学术交流英语

It is emergency to find a apporpriate alternative
The Mehtod to extract Hydrogen
(1) Water electrolysis is too expensive (2) Chemical methods is unfriendly to the environment (3)Obtain hydrogen by the reaction of aluminum with water is clean and cheap
Effect of temperature
The heat produced by the reaction to increase the temperature of water
Hale Waihona Puke Baidu
Effect of salt-to-aluminum mole ratio
(1) The powder milled with a=1 did not achieve 100% efficciency (2) Activity of powder increase with increasing the ratio when the ratio is less the 3
The reaction of aluminum with water
Korosh Mahmoodi, Babak Alinejad presented by Arvin university of Science and Technology of China
Environmental Pollution
(2) Add additives to activate the aluminum (3) The salt prevent the activated aluminum from oxiding by the air
Effect of temperature
Incresaing the temperature of water leads to a drastic increase in hydrogen generation rate
(3) There is no significant difference betweeen the case with a=4 and a=7
Explain the reasons
(1) The amount of salt is barely enough to reduce the size of particles with a=1 (2) The activation rate of aluminum powder is low when the ratio is less than 3 (3) The activation rate of aluminum powder has reached 100% with a=4
(3) Adding 7 wt% sillcon,graphite or bismuth additives can greatly increase the rate
Future work
(1) activated aluminum react with saline Lake brine to extract the lithium (2) Use other better methods to produce hydrogen
Effect of additives on hydrogen generation rate
(1) Hydrogen generation rate of alloys are greater than have no additives
(2) The most important effect of additives was to omit delay time
Conclusion
(1) Activating powder of aluminum by mechanical milling of aluminum and salt (2) The optimum salt-to-aluminum mole ratio was obtained to be 4
Energy Crisis
(1) Coal reserves can be mined for 152 years (2) Natural gas reserves can be used for 56 years
(3) Oil for human can be used for 40 years
The Challenging problem of this idea
(1) The aluminum can not react directly with water
(2) How to save the activated aluminum powder
Solution Method
(1) The aluminum powder was milling with the salt