Nanotechnology Now

Our NanoNews Digest Sponsors
Heifer International



Home > News > Vom Klimakiller zum Rohstoff

November 28th, 2009

Vom Klimakiller zum Rohstoff

Abstract:
Grundsätzlich besteht bei dem Vorhaben, Kohlendioxid chemisch zu verwandeln, eine große Schwierigkeit: Das Molekül ist äußerst energiearm und damit recht reaktionsträge. Daher muss man ihm auf die Sprünge helfen, beispielsweise mit zugeführter Energie oder durch entsprechende Katalysatoren. Kürzlich berichteten Forscher vom Institute of Bioengineering and Nanotechnology in Singapur über eine neuartige Methanolsynthese, die unter milden Bedingungen recht effizient abläuft ("Angewandte Chemie", Bd. 121, S. 6770).

Als Katalysator verwendeten die Wissenschaftler ein sogenanntes heterozyklisches Carben. Dieses Molekül besitzt ein freies Elektronenpaar, welches an das Kohlendioxid-Molekül andockt und es auf diese Weise aktiviert. Als Wasserstoffquelle dient Hydrosilan. Da diese Substanz vergleichsweise teuer ist, suchen die Forscher nach günstigerem Ersatz.

Source:
faz.net

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Light-emitting tattoo engineered for the first time: Scientists at UCL and the IIT -Istituto Italiano di Tecnologia (Italian Institute of Technology) have created a temporary tattoo with light-emitting technology used in TV and smartphone screens, paving the way for a new type of March 4th, 2021

Dethroning Electrocatalysts for Hydrogen Production with Inexpensive Alternative Material March 3rd, 2021

Expanding the freedom of design: powder coating on FRP thanks to conductive gelcoats with graphene nanotubes March 3rd, 2021

CEA-Leti Announces 16 Papers to Be Presented At Photonics West 2021 and a Virtual Workshop on March 25 March 3rd, 2021

Chemistry

Boosting the efficiency of carbon capture and conversion systems: New design could speed reaction rates in electrochemical systems for pulling carbon out of power plant emissions January 25th, 2021

Physicists propose a new theory to explain one dimensional quantum liquids formation January 15th, 2021

Controlling chemical catalysts with sculpted light January 15th, 2021

Chemists describe a new form of ice December 25th, 2020

Possible Futures

Light-emitting tattoo engineered for the first time: Scientists at UCL and the IIT -Istituto Italiano di Tecnologia (Italian Institute of Technology) have created a temporary tattoo with light-emitting technology used in TV and smartphone screens, paving the way for a new type of March 4th, 2021

Dethroning Electrocatalysts for Hydrogen Production with Inexpensive Alternative Material March 3rd, 2021

Expanding the freedom of design: powder coating on FRP thanks to conductive gelcoats with graphene nanotubes March 3rd, 2021

CEA-Leti Announces 16 Papers to Be Presented At Photonics West 2021 and a Virtual Workshop on March 25 March 3rd, 2021

Announcements

Light-emitting tattoo engineered for the first time: Scientists at UCL and the IIT -Istituto Italiano di Tecnologia (Italian Institute of Technology) have created a temporary tattoo with light-emitting technology used in TV and smartphone screens, paving the way for a new type of March 4th, 2021

Dethroning Electrocatalysts for Hydrogen Production with Inexpensive Alternative Material March 3rd, 2021

Expanding the freedom of design: powder coating on FRP thanks to conductive gelcoats with graphene nanotubes March 3rd, 2021

CEA-Leti Announces 16 Papers to Be Presented At Photonics West 2021 and a Virtual Workshop on March 25 March 3rd, 2021

Environment

Producing more sustainable hydrogen with composite polymer dots UPPSALA UNIVERSITY February 12th, 2021

Arctic warming and diminishing sea ice are influencing the atmosphere: Researchers of the University of Helsinki have resolved for the first time, how the environment affects the formation of nanoparticles in the Arctic. The results give additional insight into the future of melt January 29th, 2021

Boosting the efficiency of carbon capture and conversion systems: New design could speed reaction rates in electrochemical systems for pulling carbon out of power plant emissions January 25th, 2021

Phytoplankton disturbed by nanoparticles: Due to its antibacterial properties, nanosilver is used in a wide range of products from textiles to cosmetics; but nanosilver if present at high concentrations also disrupts the metabolism of algae that are essential for the aquatic food November 27th, 2020

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




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project