The Research On Hydrogen Production Performance And Application Of Aluminium Matrix Composite Powder Material

With the increasing depletion of fossil fuels and the continuous deterioration and pollution of the environment,the search for new clean energy has become the key to human survival in the future.As a kind of clean and green energy,hydrogen energy has abundant reserves on the earth and space,and it is a new energy that is worth developing and applying.The traditional hydrogen energy development methods mainly use electrolytic water and fossil energy reforming to produce hydrogen,but these methods need large energy consumption and cause environmental pollution.In addition,the current way of hydrogen storage and transportation is mainly high-pressure hydrogen storage tank,but this method has strict requirements on site and safety conditions.As a kind of solid hydrogen storage material which is convenient for synthesis and application,aluminum based hydrogen production material can be prepared by reacting with water to produce pure hydrogen source,and there is no by-product.At the same time,the requirements for storage and transportation conditions ar e not high,and the raw materials prepared by synthesis are relatively easy t o obtain,which is worth exploring and researching.In this paper,a series of research and exploration were carried out on the hydrogen production performance,cost optimization and feasibility verification of on-site hydrogen production of Al-Bi-Sn aluminum based materials.The spherical aluminum matrix composite powder with self-contained core-shell structure was prepared by melting and alloying method of atomization milling.Its hydrogen production performance was studied by adjusting the composition of the powder,mixing ratio,water adding speed and other variables.The cost optimization was carried out by mixing different components of the powder to a certain extent.Combined with the experimental results,the appropriate powder composition was selected for later application The feasibility of on-site hydrogen production was further verified.On this basis,considering the cost of the powder,the large-scale promotion of the powder in hydrogen production and hydrogen supply is limited.On the premise of not destroying the structure of Al-Bi-Sn aluminum matrix composite powder,the method of mixing the mechanical ball milling powder with the Al-Bi-Sn aluminum based composite powder by adding inorganic salt into the aluminum powder is proposed,and the cost of aluminum based hydrogen production material is reduced by using the low price of inorganic salt.At the same time,the hydrogen production performance of the powder was tested,and the influence of the amount of inorganic salt and milling time on the hydrogen production performance of the powder was explored.It was confirmed that the powder prepared by this method can ensure the good hydrogen production performance and effectively reduce the cost of hydrogen production.In terms of feasibility verification of on-site hydrogen production,based on the research results of hydrogen production performance of aluminum matrix composites,an on-line hydrogen energy car was designed and manufactured,and three generations of drip water storage hydrogen production system was made and iterated.With the work of fuel cell,the continuous operation of 4 g powder for 30 min and stable driving for more than 10 min were realized.On this basis,two kinds of large-scale integrated hydrogen production and supply systems and devices were designed.The prototype of portable hydrogen generation and hydrogen supply integration system and device was made.Through simple preliminary test,further improvement suggestions were put for ward.