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Explain the best methods of storing hydrogen. 11720026 Daisuke Ishikawa. “ L iquid hydrogen or Compressed hydrogen ”. Methods of storing hydrogen. Introduction. “ Chemical storage ” Metal hydrides, Carbohydrates. “ Physical storage ” Carbon nanotube, Cryo -compressed. Advantages.

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Presentation Transcript
introduction

“Liquid hydrogen or Compressed hydrogen”

Methods of storing hydrogen

Introduction

“Chemical storage”

Metal hydrides, Carbohydrates

“Physical storage”

Carbon nanotube, Cryo-compressed

liquid hydrogen or compressed hydrogen

Advantages

A method to liquefy like gasoline is ideal to store hydrogen most compactly.

Liquid hydrogen or Compressed hydrogen

It is suitable for the mass transit.

Disadvantages

Hydrogen has low liquefaction temperature with -253 degrees Celsius. It needs big energy to liquefy.

chemical storage1

Advantages

The hydrogen filling density is extremely higher than gas.

It can prevent the outbreak of the accident by the sudden hydrogen leak.

Chemical storage

Disadvantages

These metals except Mg and V are very heavy.

There are the heat with the reaction.

physical storage

Hydrogen carriers based on nanostructured carbon have been proposed.

Physical storage

Despite initial claims of greater than 50 wt% hydrogen storage, it has generally come to be accepted that less than 1 wt% is practical.

There is a capillary array same way of carbon nanotubes.

conclusion

“Compressedhydrogen is mainstream now.”

‘More efficient’

Conclusion

Safety

Low cost

Light

Big capacity

Chemical storage

Physical storage