Dear Alexandre A C Asselli,

Thank you for your comment. With our induction heater, the heating temperature range is up to about 1,000 °C. 

Under ~700°C that the temperature range and Decomposition temperature is good to me. 

I will search the LiBH4 metal you referred.  Could you tell me any other alloys?

And I have another question, in general, the melting temperature is higher than decomposition temperature? 

Really thank you, Alexandre !

Dear Craig Brown,

I have no knowledge relating H2 storage alloy. So, your comments are really helpful to me. I'll find a little bit more.

Thank you!!

LiBH4 is not an alloy, or an intermetallic. It is a powder, and does decompose easily, and reacts with water.. But, it is not practical to recharge it again. A material that does not melt, but is a practical material to repeatedly refill is nickel lanthanum. Under higher temp and lower pressure, H2 is released as gas.. Under lower temp and higher pressure H2 soaks in.

Thank you Ressell Barton, Alexandre A C Asselli.

I learned a lot, thanks !

Na2PdH2 and Li2PdH2 will melt before releasing hydrogen. But melting points still above 400 oC

metal hydrides don't need to melt to release H2, heating will do it. 

Your test apparatus will release hydrogen when used with any of the metal hydride compounds that hold H2. A temp sensor in the middle of the sample will be informative, with the temp graph on the same chart as the H2 flow rate  or release rate from the sample.