Nav: Home

Hydrogen in your pocket? New plastic for carrying and storing hydrogen

November 28, 2016

A Waseda University (Tokyo) research group has developed a polymer which can store hydrogen in a light, compact and flexible sheet, and is safe to touch even when filled with hydrogen gas.

Although research and development on technology allowing hydrogen to become a major energy source have been going on for many years, the conventional methods of storing and carrying hydrogen were accompanied by safety risks such as explosions. Recently, hydrogen-absorbing organic compounds have been studied as storage materials, for their ability to stably store and release hydrogen through chemical bonding. However, these compounds require vessels or tanks maintained at high pressure and/or temperature and often encounter difficulty in releasing the hydrogen gas. Widespread commercialization of hydrogen as an energy source requires a safer and more efficient system for storing and carrying it.

The research group, led by Professors Hiroyuki Nishide and Kenichi Oyaizu of the Department of Applied Chemistry, developed a ketone (fluorenone) polymer, which can be produced as a thin sheet, and can fix hydrogen via simple electrolytic hydrogenation in water at room temperature. Furthermore, the fluorenol polymer can release hydrogen when heated to 80 degrees Celsius with an aqueous iridium catalyst. The group proved that under mild conditions the cycle of fixing and releasing hydrogen can be repeated without significant deterioration.

The advantages of the ketone/alcohol polymer include easy handling, moldability, robustness, non-flammability and low toxicity, pointing the way to the development of a light, thin plastic container that can be carried in your pocket. The new material is also expected to contribute to the creation of distributed energy systems, especially in remote areas.

The research results were published in the Nature Communications on September 30.
-end-
Publication

Title: A ketone/alcohol polymer for cycle of electrolytic hydrogen-fixing with water and releasing under mild conditions
Authors: Ryo Kato, Keisuke Yoshimasa, Tatsuya Egashira, Takahiro Oya, Kenichi Oyaizu & Hiroyuki Nishide; Department of Applied Chemistry, Waseda UniversityWaseda University News

Waseda University

Related Hydrogen Articles:

Paving the way for hydrogen fuel cells
The hype around hydrogen fuel cells has died down, but scientists have continued to pursue new technologies that could enable such devices to gain a firmer foothold.
Keeping the hydrogen coming
A coating of molybdenum improves the efficiency of catalysts for producing hydrogen.
Hydrogen bonds directly detected for the first time
For the first time, scientists have succeeded in studying the strength of hydrogen bonds in a single molecule using an atomic force microscope.
Argon is not the 'dope' for metallic hydrogen
Hydrogen is both the simplest and the most-abundant element in the universe, so studying it can teach scientists about the essence of matter.
Metallic hydrogen, once theory, becomes reality
Nearly a century after it was theorized, Harvard scientists have succeeded in creating metallic hydrogen.
From theory to reality: The creation of metallic hydrogen
For more than 80 years, it has been predicted that hydrogen will adopt metallic properties under certain conditions, and now researchers have successfully demonstrated this phenomenon.
Artificial leaf goes more efficient for hydrogen generation
A new study, affiliated with Ulsan National Institute of Science and Technology has introduced a new artificial leaf that generates hydrogen, using the power of the Sun to mimic underwater photosynthesis.
Hydrogen from sunlight -- but as a dark reaction
The storage of photogenerated electric energy and its release on demand are still among the main obstacles in artificial photosynthesis.
New process produces hydrogen at much lower temperature
Waseda University researchers have developed a new method for producing hydrogen, which is fast, irreversible, and takes place at much lower temperature using less energy.
Hydrogen in your pocket? New plastic for carrying and storing hydrogen
A Waseda University research group has developed a polymer which can store hydrogen in a light, compact and flexible sheet, and is safe to touch even when filled with hydrogen gas.

Related Hydrogen Reading:

Best Science Podcasts 2019

We have hand picked the best science podcasts for 2019. Sit back and enjoy new science podcasts updated daily from your favorite science news services and scientists.
Now Playing: TED Radio Hour

Don't Fear Math
Why do many of us hate, even fear math? Why are we convinced we're bad at it? This hour, TED speakers explore the myths we tell ourselves and how changing our approach can unlock the beauty of math. Guests include budgeting specialist Phylecia Jones, mathematician and educator Dan Finkel, math teacher Eddie Woo, educator Masha Gershman, and radio personality and eternal math nerd Adam Spencer.
Now Playing: Science for the People

#518 With Genetic Knowledge Comes the Need for Counselling
This week we delve into genetic testing - for yourself and your future children. We speak with Jane Tiller, lawyer and genetic counsellor, about genetic tests that are available to the public, and what to do with the results of these tests. And we talk with Noam Shomron, associate professor at the Sackler School of Medicine at Tel Aviv University, about technological advancements his lab has made in the genetic testing of fetuses.