Enable Recite

Subscribe options

Select your newsletters:

Please enter your email address:

@

Your email address will only be used for the purpose of sending you the ITER Organization publication(s) that you have requested. ITER Organization will not transfer your email address or other personal data to any other party or use it for commercial purposes.

If you change your mind, you can easily unsubscribe by clicking the unsubscribe option at the bottom of an email you've received from ITER Organization.

For more information, see our Privacy policy.

News & Media

Latest ITER Newsline

  • Inside the pit | From dizzying volume to cramped environment

    There was a time when the assembly pit felt like a huge arena, with toy-like tools scattered on the floor and workers reduced to Playmobil-size figures. Progres [...]

    Read more

  • Fusion world | UKAEA's CHIMERA set to transform fusion component testing

    Construction of a unique testing machine for fusion components is underway at the UK Atomic Energy Authority (UKAEA).  The machine, known as CHIMERA (or Co [...]

    Read more

  • Award | A 30-year friendship with China

    Some thirty years ago, HT-7, China's first superconducting tokamak, was entering operation and experiencing some issues with its ion cyclotron resonance (ICRH) [...]

    Read more

  • Tokamak assembly | Building the feeders, segment by segment

    Through an opening in the Tritium Building just large enough to admit the 11-metre-long components, two magnet feeder segments were introduced this month into t [...]

    Read more

  • Fusion world | Highest French distinction for former ITER Director-General

    Established in 1802 by Napoléon Bonaparte, then the First Consul of the young French Republic, the French Legion of Honour (Légion d'honneur) is the highest of [...]

    Read more

Of Interest

See archived entries

Deuterium from a quantum sieve

A sieve for molecules: The crystals of the metal-organic compound can be seen at a magnification of more than X6000 under the scanning electron microscope. © MPI for Intelligent Systems (Click to view larger version...)
A sieve for molecules: The crystals of the metal-organic compound can be seen at a magnification of more than X6000 under the scanning electron microscope. © MPI for Intelligent Systems
A metal-organic framework separates hydrogen isotopes more efficiently than previous methods

Deuterium is the heavy twin brother of hydrogen; however, it is more than 20 times rarer than identical twins. It accounts for only 0.015 percent of natural hydrogen and is twice as heavy as the light isotope.

There is no chemical difference between the two isotopes: both deuterium and ordinary hydrogen react with oxygen to form water. Its double mass allows researchers to lay a trail to elucidate chemical reactions or metabolic processes, however. They dispatch a compound containing deuterium into the processes and analyze in which conversion product it turns up. And this is only one of the tasks that deuterium fulfils in research. It may even become an inexhaustible and climate-neutral fuel in future.

This would be the case if nuclear fusion becomes so technically mature that energy is generated on Earth using the same process that also occurs in the Sun. This produces much less radioactive waste than nuclear fission.

In a cooperation established within the DFG German Research Foundation's priority program "Porous Metal-Organic Frameworks" (SPP 1362), a team of scientists from the Max Planck Institute for Intelligent Systems in Stuttgart, Jacobs University Bremen and the University of Augsburg have now been able to enrich deuterium contained in hydrogen more efficiently than with conventional methods.

The findings are reported in the journal Advanced Materials. The researchers discovered that a certain metal-organic framework, abbreviated MOF, absorbs deuterium more easily than common hydrogen at temperatures below minus 200 degrees Celsius.

Read more here. 


return to the latest published articles