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Dr Asaduzzaman Chowdhury and Bengir Ahmed Shuvho
Hydrogen electricity is viewed as a clean or green energy carrier analogue. Hydrogen is produced from various internal sources such as renewable energy and nuclear power. In the long run, hydrogen abates extraction oils, greenhouse gases and other pollution emissions dependence simultaneously. Hydrogen can be apprehended as the simplest element of existence. Researchers recognized Hydrogen is one of the most promising ingredients in the atmosphere. Hydrogen is an excellent fuel for many reasons because it has some noteworthy properties such as carbon free, lighter than air, exceptionally clean, odorless, nontoxic, safe to produce, easy to store in large amount.
The annual production of hydrogen is estimated to be about 55 million tons with its consumption increasing by approximately 6 per cent per year.
Hydrogen is not available naturally as gas and must be produced. Hydrogen gas is lighter than wind. Researchers concede Hydrogen is to be the second source of energy, usually known as a power carrier. Power carriers are used to transfer easily, store and distribute a power that can be used. Hydrogen has different advantages as a vital energy carrier in the future. For example, hydrogen can easily be stored in different quantities. Hydrogen is also considered as high efficiency, low pollutant fuel, which can be used for transport, heat and electricity in difficult places for electricity use
The most common methods used for hydrogen production are electrolysis or water separation and steam repair. Steam repair is currently the least expensive method for the production of hydrogen. Nowadays, hydrogen is mainly produced by the steam reforming of natural gas, a process which leads to massive emissions of greenhouse gases.
Close to 50 per cent of the global demand for hydrogen is currently generated via steam reforming of natural gas, about 30 per cent from oil/naphtha reforming from refinery/chemical industrial off-gases, 18 per cent from coal gasification, 3.9 per cent from water electrolysis, and 0.1 per cent from other sources.
It is used in the industry to isolate hydrogen atoms from methane carbon atoms. Methane is a fossil fuel, thus it produces greenhouse gas that connect the global warming to the steam repair process. Another method of producing hydrogen is electrolysis. Electrolysis transmits an electric current through water to separate its basic components, hydrogen and oxygen. Then hydrogen positive charge cathode and oxygenated nodes are collected. Hydrogen generated by electrification is very pure, and there is no result of emissions because electricity can be used from renewable energy sources. Unfortunately, electrification is currently a very costly process.
There are various experimental methods for creating hydrogen-like photos-electrolysis and biomass gasification. Scientists have discovered that some algae and bacteria use sunlight as their energy source for the production of hydrogen under certain conditions. Currently, hydrogen is mainly used as a fuel for the NASA space program. When the liquid is used to run hydrogen space shuttle and other rocket, the power capacity of the Hydro magnetic Fuel Cell ensures the shuttle of the power capacity. Hydrogen fuel cell is used to produce pure water for shuttle crew. Fuel cells convert hydrogen chemicals directly into electricity, pure water and temperature at temperatures. Hydrogen-powered fuel cells are not only pollution free, but also two or three times efficiency increases as compared to conventional combustion technologies.
Fuel cells can power almost any portable device using batteries often. Fuel cell vehicles, trucks, buses and marine vessels, as well as conventional transportation technology can support. Hydrogen can play a crucial role in future instead of imported petroleum in cars and trucks. In the future, hydrogen will join in electricity production as an important energy carrier; it can be made from renewable source sources and can be safely made from non-pollution. It will be used as a fuel for ‘zero-emission’ vehicles, in home heating and office heating, electricity generation and aircraft lighting. There is a great potential for hydrogen as a way to reduce dependency on fuel. Hydrogen can play a big energy role.
Electrolysis produces no carbon emissions. Yet the amount of hydrogen produced using this method depends on the power consumption and availability from renewable sources. A report from the Royal Society shows that electro-chemicals may be more suitable for power-fuel and off-grid deployment than large-scale, centralized hydrogen production. It can be mentioned that the processes of producing hydrogen energy or fuel cell for mitigating the future energy are to be taken into account must consider not only environmental concerns but also the most favorable economics.
The Bangladesh government should consider the production of hydrogen and motivated the country researchers to invent new method as well as economic process to produce hydrogen energy. Thus, the dependency of importing fossil fuel will be reduced as well as the government can contribute in global warming.

Dr Asaduzzaman Chowdhury: Professor of DUET, Gazipur
Md Bengir Ahmed Shuvho: Researcher