Recycling of carbon dioxide.
Recycling of carbon dioxide to carbon compounds, which are raw materials for the chemical and pharmaceutical industry, is carried out in the course of electrochemical reactions using cheap and available electrocatalysts based on Nickel and phosphorus.
The increase in carbon dioxide in the atmosphere cause global warming. Its content in the atmosphere is of the order of 0,02÷0,04% and has a tendency to increase at a rate of 1.7% per year.
However, excessive amount of carbon dioxide gas can be processed into carbon compounds which are raw materials for the chemical and pharmaceutical industry: formic acid (HCOOH), methylglyoxal (C3H4O2) and 2,3-furandione (C4H4O3). Processing of carbon dioxide gas and water into carbon compounds occurs during electrochemical reaction using cheap and readily available electrocatalysts, created on the basis of Nickel and phosphorous (Ni2P, Ni3P, NiP2, Ni5P4, Ni12P5). The choice of catalyst and the flow conditions of electrochemical reaction, determine the number of atoms of carbon in the resulting molecule in the resulting polymeric carbon compound.
Methylglyoxal (C3H4O2) and 2,3-furandione (C4H4O3) are used as raw material for the production of plastics, adhesives and pharmaceuticals. Toxic formaldehyde can also be replaced by a more secure methylglyoxal.
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