Green energy hydrogen breakthrough

Researchers from Tel Aviv University have succeeded in producing “green” hydrogen using green electricity — The hydrogen is produced without air pollution, with a high level of efficiency, utilizing a biocatalyst

The post Green energy hydrogen breakthrough appeared first on Green Prophet.

Hyzon hydrogen fuel bus

Hydrogen energy may be the future. Currently it costs more to produce than it’s worth but testing, testing, optimising, testing again. This is how energy becomes cleaner and greener.

Researchers from Tel Aviv University have succeeded in producing “green” hydrogen using green electricity — The hydrogen is produced without air pollution, with a high level of efficiency, utilizing a biocatalyst. Hydrogen is a necessary raw material for both agriculture and industry, but 95% of the hydrogen produced in the world today is “black” or “gray” — produced from coal or natural gas and emitting 9 to 12 tons of carbon dioxide for every ton of hydrogen.

For a primer read our history of hydrogen for fuel.

The new method was developed by doctoral student Itzhak Grinberg and Oren Ben-Zvi, under the guidance of Prof. Iftach Yacoby and Prof. Lihi Adler-Abramovich. The promising research results were published in the journal Carbon Energy, focusing on advanced materials and technology for clean energy and CO2 emission reduction.

Green hydrogen from Tel Aviv University

Contact Remot if you want to invest in this new hydrogen breakthrough and this is the team you’d be investing in

“Hydrogen is very rare in the atmosphere,” explains Itzhak Grinberg, “although it is produced by enzymes in microscopic organisms, which receive the energy for this from photosynthesis processes. In the lab, we “electrify” those enzymes, that is, an electrode provides the energy instead of the sun.

“The result is a particularly efficient process, with no demand for extreme conditions, that can utilize electricity from renewable sources such as solar panels or wind turbine. However, the enzyme ‘runs away’ from the electric charge, so it needs to be held in place through chemical treatment. We found a simple and efficient way to attach the enzyme to the electrode and utilize it.”

The world has seen 5 breakthroughs in hydrogen. Read about them here.

5 hydrogen storage and energy breakthroughs

The researchers used a hydrogel (a water-based gel) to attach the enzyme to the electrode, and were able to produce green hydrogen using a biocatalyst, and with over 90 percent efficiency; that is, over 90 percent of the electrons introduced into the system were deposited in the hydrogen without any secondary processes.

Prof. Iftach Yacoby explains that, “The material of the gel itself is known, but our innovation is to use it to produce hydrogen. We soaked the electrode in the gel, which contained an enzyme for producing hydrogen, called hydrogenase. The gel holds the enzyme for a long time, even under the electric voltage, and makes it possible to produce hydrogen with great efficiency and at environmental conditions favorable to the enzyme — for example, in salt water, in contrast to electrolysis, which requires distilled water.

Prof. Lihi Adler-Abramovich adds: “Another advantage is that the gel assembles itself — you put the material in water, and it settles into nanometric fibers that form the gel. We demonstrated that these fibers are also able to stick the enzyme to the electrode. We tested the gel with two other enzymes, in addition to the hydrogenase, and proved that it was able to attach different enzymes to the electrode.”

Today, ‘green’ hydrogen is produced primarily through electrolysis, which requires precious and rare metals such as platinum along with water distillation, which makes the green hydrogen up to 15 times more expensive than the polluting ‘grey’ one.

Oren Ben-Zvi adds: “We hope that in the future, it will be possible to employ our method commercially, to lower the costs, and to make the switch towards using green hydrogen in industry, agriculture, and as a clean energy source.”

The post Green energy hydrogen breakthrough appeared first on Green Prophet.

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