As a new energy source, hydrogen has less pollution to the environment and less pollution in the production process, which is one of the best modern energy sources and one of the most potential for development. Sodium hydride catalytic hydrolysis for hydrogen supply is a kind of safety. High hydrogen storage rate. Environmentally friendly feasible hydrogen source technology. We studied the hydrogen supply process. Effect of sodium hydroxide concentration, sodium hydride concentration and reaction temperature on hydrogen supply rate.
Hydrogen energy is one of the important new energy sources to meet the sustainable development of human society and environmental friendliness. Hydrogen energy can provide heat through the combustion of hydrogen or electricity through fuel cells, and the latter is the main direction of development. Fuel cell has high conversion efficiency, high specific power and energy, and is a new generation of power source for vehicles. With the continuous breakthrough of fuel cell technology and the prospect of commercialization, the hydrogen source technology of fuel cell has been paid more and more attention. How to store hydrogen safely and efficiently is an urgent problem to be solved.
There are many storage methods for hydrogen, such as high pressure hydrogen storage, liquefied hydrogen storage, carbon nanotubes adsorption and other physical methods, but also through metal hydride, chemical hydride and other chemical methods. However, the high pressure of hydrogen storage requires a lot of compression work, the liquefaction storage tank is complex, and a lot of energy is needed to keep the low temperature. Metal hydrides are safe and stable, but to be put into practice, the mass hydrogen storage rate needs to be further improved.
In recent years, people have turned their attention to chemical hydrides, such as sodium hydride, sodium aluminum hydride NaAIH, etc., sodium hydride hydrogen supply has the advantages of fast hydrogen supply, rapid start and stop, safe and stable work, and high hydrogen storage rate. Sodium hydride hydrolytic hydrogen supply cannot be continuously charged and discharged in one way, but it can also be reversible through the resynthesis of by-products of hydrogen supply reaction. The material and energy cycle of sodium hydride. Sodium hydride catalyzed hydrolysis to supply hydrogen to fuel cell, the latter output electrical energy, while hydrolysis reaction byproduct sodium metaborate through electrolysis, ball milling, sintering and other methods to produce sodium hydride. The energy needed for resynthesis is provided by solar or nuclear power. It can be seen that hydrogen production by sodium hydride hydrolysis is a feasible and environmentally friendly way to supply hydrogen.