Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > Renewable and Clean

Abstract:
New kind of fuel cell delivers energy and fine chemicals with no waste from renewable raw materials

Renewable and Clean

Weinheim, Germany | Posted on October 1st, 2010

The concept of converting renewable raw materials so cleverly that the same process simultaneously produces both energy and industrially desirable chemicals has been high on the wish-list for those who seek environmentally friendly and resource-saving chemistry. The process should also not release any carbon dioxide. In the journal Angewandte Chemie, Hansjörg Grützmacher, Francesco Vizza, and Claudio Bianchini and their co-workers from the ETH in Zürich (Switzerland) and the Consiglio Nazionale delle Ricerche (CNR) in Sesto Fiorentino (Italy) have now introduced a new kind of fuel cell: an organometallic fuel cell that efficiently converts alcohols and sugars into carboxylic acids.

Differing from established alcohol fuel cells—the direct alcohol fuel cell and the enzymatic biofuel cell—the organometallic fuel cell (OMFC) works in a completely different way. The secret behind its success is a special molecular complex of rhodium metal that functions as an anode catalyst. The scientists deposited the complex onto a carbon powder support. The interesting thing is that the active catalyst forms during the chemical reaction, and changes step-by-step throughout the catalytic cycle. In this way, a single metal complex forms different catalysts that are each specific for an individual reaction step: the conversion of an alcohol (e.g. ethanol) into the corresponding aldehyde, making the aldehyde into the corresponding carboxylic acid (e.g. acetic acid), and transferring protons (H+) and electrons. As well as alcohols, this system can also convert sugars such as glucose in the same way.

The researchers hope that their new approach could turn out to be a breakthrough in fuel-cell technology. A particular advantage of their new method is that molecular metal complexes are soluble in various solvents, which allows them to be very finely dispersed over very small surfaces. In addition, they provide a very high power density. This could be a way to further miniaturize fuel cells for use as power sources for biological applications like heart pacemakers and biosensors, as well as for the in-vivo monitoring of metabolic processes.

Through the right combination of a tailored molecular catalyst structure and a suitable support material, it could be possible to develop future fuel cells that very selectively convert starting materials with multiple alcohol groups into valuable premium chemicals without the generation of waste materials. This task is very difficult to accomplish by traditional methods.

Author: Hansjörg Grützmacher, ETH Zürich (Switzerland), www.gruetzmacher.ethz.ch/people/hansjoerg

Title: A Biologically Inspired Organometallic Fuel Cell (OMFC) That Converts Renewable Alcohols into Energy and Chemicals

Angewandte Chemie International Edition 2010, 49, No. 40, 7229-7233, Permalink to the article: dx.doi.org/10.1002/anie.201002234

####

For more information, please click here

Copyright © Angewandte Chemie International Edition

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

The power of perovskite: OIST researchers improve perovskite-based technology in the entire energy cycle, from solar cells harnessing power to LED diodes to light the screens of future electronic devices and other lighting applications August 18th, 2017

Gold nanostars and immunotherapy vaccinate mice against cancer: New treatment cures, vaccinates mouse in small proof-of-concept study August 18th, 2017

Researchers printed graphene-like materials with inkjet August 17th, 2017

Candy cane supercapacitor could enable fast charging of mobile phones August 17th, 2017

Possible Futures

The power of perovskite: OIST researchers improve perovskite-based technology in the entire energy cycle, from solar cells harnessing power to LED diodes to light the screens of future electronic devices and other lighting applications August 18th, 2017

Gold nanostars and immunotherapy vaccinate mice against cancer: New treatment cures, vaccinates mouse in small proof-of-concept study August 18th, 2017

Researchers printed graphene-like materials with inkjet August 17th, 2017

Candy cane supercapacitor could enable fast charging of mobile phones August 17th, 2017

Sensors

Researchers printed graphene-like materials with inkjet August 17th, 2017

Sensing technology takes a quantum leap with RIT photonics research: Office of Naval Research funds levitated optomechanics project August 10th, 2017

Giant enhancement of electromagnetic waves revealed within small dielectric particles: Scientists have done for the first time direct measurements of giant electromagnetic fields July 8th, 2017

Bosch announces high-performance MEMS acceleration sensors for wearables June 27th, 2017

Announcements

The power of perovskite: OIST researchers improve perovskite-based technology in the entire energy cycle, from solar cells harnessing power to LED diodes to light the screens of future electronic devices and other lighting applications August 18th, 2017

Gold nanostars and immunotherapy vaccinate mice against cancer: New treatment cures, vaccinates mouse in small proof-of-concept study August 18th, 2017

Researchers printed graphene-like materials with inkjet August 17th, 2017

Candy cane supercapacitor could enable fast charging of mobile phones August 17th, 2017

Environment

Freeze-dried foam soaks up carbon dioxide: Rice University scientists lead effort to make novel 3-D material August 16th, 2017

Two Scientists Receive Grants to Develop New Materials: Chad Mirkin and Monica Olvera de la Cruz recognized by Sherman Fairchild Foundation August 16th, 2017

New approach on research and design for CQD catalysts in World Scientific NANO August 2nd, 2017

Magnetized viruses attack harmful bacteria: Rice, China team uses phage-enhanced nanoparticles to kill bacteria that foul water treatment systems August 2nd, 2017

Fuel Cells

Engineers pioneer platinum shell formation process – and achieve first-ever observation August 11th, 2017

Argonne National Laboratory’s Continuous ALD Technology Licensed Exclusively to Forge Nano July 7th, 2017

Electrocatalyst nanostructures key to improved fuel cells, electrolyzers June 5th, 2017

Stanford scientists use nanotechnology to boost the performance of key industrial catalyst May 18th, 2017

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project