Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Baking Powder for Environmentally Friendly Hydrogen Storage

14.06.2011
Carbon dioxide neutral hydrogen storage with a bicarbonate/formate system

Hydrogen is under consideration as a promising energy carrier for a future sustainable energy economy. However, practicable solutions for the easy and safe storage of hydrogen are still being sought.

Despite some progress, no generally applicable solutions that meet the requirements of industry have been found to date. In the journal Angewandte Chemie Matthias Beller and his team at the Leibnitz Institute for Catalysis (Rostock, Germany) have now introduced a new approach to hydrogen storage that is based on simple salts of formic acid and carbonic acid.

Practical hydrogen storage materials must take up and give off hydrogen at standard pressure and room temperature, accommodate a large amount of hydrogen in as little space as possible, and release it rapidly and on-demand. Metal hydride tanks store hydrogen in a relatively manageable volume but are very heavy and expensive, as well as operating only at high temperatures or far too slowly. In addition to organic hydrogen storage materials, such as methane and methanol, researchers have been interested in formic acid (HCO2H) and its salts, known as formates, for the generation of hydrogen.

A fundamental problem with the use of these storage materials is the separation of the carbon dioxide formed when the hydrogen is released. The team from Rostock has now successfully used a special ruthenium catalyst that catalyzes both the release and uptake of hydrogen to establish a reversible, CO2-free hydrogen storage cycle. In this system, hydrogen is released from nontoxic formates and the resulting CO2 captured in the form of bicarbonates. Bicarbonates are a component of many natural stones and are also commonly used as baking powder or sherbet (sodium bicarbonate, NaHCO3).

“Our new concept has a number of advantages,” says Beller, “in comparison to CO2, solid bicarbonate is easy to handle and is very soluble in water. The resulting bicarbonate solution can be catalytically converted to a formate solution under much milder conditions than those required for the reactions to form methane or methanol.” In addition, the harmless solid could easily be stored and transported. Retrieval of the hydrogen occurs at room temperature or even lower. Says Beller, “Most important is that a closed carbon cycle is now possible because the resulting bicarbonate can simply be loaded up with hydrogen again.”

Author: Matthias Beller, Leibniz-Institut für Katalyse, http://www.catalysis.de/Beller-Matthias.239.0.html
Title: CO2-"Neutral" Hydrogen Storage Based on Bicarbonates and Formates
Angewandte Chemie International Edition, Permalink to the article: http://dx.doi.org/10.1002/anie.201101995

Matthias Beller | Angewandte Chemie
Further information:
http://pressroom.angewandte.org

More articles from Life Sciences:

nachricht Navigational view of the brain thanks to powerful X-rays
18.10.2017 | Georgia Institute of Technology

nachricht Separating methane and CO2 will become more efficient
18.10.2017 | KU Leuven

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Neutron star merger directly observed for the first time

University of Maryland researchers contribute to historic detection of gravitational waves and light created by event

On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...

Im Focus: Breaking: the first light from two neutron stars merging

Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.

Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....

Im Focus: Smart sensors for efficient processes

Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).

When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...

Im Focus: Cold molecules on collision course

Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.

How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...

Im Focus: Shrinking the proton again!

Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.

It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ASEAN Member States discuss the future role of renewable energy

17.10.2017 | Event News

World Health Summit 2017: International experts set the course for the future of Global Health

10.10.2017 | Event News

Climate Engineering Conference 2017 Opens in Berlin

10.10.2017 | Event News

 
Latest News

Osaka university researchers make the slipperiest surfaces adhesive

18.10.2017 | Materials Sciences

Space radiation won't stop NASA's human exploration

18.10.2017 | Physics and Astronomy

Los Alamos researchers and supercomputers help interpret the latest LIGO findings

18.10.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>