Student, this hydrogen-based energy production is a type of thermal energy production. Thermal power generation refers to using the heat released from combustion to evaporate the liquid to form steam to rotate the turbine, and then rotate the generator to generate. Electricity. Our current thermal power generation is primarily based on burning coal, but the carbon dioxide produced by burning coal has a huge effect on the greenhouse effect. Therefore, clean energy sources such as hydrogen that do not produce carbon dioxide when burned are being investigated. as well as hydrogen batteries, new energy batteries that use chemical reactions with hydrogen to produce electricity.
Under normal circumstances, why can't water be directly transformed into hydrogen and oxygen?e as fuel?
Yes, water is a very stable compound, so it's a scam.
Currently, there is no stable and inexpensive catalyst for electrolyzing water. The common commercial catalyst is iridium dioxide, a precious and very expensive metal. Currently available commercially are hydrogen fuel cells, in which hydrogen and oxygen are placed at both ends of the anode and cathode, respectively. Hydrogen protons enter the holes in the proton exchange membrane (PEM) and combine with oxygen molecules, as well as redox. The reaction occurs under the action of the catalyst and the electrons stuck outside the membrane must bypass both ends of the electrode plate, thereby generating current to drive the motor.
Is there an engine that uses water as fuel?
Currently, in addition to the technology ofhe production of hydrogen by photolysis of water, it was developed in 1972 by Fujishima A and Honda of the University of Tokyo, Japan, were the first to report the discovery of the phenomenon of photocatalytic decomposition of water by a single crystal TiO2 electrode to produce hydrogen. Until now, no very good catalyst has been found that can quickly decompose water into hydrogen and oxygen.
Water cannot replace gasoline as a fuel; water is not flammable and cannot be used as fuel. Hydrogen is produced by the decomposition of water under certain conditions and can be used as fuel. It is impossible for water to transform into gasoline because the two components are different; otherwise it would violate the law of conservation of mass.
Hydrogen and oxygen have higher energy than water, so combining the two in water releases energy, while decomposingturning water into hydrogen and oxygen requires energy. Hydrogen and oxygen in water are in a very stable (very low energy) state. If water can produce a substance with less energy through chemical changes, water can be used as fuel to release energy. However, the current earth environment and the accumulation of human chemical knowledge over hundreds of years have not yet discovered this substance, so water cannot yet be used as fuel on earth .
The existence of hydrogen bonds affects the morphology, chemical activity, etc. fabrics. Hydrogen bonds in water make water very stable. Only a high temperature of around 1300°C or electricity can decompose water into oxygen. and hydrogen (volume ratio 1:2) Since the cost of water electrolysis and high temperature water decomposition is too high, scientistsThey are looking for a new type of catalyst capable of transforming water into hydrogen and oxygen at room temperature, but there are currently no reports on this subject.
From 2020, some engines will use water as fuel.
Extracting hydrogen from water and using it as fuel has been the focus of scientists' efforts for many years, especially in today's world, when shortages of fossil fuels such as oil is becoming more and more important, the importance of this type of research has attracted the attention of many people.
As early as 2008, a Japanese company called Genepax developed a car that uses water and air as fuel. The car uses a technology called a membrane electrode array to split water into hydrogen and oxygen to propel the car forward without producing polluting gases.
InfDetailed information: Genepax announced its new research and development model in Osaka on June 12, 2008. This car only needs 1 liter of water. water to ride at a speed of 80 kilometers per hour for one hour, and any water can be rain, river or sea. water. “As long as you put a bottle of water in your hand and add it, it can work,” said Kiyoshi Hirasawa, CEO of Genepax. Genepax explained that it uses a new fuel cell system technology called a “hydraulic power system”. Use water as fuel without emitting carbon dioxide. This system supplies external water and air to the fuel cell and air electrode, respectively, thereby generating electricity. The company said at a press conference held at Osaka Kaikan on June 12 that the basic principle of power generationity of this system is similar to that of an ordinary hydrogen fuel cell when water is injected into the water tank. located at the back of the car, a generator inside will split the water and use it to produce electricity. People's Daily Online - Forum: A "water-fuel" car can run for 1 hour with 1 liter of water