Chemistry

News and events

1 July 2016

Development of novel light weight hydrides and systems based thereon for hydrogen storage

Presented By Dr Martin Dornheim, Scientific and Strategic Director, Materials Technology Division, Helmholtz-Zentrum Geesthacht

About this event

Dr Martin Dornheim is a well-known international researcher, an expert in his field and Deputy Director of the Institute of Materials Technology and Centre for Hydrogen Technology at the Helmholtz-Zentrum Geesthacht.  Whilst in the UK, his visit will offer a substantive opportunity to develop collaborative links with his institution.

His lecture is entitled Development and of novel light weight hydrides and systems based thereon for hydrogen storage and will be based on:

  • Insights on reaction mechanisms, sorption behaviour, cycling stability of lightweight hydrides and Reactive Hydride Composites
  • Production of materials for hydrogen storage for various applications
  • Influence and optimisation of compaction on materials
  • Advantages, limitations of materials for hydrogen storage

Programme:
12.00 - Delivery of Lecture by Dr Martin Dornheim
13.00 – Lunch
13.30 - Hydrogen Safety Studies - A talk by Prof Malalasekara
14.15 - Research at ERL - A talk by Prof Wijayantha
15:00 – Close

Please register for this event here

 Abstract

Hydrogen is considered as an important energy carrier for a future energy supply based on renewable energies. Hydrogen storage, however, is one major obstacle for the implementation of hydrogen technologies. Several different options like liquid hydrogen storage, compressed gas storage and solid state storage in metal hydrides exist. Nevertheless, so far none of these alternatives fulfils all industrial requirements like costs, gravimetric and volumetric storage capacities, formability and operating conditions simultaneously.

Metal hydride storage tanks show the advantage of extremely high volumetric storage capacities, formability and safety as well as long term hydrogen storage under moderate conditions. The main disadvantage, however, is the gravimetric storage density which in case of most room temperature hydrides is limited to less than 2 wt.%.

In recent years novel light weight metal hydrides, complex hydrides and Reactive Hydride Composites with significantly increased reversible gravimetric hydrogen storage capacities have been developed. Such light weight metal or complex hydrides offer the potential for a compact, safe and energy efficient hydrogen storage alternative for stationary as well as mobile applications.

In this presentation, results attained by different characterisation techniques are given. The possibility to produce such materials in reasonable amounts and qualities for application in hydrogen storage tanks is discussed as well as the advantages and limitations or disadvantages of their usage for hydrogen storage.