Scientists invented based on organic materials for hydrogen storage methods more simple green
Hydrogen has been considered as vehicles for future economic development on energy for sustainable development, so scientists have been downright cursedness to find practical and safe hydrogen storage methods, although certain progress has been made, but so far, scientists have not found a wide application and can be effective ways to meet industrial requirements. It is reported that in the latest issue of on the German edition of the journal of applied chemistry, scientists described a simple hydrogen based on formic acid salts and carbonates method, new methods will not be carbon dioxide emissions are environmental friendly.
Hydrogen storage materials and practical requirements can absorb and release hydrogen under at normal temperature and pressure, in a small space to accommodate as many as possible of hydrogen, and can be released quickly meet the dosage of hydrogen. Metal hydride tanks can store large amounts of hydrogen gas, but its expensive and heavy, and can only be in operation at high temperature or very low temperatures.
In organic materials for hydrogen storage, in addition to the methane and methanol, scientists have also been Formate and formic acid salt manufacturing hydrogen capacity of great interest. However, the use of these materials for hydrogen is one of the basic problems, when the hydrogen release comes out, how to isolating the carbon dioxide produced.
Now, Germany Matthias, a researcher at the Institute of Leibniz-Baylor-led research team was able to successfully use a special, can speed up absorption of hydrogen release and ruthenium catalysts, built a reversible hydrogen without carbon dioxide cycle. In the system, non-toxic salts of formic acid releases hydrogen, carbon dioxide produced in the form of bicarbonate is “captured”, so as to form a closed carbon cycle. Bicarbonates are many natural stone part of widely used baking powder or sherbet.
Baylor said the new method of hydrogen has many advantages. First, compared with carbon dioxide, solid bicarbonates easier disposal of harmless, and can easily be stored and transported. Second, the solid state hydrogen carbonate is soluble in water, and the bicarbonate solution can also use the catalyst into salt solution of formic acid, and this reaction on the environment than the formation of methane or methanol at the request of lower demands on the environment.
Text/science and technology daily