Chapter 120
But this approach is essentially the storage of fossil energy, electricity, and converting it into hydrogen.
Chen Fan wants to develop a more efficient and cleaner hydrogen production machine.
That is——"Hydrogen engine"
""Water-hydrogen engine" actually adds aluminum powder and water to a specific device, and the two react to generate a large amount of hydrogen.
However, metal aluminum reacts very slowly with water at room temperature and cannot produce a large amount of hydrogen in a short period of time.
However, when processing aluminum into tiny particles, the high-risk explosiveness of metal dust needs to be taken into consideration, and the safety performance is difficult to guarantee.
What Chen Fan needs to do now is to solve this problem: automotive aluminum alloy.
Hydrolysis hydrogen production technology.
Purpose: To realize the ready-to-use hydrogen, filtered hydrogen can be directly used in fuel cells to avoid technical difficulties in storage and transportation.
With Xiaoqiang by his side, Chen Fan quickly mastered the method of regulating aluminum alloy.
However, a new problem arises, that is, this type of aluminum alloy material is lost as a reactant during the hydrogen production process and must be replenished in time if hydrogen is to be generated through metal reactants.
, then the finished car may have to keep a large amount of metal materials.
"Perhaps more efficient and cheaper catalysts could be developed? Chen Fan frowned slightly,"Xiaoqiang, check the rationality.""
"The rationality is zero. The reason: the catalyst itself only changes the rate and equilibrium of the chemical reaction, but does not change the total Gibbs free energy of the reaction."
"The reaction between hydrogen and oxygen can release a large amount of energy. Catalysts alone without adding external energy (light energy, electrical energy, etc.) cannot promote the reverse process of the reaction, that is, the decomposition of water into hydrogen and oxygen."
Chen Fan stopped, took a glass of water, and thought.
In the development and utilization of hydrogen energy, technology, cost and safety are all factors that restrict its development. At present, international first-tier automobile manufacturers such as Mach and Farah International first-tier automobile manufacturers have begun to experiment with hydrogen fuel vehicles, but they have encountered many difficulties.
For example, hydrogen refueling stations, hydrogen pipeline transportation, and safe energy storage technologies need to be developed at the same time. , petroleum is different.
Hydrogen is flammable and explosive, with an explosion limit of 4% to 75% in air. Safety is the top priority when using hydrogen.
Based on this, he is not only studying how to be more efficient. To obtain hydrogen more safely.
There is also the design of a fuel cell system for hydrogen vehicles. The current catalyst"platinum" commonly used for hydrogen production is too expensive and easy to damage.
"Xiaoqiang, check the current cost ratio of the complete vehicle cost of hydrogen energy vehicles to that of electric and oil-gas hybrids."Chen Fan asked while drinking water.
There is no doubt that with Xiaoqiang, his research speed will be much faster.
"……On the whole, the current vehicle cost of hydrogen vehicles is about 2 times that of fuel vehicles and about. In addition to the self-produced hydrogen concept cars previously designed by Mesai, all hydrogen cars designed by major automobile manufacturers use external hydrogen sources."
However, water-hydrogen energy vehicles have still not been rolled off the production line and successfully mass-produced. Hydrogen is a clean secondary energy, but the production of hydrogen is not clean.…."
The experiment continues.
Fail once, fail twice, fail three times.
Compared with before, there is a big difference, that is, in the experimental steps, Xiaoqiang can predict the success probability of the experiment.
This undoubtedly greatly reduced the workload for Chen Fan.
He doesn't need to wait until the last moment to know the results and then conduct the next experiment.
Four times, five times, six times. Until thirty-eight times.
Even as the night deepened, Chen Fan still didn't feel tired. In other words, he had forgotten his tiredness and was immersed in the experiment.
Six o'clock in the morning.
The experiment has reached its final stage.
Chen Fan developed a new type of material based on existing hydrogen fuel cells. He calls it lithium battery. The lithium battery replaces the proton exchange separator in the cost of PEMFC for automobiles and replaces the platinum catalyst.
Battery costs are greatly reduced. At the same time, the reactive performance of lithium batteries can be increased by increasing electrode activity, increasing operating temperature and reaction control parameters.
And while improving stability, the occurrence of side reactions is avoided.
Normally, reactivity and stability are incompatible, but the emergence of lithium batteries makes it possible.
Eight in the morning.
System judgment:
"Hydrogen energy vehicles are 70% complete, keep working hard. Victory is close at hand."Now that the engine has been researched, can hydrogen energy vehicles be far behind?
Chen Fan's stomach growled with hunger, and his head suffered from tinnitus and headache due to long-term thinking.
Hold on a little longer.
He took it from the cabinet After taking out the bread, he ate it and closed his eyes.
After eating,
Chen Fan stood up. Now he should consider the battery problem!
It can run for 480 to 650 kilometers.
The batteries currently on the market still have major flaws: about 1/3 of the electric energy must be used to maintain the low temperature of the tank to maintain the hydrogen in a liquid state, and it is evaporated and lost through the gaps. of hydrogen is approximately 5% of the total inventory.