World-Scale Hydrogen Economy

Proponents of a world-scale hydrogen economy argue that hydrogen can be an environmentally cleaner source of energy to end-users, particularly in transportation applications, without the release of pollutants like particulate matter and carbon dioxide. However hydrogen continues to have technical obstacles associated with it, including storage issues, due to the fact that hydrogen has a high energy density by weight, but has a low energy density by volume when not highly compressed or liquefied.  
A lot has been written about hydrogen and human being’s emergence into a “hydrogen economy”. There are many studies published and numerous advances in the related technologies. As a matter of fact the November 13th edition of the journal, Science,…show more content…
Hydrogen freely bonds with other elements and is therefore bound into molecules on earth. Plants use Photosystem II to carry out a hydrolysis reaction in their chloroplasts; cleaving a water molecule and biding the hydrogen into carbohydrates while letting the oxygen free. This is where the energy in fossil fuels is originally derived. On earth hydrogen is mostly found in water. Hydrogen makes up roughly 11% of the mass of water and water is roughly 0.09% of the total mass of the earth. [2]
How do you free the hydrogen? There are at least four ways do so. The most common is “steam reforming”, 95% of current hydrogen production comes from steam reforming fossil fuels. Environmentalists argue that using carbon-rich fuel sources like fossil fuels would defeat the purpose of switching to hydrogen in the first place; Using fossil fuels would just turn a non-point source emission (from tailpipes), into a point source emission (from power plants). They argue the solution to carbon pollution is to combine hydrogen production with renewable non-carbon releasing forms of power, like wind energy and solar power.
Hydrogen carries energy through its attractiveness towards other elements. When hydrogen bonds with gaseous oxygen (O2) energy is released. The products of this reaction are energy and water, (H2O). We can use this energy to power electrical devices and
 

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