[pgsagar]

Originally Posted by sudanmohit

Just got to know about a world record distance covered by a hydrogen train on YouTube

https://Youtu.be/LfVDs-xw_rA?si=xCKuj7gVfeMLjwcd

Future looks good

Running a train on hydrogen is not the same as running a car on it. Train is not a consumer goods. Cars are. The issues involved with hydrogen production, transportation, storage and pumping in car are well-documented elsewhere so I will not go through the copy-paste exercise here. All I am saying is, the headaches involved with Hydrogen far outweigh the gains. Hybrids/EVs are much better option.

[PreludeSH]

Came across an article about the new Egyptian capital city and the tallest office building which will utilize 75% hydrogen and 25% photovoltaics. It uses Liquid Organic Hydrogen Storage - LOHC to store hydrogen. Found a paper on this that talks about various compounds that can be used for storage and transport. Almost functioning like a battery.

https://www.sciencedirect.com/scienc...88913323000248

[volkman10]

When Hydrogen powered automobiles were thought to be dead, Toyota, the pioneer in this technology has a different idea.
However, Toyota, a pioneer in hydrogen technology with the Mirai, could be about to change the landscape with a revolutionary idea: portable hydrogen cartridges that promise to alter the course of this technological battle.

This multi-technology approach reinforces Toyota's idea that hydrogen is not just a competition for batteries, but a complementary alternative that can offer solutions in areas where electricity, on its own, is not sufficient or practical

For years, the debate over the future of transportation has been dominated by the rivalry between two promising technologies: battery electric vehicles (BEVs) and hydrogen-powered vehicles (FCEVs).
The conventional electric car, i.e. the battery car, has gained most of the media and market attention. Meanwhile, hydrogen has remained in the background, partly due to a lack of infrastructure and significant technical challenges.

Toyota is not new to the field of hydrogen. The Japanese brand has opted for a multi-technology strategy, combining hybrid, electric and hydrogen vehicles, with the conviction that there is no single solution for sustainable mobility.

Their latest bet is an intriguing concept: portable hydrogen cartridges designed to be carried by hand, which could make this technology more accessible and practical.

These cartridges, according to Toyota, are lightweight and manageable, making them a viable solution to overcome one of hydrogen's biggest challenges: gas storage and transportation.

Potentially carried like a backpack and easily attached to the car's tank, these cartridges offer a simple method of recharging hydrogen vehicles, alleviating concerns about the lack of infrastructure such as hydrogen stations, which have slowed their mass adoption.

Therefore, the equivalent of a 140-litre tank, the one carried by the Toyota Mirai, weighs just 10 kilograms in total for a declared range of 653 km (WLTP cycle)

One of the most innovative aspects of Toyota cartridges is that they are not limited to vehicles. These portable tanks can also power appliances and other devices, such as a hydrogen stove that Toyota has developed together with the company Rinnai.

This versatility could transform hydrogen into a more common energy source in everyday life on the road, but also at home.

Firstly, its use does not generate carbon dioxide (CO₂) emissions, and when hydrogen is produced by renewable energies, the environmental impact can be significantly minimised.

In addition, the recharging time of a hydrogen car is much shorter than that of a battery vehicle, offering an experience similar to that of refueling a combustion car

This is where Toyota's proposal makes the difference. Reducing the size of these tanks and making them portable not only opens up new possibilities for cars, but also increases the attractiveness of this technology for other applications.

With Toyota's portable cartridges, hydrogen could re-emerge as a competitive option, not only in terms of technology, but also in practicality.

Although today the electric car seems to have won the battle, the war for the future of mobility is not over yet. And with proposals like Toyota's portable hydrogen cartridges, hydrogen may not have said its last word.

Link:

[PhiGolden]

Producing hydrogen, especially green hydrogen, is still pretty expensive because it takes a lot of energy to make. The process, like electrolysis, requires advanced (and costly) equipment, which adds to the price. On top of that, the technology hasn't quite reached the point where we can easily scale it up to make production more efficient or affordable. All these factors mean that hydrogen is still a pricey option compared to other technologies like electric vehicles, which can rely on existing infrastructure. Now there is new hope.

https://www.linkedin.com/posts/willy...member_desktop

https://www.scientificamerican.com/a...ce-clean-fuel/

[SuperGirl_Dad]

Some interesting news on extraction of hydrogen from hydrocarbons without need for carbon capture and sequestration from atmosphere.

Russian scientists propose radical new way to produce hydrogen — inside a gas well.