDo you have an opinion you'd like to share with the engine technology community? We'd like to hear your views and opinions on the leading issues shaping the industry. Share your comments by sending up to 500 words to d.slavnich@ukimediaevents.com

Submit Your Recruitment Ad

Recruitment AdTo send us your recruitment advertising or to receive information on placing a banner please email aboobaker.tayub@ukimediaevents.com