Hydrogen Technology

     With hydrogen storage playing a pivotal role in allowing the hydrogen economy to emerge, solid-state hydrogen storage is potentially an ideal solution to the needs of a hydrogen infrastructure, enabling efficient and convenient handling and distribution of hydrogen.  Solid-state storage technology is based on the use of hydrides, which are metal compounds that are able to reversibly absorb and release hydrogen.

     Solid-state hydrogen storage is a very promising method of providing hydrogen to fuel cell systems, where hydrogen is liberated on demand from solid hydrides. It represents an attractive alternative to conventional methods of hydrogen storage, e.g. compressed gas or liquid hydrogen, both of which exhibit serious deficiencies. The potential advantages of the solid-state method, such as compactness, long-term storage without losses (being a significant disadvantage in the case of the liquid hydrogen) or limited use of high pressures (being the essence of compressed hydrogen technology) require however the use of materials providing sufficient efficiency and performance. In order to become a viable hydrogen storage medium, hydride materials are required to exhibit several key features, such as sufficient hydrogen capacity, reversibility of hydrogenation and dehydrogenation under practical pressures, suitable temperature of operation, fast kinetics of hydrogen absorption and desorption, moderate heat of reaction, reasonable cost and safety of operation.

Although there is still no ideal hydride system to completely address all of these required features, each of the potential systems exhibit supremacy in certain areas and therefore can be useful under specific conditions of operation, in particular in the required temperature/capacity ranges, as shown below.

Graph comparing solid-state hydrogen storage technologies

Each of these systems however requires optimization of the microstructure and surface properties, as well as catalysis in order to enhance the kinetic performance. A combination of the nanocrystalline structure with the nano-particle catalysis has yielded hydrides with both high hydrogen capacity and remarkable kinetics of operation. Additional advantage comes from the use of solid-state reactions in both the hydride production and its catalysis. In the field of catalysis of hydrogen transfer reactions (which includes catalysis of hydrogen storage materials) our nano-catalyst (based on active metal-hydrogen-electronegative element complexes) is becoming a key enabler for the next generation of advanced hydrides and for various hydrogen transfer reactions. Amongst various investigated applications of the catalyst is the replacement of high cost hydrogen dissociation catalysts such as platinum in hydrogen fuel cells.

Hydrogen Link has a strong proprietary position in the field of hydrogen storage materials and catalysts.


Please contact us with inquires related  to purchase of our hydrogen generators, catalysts or catalyzed materials at contact@hydrogenlink.com

 


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