Nanotechnology Now

Our NanoNews Digest Sponsors



Heifer International

Wikipedia Affiliate Button


android tablet pc

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

Dolomite to launch Meros TCU-100 temperature controller at Lab-on-a-Chip & Microarray World Congress September 15th, 2014

Fonon at Cutting-Edge of 3D Military Printing: Live-Combat Scenarios Could See a Decisive Advantage with 3D Printing September 15th, 2014

Rice rolls 'neat' nanotube fibers: Rice University researchers' acid-free approach leads to strong conductive carbon threads September 15th, 2014

Simple, Cost-Effective Method Proposed for Synthesizing Zinc Oxide Nanopigments September 15th, 2014

Possible Futures

Air Force’s 30-year plan seeks 'strategic agility' August 1st, 2014

IBM Announces $3 Billion Research Initiative to Tackle Chip Grand Challenges for Cloud and Big Data Systems: Scientists and engineers to push limits of silicon technology to 7 nanometers and below and create post-silicon future July 10th, 2014

Virus structure inspires novel understanding of onion-like carbon nanoparticles April 10th, 2014

Local girl does good March 22nd, 2014

Sensors

Simple, Cost-Effective Method Proposed for Synthesizing Zinc Oxide Nanopigments September 15th, 2014

First Colloid and Polymer Science Lecture awarded to Orlin D. Velev: Chemical engineer honored for outstanding research in colloid science September 12th, 2014

UT Arlington research uses nanotechnology to help cool electrons with no external sources September 11th, 2014

Development of Algorithm for Accurate Calculation of Average Distance Travelled by Low-Speed Electrons without Energy Loss that Are Sensitive to Surface Structure September 11th, 2014

Announcements

Dolomite to launch Meros TCU-100 temperature controller at Lab-on-a-Chip & Microarray World Congress September 15th, 2014

Fonon at Cutting-Edge of 3D Military Printing: Live-Combat Scenarios Could See a Decisive Advantage with 3D Printing September 15th, 2014

Rice rolls 'neat' nanotube fibers: Rice University researchers' acid-free approach leads to strong conductive carbon threads September 15th, 2014

Simple, Cost-Effective Method Proposed for Synthesizing Zinc Oxide Nanopigments September 15th, 2014

Environment

Iranian Nano Scientists Create Flame-Resistant Polymers September 13th, 2014

NanoStruck has a High Recovery Rate on Mine Tailings: retrieval of up to 96% of Gold, 88% of Silver and 86% of Palladium September 12th, 2014

Nanostruck announces 87.6% recovery of 56 GMS/ton silver tailings samples September 12th, 2014

Boosting armor for nuclear-waste eating microbes September 12th, 2014

Fuel Cells

Media Advisory: Minister Rempel to Announce Support for Alberta's Nanotechnology Sector June 20th, 2014

Evolution of a Bimetallic Nanocatalyst June 6th, 2014

University of Surrey collaborates with India and Tata Steel to revolutionise renewable energy March 26th, 2014

Novel membrane reveals water molecules will bounce off a liquid surface: Study may lead to more efficient water-desalination systems, fundamental understanding of fluid flow March 16th, 2014

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







© Copyright 1999-2014 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE