Hydrogen Storage Tanks For Use In Hydrogen Powered Motor Vehicles May Be Made Viable Using Nanotechnology

Topics Covered

Background

Difficulties With Hydrogen

New Hydrogen Storage Methods

Carbon Nanotubes

Metal Hydrides

Background

Hydrogen has been touted as an environmentally friendly wonder fuel that can be used in vehicles and burns to produce only water as a by product. The problem with hydrogen is that producing it is far from environmentally friendly and storing it in a fuel tank is extremely hazardous. Researchers are turning to nanotechnology to overcome these problems.

Difficulties With Hydrogen

Highly flammable hydrogen presents storage and transport problems as it is an easily ignited, bulky gas. Modern gasoline powered vehicles tend to have a range per tank of around 450-500km. Using current technologies, a hydrogen fuel tank would need to have a capacity of around 200litres to give a vehicle this range. To be of an acceptable size the tank should store at least 6% by weight of hydrogen when compared to the tank or 0.045kg/L.

It would also need to resist rupture and leakage in the event of an accident, while freely releasing the hydrogen as required.

New Hydrogen Storage Methods

Several new methods are being developed for the storage of hydrogen. These systems are based around a range of materials but the two most promising systems use carbon nanotubes and metal hydrides as the storage medium.

Carbon Nanotubes

The high surface area of carbon nanotubes allows the construction of a microporous material where the hydrogen is held like water is held in a sponge. Unfortunately unless run at cryogenic temperatures, this system currently leaks hydrogen.

Metal Hydrides

Metal hydrides are able to meet and surpass the storage density problem but at this stage require extremely high temperatures in order to release the hydrogen.

Source: AZoNano

For more information on this source please visit AZoNano

 

Tell Us What You Think

Do you have a review, update or anything you would like to add to this article?

Leave your feedback
Your comment type
Submit
Azthena logo

AZoM.com powered by Azthena AI

Your AI Assistant finding answers from trusted AZoM content

Your AI Powered Scientific Assistant

Hi, I'm Azthena, you can trust me to find commercial scientific answers from AZoNetwork.com.

A few things you need to know before we start. Please read and accept to continue.

  • Use of “Azthena” is subject to the terms and conditions of use as set out by OpenAI.
  • Content provided on any AZoNetwork sites are subject to the site Terms & Conditions and Privacy Policy.
  • Large Language Models can make mistakes. Consider checking important information.

Great. Ask your question.

While we only use edited and approved content for Azthena answers, it may on occasions provide incorrect responses. Please confirm any data provided with the related suppliers or authors. We do not provide medical advice, if you search for medical information you must always consult a medical professional before acting on any information provided.

Your questions, but not your email details will be shared with OpenAI and retained for 30 days in accordance with their privacy principles.

Please do not ask questions that use sensitive or confidential information.

Read the full Terms & Conditions.